Business taxation requires identifying the taxpayer, tracing basis, classifying income, and applying limitations in the correct order. This guide develops those skills through 20 original four-option questions and 60 worked concepts covering entities, return preparation, trusts, exempt organizations, retirement plans, farms, and rentals. It follows the current PSI cycle as of October 16, 2026: law amended through December 31, 2025, with calendar-year 2025 assumed unless specified. Question allocation is 7/9/4 and concept allocation is 21/26/13 across the three domains. This is a representative preview. Supplied citations establish syllabus relevance and examination scope; they do not independently verify every technical rule explained here.
What this guide covers
Practice 20 original business-tax questions and study 60 concepts for the 2026 SEE Part 2 cycle using 2025 rules.
BUSINESS ENTITIES AND CONSIDERATIONS
1. LLC classification, elections, and taxpayer identity
State-law entity form and federal tax classification answer different questions. A domestic eligible LLC generally defaults to disregarded status with one owner and partnership status with multiple owners. An eligible entity can elect corporate treatment, and a qualifying entity can elect S treatment. A sole proprietorship ordinarily reports directly through its owner rather than becoming a separate income-tax-paying entity. An EIN identifies an account; obtaining one does not elect a tax classification. Disregarded entities can still have separate employment and certain excise tax responsibilities. Entity selection therefore requires tracing ownership, elections, liability arrangements, and employment obligations separately.
Worked example: In 2025, Nora forms a one-owner delivery LLC and obtains an EIN to hire a driver. Without a corporate election, the business generally remains disregarded for income tax while the LLC handles its applicable employer reporting responsibilities.
Common mistake: Assuming an EIN or state LLC certificate automatically creates a corporation confuses administrative identity with federal income tax classification.
Official syllabus reference: [2]
2. Qualified joint ventures and spousal business reporting
Eligible spouses who jointly operate a business and file a joint return may elect qualified joint venture treatment when both materially participate and the other requirements are met. Generally, the business cannot be held in the name of a state-law entity, although separate community-property rules can require additional analysis. Each spouse reports business items according to the spouse's respective interest and calculates self-employment tax separately as applicable. This differs from employing a spouse: an employee receives compensation rather than an ownership allocation. Ownership rights, actual participation, and the chosen reporting treatment must agree.
Worked example: During 2025, spouses jointly run an unincorporated bookkeeping practice, both materially participate, and elect qualified joint venture treatment. Their documented ownership is unequal, so they allocate receipts and expenses by those interests rather than automatically dividing everything equally.
Common mistake: Treating every married co-owned LLC as a qualified joint venture overlooks the separate entity restriction and potentially relevant community-property rules.
Official syllabus reference: [2]
3. Tax years, return deadlines, and extensions
An accounting period determines which transactions fall into a return, while the entity's filing rules determine when that return is due. Partnerships and S corporations generally face restrictions designed to prevent inappropriate deferral through fiscal years; permitted exceptions require their own analysis. A calendar-year partnership or S corporation generally files earlier than a calendar-year C corporation, subject to weekend, holiday, and relief rules. A filing extension usually extends filing time rather than payment time. Payroll and information returns follow separate calendars. Changing a tax year can require consent and a short-period return.
Worked example: A calendar-year corporation preparing its 2025 return obtains a valid filing extension. Its preparer still calculates the payment due by the original deadline and separately tracks payroll returns, rather than moving every obligation to the extended income tax filing date.
Common mistake: Treating an income tax filing extension as a universal payment and payroll extension can create several independent late-compliance problems.
Official syllabus reference: [2]
4. Profit motive versus hobby activity
A business requires an actual profit objective, evaluated through the activity's facts rather than the taxpayer's preferred label. Relevant evidence includes businesslike operations, expertise, time devoted, changes intended to improve profitability, history of results, and possible asset appreciation. Losses alone do not establish a hobby, especially during a genuine startup period, but recurring personal enjoyment with no meaningful commercial response can undermine profit motive. Classification affects whether expenses can create a business loss. Hobby receipts remain potentially taxable, while expense treatment follows the applicable year's restrictions rather than ordinary Schedule C loss treatment.
Worked example: A 2025 horse-breeding operation incurs another loss but maintains breeding records, seeks specialist advice, changes unsuccessful practices, and documents expected appreciation. Those facts support a substantive profit-motive analysis rather than a conclusion based solely on the year's negative cash flow.
Common mistake: Believing either one profitable year or several loss years conclusively determines business status replaces a facts-based inquiry with an unreliable shortcut.
Official syllabus reference: [2]
5. Partnership contributions: inside basis and liability shifts
A contribution of property for a partnership interest generally receives nonrecognition treatment, with carryover basis rules preserving built-in gain. The partnership's basis in contributed property is inside basis; the contributor's basis in the partnership interest is outside basis. Liability changes modify outside basis: an increase in a partner's allocated liabilities generally acts like a cash contribution, while a decrease generally acts like a cash distribution. Debt relief can trigger gain if deemed money exceeds available basis. Contributions for services require different analysis, including distinctions between capital interests and qualifying profits interests.
Worked example: In 2025, Luis contributes property with $30,000 tax basis subject to $12,000 debt. If the partnership assumes that debt and Luis retains a $5,000 liability allocation, his initial outside basis is $23,000, assuming no other adjustments or recognition.
Common mistake: Using contributed property's market value as both inside and outside tax basis erases the built-in gain that carryover rules preserve.
Official syllabus reference: [2]
6. Outside basis and the partnership loss ceiling
Outside basis tracks a partner's tax investment and limits deductible partnership losses. Contributions, allocated income, and qualifying liability increases generally increase basis. Distributions, nondeductible expenditures, losses, and liability decreases generally reduce it under the applicable ordering rules. Tax-exempt income can increase basis even though it is not taxable income. A loss suspended for insufficient basis remains attached to that partner until sufficient basis becomes available under the rules. Passing the basis test does not establish deductibility: at-risk, passive activity, and other owner-level limits may still apply. Capital accounts are not substitutes for outside-basis schedules.
Worked example: For 2025, a partner starts with $9,000 outside basis, receives $2,000 allocated income, and takes a $4,000 cash distribution. Before other adjustments, $7,000 remains to support an allocated loss; any larger loss requires suspension or further basis analysis.
Common mistake: Deducting the entire Schedule K-1 loss because the partnership has adequate assets ignores the separate limitation at the partner level.
Official syllabus reference: [2]
7. Guaranteed payments and partner self-employment income
A guaranteed payment is generally determined without regard to partnership income and can compensate a partner for services or capital. It differs from a distributive share, which allocates partnership results, and from a draw, which ordinarily represents a distribution. Service-related guaranteed payments are generally ordinary income to the partner and may be deductible or capitalizable by the partnership depending on their purpose. Partners generally are not employees of their partnership. Self-employment treatment requires attention to the payment, the partner's status, and applicable exceptions; the limited-partner label alone does not resolve every modern ownership arrangement.
Worked example: In 2025, a partnership agreement gives Morgan $24,000 for management services regardless of profits, plus a share of residual income. The fixed payment is analyzed separately from Morgan's distributive share and from any cash draws against that share.
Common mistake: Treating every cash payment to a working partner as wages overlooks guaranteed-payment, distributive-share, and distribution rules.
Official syllabus reference: [2]
8. Family partnerships and ownership of capital
Family partnership allocations require genuine ownership rather than a paper division of taxable income. When capital is a material income-producing factor, recognition of a transferred capital interest depends on real ownership rights and control, subject to the family partnership rules. Compensation for the donor's services and the economics of contributed capital must also be respected. In a service business, assigning an interest does not automatically shift income earned through another person's labor. Examine transfer documents, distribution rights, withdrawal rights, actual administration, and who performs the work. Valid ownership and defensible income allocation are related but separate questions.
Worked example: A parent transfers a genuine capital interest in a 2025 equipment-rental partnership to an adult child. The preparer examines the child's enforceable ownership and distributions, while also ensuring the parent's management services are not disguised as income allocated entirely to contributed capital.
Common mistake: Assuming a family relationship either invalidates every partnership or validates every written allocation bypasses the actual ownership and income-production analysis.
Official syllabus reference: [2]
9. Partnership interest sales and hot assets
Selling a partnership interest generally produces capital gain or loss, but section 751 separates ordinary-income components attributable to unrealized receivables and specified inventory. Amount realized includes cash, other consideration, and relief from partnership liabilities. Subtract adjusted outside basis to calculate overall gain or loss before dividing its character. The hot-asset calculation can require partnership-level information and cannot safely be inferred from cash proceeds alone. Holding period determines the character of the residual capital component. A sale of the interest differs from the partnership selling its assets, even when both transactions transfer similar underlying economic value.
Worked example: In a 2025 sale, a partner receives $45,000 cash and $10,000 liability relief for an interest with $35,000 basis. Total gain is $20,000; if the supplied hot-asset amount is $6,000, the residual capital gain is $14,000.
Common mistake: Reporting all partnership-interest sale proceeds as capital gain misses both outside-basis recovery and potential ordinary income from hot assets.
Official syllabus reference: [2]
10. Partnership distributions, liquidation, and basis elections
A partnership cash distribution generally reduces outside basis and creates gain when money exceeds available basis. Property distributions instead require specific basis allocation rules; market value is not automatically the recipient's tax basis. Liquidating distributions can differ from operating distributions, particularly for loss recognition and allocation of remaining outside basis. A partner's death or interest transfer can create a mismatch between outside basis and the partnership's inside asset basis. A section 754 election may permit a transferee-specific adjustment under section 743 or a distribution adjustment under section 734. Ending operations also requires final reporting and liability reconciliation.
Worked example: A buyer acquires a partnership interest during 2025 at a price above the buyer's share of inside basis. A valid section 754 election may generate a buyer-specific asset basis adjustment, rather than increasing every partner's share of partnership asset basis.
Common mistake: Assuming an interest purchaser's price automatically resets the partnership's assets for all owners confuses outside basis with partnership-level asset basis.
Official syllabus reference: [2]
11. Centralized partnership audits and partner-level debt relief
The centralized partnership audit regime generally determines partnership adjustments at the partnership level unless a valid exception or election applies. Eligible partnerships can elect out annually when ownership and reporting requirements are satisfied; eligibility depends on partner types as well as size. Otherwise, the partnership representative has broad authority, and an adjustment may lead to an imputed underpayment or an available push-out election. Cancellation-of-debt exclusions present a different level-of-taxation issue: partnership debt discharge generally passes through, while bankruptcy or insolvency exclusions are generally evaluated by the partners. Audit representation and substantive owner-level exclusions should not be conflated.
Worked example: A 2025 partnership has individual partners and one partner that is itself a partnership. Even with few owners, the tiered ownership can prevent an election out of centralized audit treatment. Separately, each partner evaluates any allocated debt-discharge exclusion individually.
Common mistake: Assuming a small partnership automatically escapes centralized audits ignores the ownership restrictions and the need for a valid annual election.
Official syllabus reference: [2]
12. Earnings and profits versus taxable income
Earnings and profits measure a corporation's capacity to make dividend distributions for federal tax purposes. E&P is neither retained earnings nor taxable income; adjustments can reflect tax-exempt income, nondeductible expenses, different depreciation treatment, and other statutory differences. Ordinary shareholder distributions generally become dividends to the extent of applicable current and accumulated E&P, then reduce stock basis, then create gain. Current-year and accumulated deficits require careful ordering rather than casual netting. Distributing appreciated property may also trigger corporate gain and affect E&P. Always analyze both the corporation's consequences and the shareholder's consequences.
Worked example: In 2025, a shareholder receives $16,000 cash when applicable E&P is $10,000 and stock basis is $4,000. The payment produces $10,000 dividend income, $4,000 basis recovery, and $2,000 gain, assuming ordinary nonliquidating distribution treatment applies.
Common mistake: Equating a corporation's bank balance or retained earnings with E&P can materially misclassify a shareholder's distribution.
Official syllabus reference: [2]
13. Corporate dividends-received and charitable deductions
A C corporation analyzes its dividends-received deduction separately from its charitable contribution deduction. Dividend eligibility depends on the payer, ownership relationship, holding requirements, and applicable exclusions; financing arrangements can also restrict the deduction. Charitable gifts require an eligible recipient and appropriate substantiation. Each deduction has its own percentage and taxable-income limitation, so the preparer must determine the correct calculation base and ordering. An unused charitable amount may become a carryover, while dividend limitations have different mechanics. Book expense totals alone do not establish either allowable tax deduction.
Worked example: In 2025, a C corporation has $100,000 before charitable and dividend deductions, including $20,000 of qualifying domestic dividends. All eligibility requirements are met. Assume a 50% dividend deduction, a 10% charitable ceiling on $100,000, and no other limits. Its $6,000 qualifying gift and $10,000 dividend deduction reduce taxable income to $84,000.
Common mistake: Applying one percentage to both deductions overlooks their separate eligibility requirements, calculation bases, and limitations, potentially overstating the corporation's total deduction.
Official syllabus reference: [2]
14. Stock redemptions versus complete liquidations
A corporation's purchase of its own stock can receive sale-or-exchange treatment or distribution treatment depending on the redemption rules. Ownership attribution matters: shares held by related persons may be counted when testing the shareholder's remaining interest. A complete corporate liquidation generally uses a different framework, with shareholders treating liquidating proceeds as consideration for their stock and the corporation generally recognizing asset-level gain or loss, subject to exceptions. Thus a single transaction can create tax at two levels. Labels such as buyout, retirement payment, or capital distribution do not determine treatment without ownership and transaction analysis.
Worked example: During 2025, a corporation buys all shares directly owned by one shareholder, but that shareholder's spouse retains stock. The preparer tests attribution and any applicable waiver conditions before treating the payment as a complete termination qualifying for exchange treatment.
Common mistake: Assuming surrendering every directly held share guarantees capital treatment ignores constructive ownership and the specific redemption qualification tests.
Official syllabus reference: [2]
15. Controlled groups and shared deduction limits
Corporations under common ownership may constitute a controlled group even when each files a separate income tax return. Identify the applicable parent-subsidiary or brother-sister relationship, including relevant attribution rules, before computing provisions that aggregate members. Section 179 illustrates the consequence: group members share a dollar limitation rather than independently claiming a full limitation. Document any permitted allocation agreement, then apply each member's remaining restrictions. Controlled-group status does not itself establish that a consolidated return was elected, and different deductions or credits can use different aggregation definitions.
Worked example: For a 2025 exercise, assume a $100,000 section 179 group dollar limit. A corporate parent owns both subsidiaries entirely. The subsidiaries receive agreed allocations of $60,000 and $40,000; the parent receives zero. Their qualifying purchases are $80,000 and $70,000. With no other restrictions, subsidiary deductions are $60,000 and $40,000.
Common mistake: Separate returns do not necessarily provide separate deduction ceilings. Ignoring common ownership can duplicate a limitation that the corporations must share.
Official syllabus reference: [2]
16. Section 351 control, services, and boot
Section 351 generally defers gain or loss when property is transferred to a corporation for stock and the property transferors satisfy the statutory control test immediately afterward. Services are not property for this purpose, so service-only stock recipients can affect whether the property transferors qualify. Money or nonqualifying property received alongside stock is boot and can cause gain recognition up to realized gain; losses generally remain unrecognized in an otherwise qualifying exchange. Deferred gain is preserved through shareholder stock basis and corporate asset basis. Analyze the transferor group, consideration, and integrated transaction before performing arithmetic.
Worked example: In 2025, a sole property transferor contributes an asset with $25,000 basis for stock worth $65,000 and $10,000 cash. Assuming control and all other requirements are met, realized gain is $50,000, but recognized gain is limited to the cash boot.
Common mistake: Counting service-only stock as qualifying property-transferor ownership can cause an incorrect conclusion that the section 351 control requirement is satisfied.
Official syllabus reference: [2]
17. Liabilities in corporate formation exchanges
A corporation's assumption of liabilities in a qualifying section 351 exchange generally does not itself constitute boot, but important exceptions apply. Liabilities assumed for tax-avoidance purposes or without a bona fide business purpose can receive adverse treatment. Gain can also arise when relevant liabilities exceed the adjusted basis of transferred property, subject to exclusions and detailed rules. Assumed liabilities generally reduce the transferor's stock basis even when they do not cause immediate gain. Therefore, a transaction can have no cash boot yet still produce recognized gain. Identify debt purpose, debt type, asset basis, and all consideration.
Worked example: For a simplified 2025 formation, assume all liabilities count under the excess-liability rule. A transferor contributes property with $35,000 aggregate basis subject to $42,000 debt. Even without cash received, the $7,000 excess can trigger gain under the stated assumptions.
Common mistake: Treating every assumed liability as tax-free without testing excess liabilities and improper-purpose exceptions overlooks distinct recognition rules.
Official syllabus reference: [2]
18. S corporation eligibility and election consent
S status requires an eligible domestic corporation, permitted shareholders, compliance with the shareholder-number restriction, and generally one class of stock. Certain trusts can qualify, but partnerships, corporations, and nonresident alien individuals generally cannot be shareholders. Differences in voting rights alone do not necessarily create a second class; economic distribution and liquidation rights matter. A valid election requires the prescribed filing and shareholder consents, with separate relief provisions for qualifying late elections. A state-law LLC can elect S treatment if eligible. Eligibility must continue after election, so ownership transfers and revised agreements require ongoing scrutiny.
Worked example: An LLC taxed as an S corporation proposes admitting a partnership as a new owner in 2025. Before closing, its adviser identifies the ineligible shareholder issue and explains that the transfer could terminate S status despite an unchanged operating business.
Common mistake: Assuming an accepted S election protects every future ownership change ignores the continuing eligibility conditions imposed on shareholders and stock rights.
Official syllabus reference: [2]
19. S corporation allocations and separately stated items
An S corporation generally allocates tax items using per-share, per-day ownership rather than partnership-style special allocations. Ordinary business results are separated from items whose tax consequences depend on shareholder circumstances, such as charitable contributions, capital gains, and certain credits. Shareholders may owe tax on allocated income without receiving cash. Payments for an owner-employee's services must also be distinguished from distributions; reasonable compensation rules cannot be avoided by calling all withdrawals distributions. Changes in ownership can require careful daily allocation and consideration of available closing-of-the-books elections. Schedule K-1 reports items but does not establish their final deductibility.
Worked example: A 2025 S corporation earns operating income and makes a charitable contribution. It reports the contribution separately rather than burying it in ordinary business income, allowing each shareholder to apply the relevant owner-level deduction rules to the allocated amount.
Common mistake: Negotiating partnership-style special allocations among S shareholders can conflict with allocation rules and potentially signal impermissible differences in economic rights.
Official syllabus reference: [2]
20. S corporation stock basis versus debt basis
Stock basis and qualifying debt basis are separate shareholder accounts. Income and contributions generally increase stock basis, while distributions and applicable expenses or losses reduce it under prescribed ordering rules. Direct bona fide shareholder loans can provide debt basis for losses, but a guarantee generally does not create basis merely when signed. Debt basis cannot shelter an otherwise taxable distribution. Losses first limited by basis may also encounter at-risk and passive activity limits. Repaying a loan whose basis was reduced by prior losses can create taxable gain. Restorations of reduced debt basis require their own ordering analysis.
Worked example: In 2025, an owner has $6,000 stock basis and $10,000 direct debt basis, then receives an $8,000 cash distribution with no other adjustments. The debt basis does not cover the $2,000 distribution exceeding stock basis, even though it may support qualifying losses.
Common mistake: Combining stock and loan basis into one unrestricted pool incorrectly allows debt basis to absorb distributions.
Official syllabus reference: [2]
21. S status termination and excluded debt discharge
S status can end through voluntary revocation or failure to maintain eligibility. Effective dates matter because termination can divide a year into S and C portions with distinct allocation and reporting consequences. Reinstatement or a new election may require waiting or qualifying relief; it is not automatic. Debt discharge adds another corporate-level issue: bankruptcy and insolvency exclusions for S corporation cancellation-of-debt income generally apply at the corporation level. Excluded discharge generally does not pass through as tax-exempt income increasing shareholder basis. Tax-attribute reduction and suspended losses require careful coordination rather than an assumed shareholder benefit.
Worked example: An insolvent S corporation has debt canceled in 2025 and qualifies for an exclusion. Its shareholder cannot simply add the excluded amount to stock basis to release suspended losses; the corporation's exclusion and attribute-reduction rules must be applied first.
Common mistake: Treating excluded S corporation debt discharge as ordinary tax-exempt pass-through income can incorrectly inflate shareholder basis and unlock losses.
Official syllabus reference: [2]
BUSINESS TAX PREPARATION
22. Cash, accrual, and accounting-method changes
The cash method generally recognizes income when actually or constructively received and expenses when paid, subject to capitalization and other exceptions. The accrual method generally uses the all-events test for income and requires both the all-events test and economic performance for deductions. Advance payments, inventory, and related parties can modify ordinary timing. A consistent treatment of a material item can constitute an accounting method; changing it may require consent, often through Form 3115, rather than an amended return. A section 481 adjustment prevents duplication or omission when a method changes. Classify timing changes separately from factual or mathematical errors.
Worked example: A 2025 accrual-method business records an estimated repair reserve without a fixed liability or completed services. Book recognition alone does not establish a tax deduction. The preparer tests liability and economic performance before deciding whether any current deduction is allowed.
Common mistake: Assuming every book accrual is tax deductible ignores economic performance, fixed-liability requirements, and special timing rules.
Official syllabus reference: [2]
23. Inventory costs and uniform capitalization
Inventory accounting matches product costs with the revenue from selling those products. Cost of goods sold generally begins with opening inventory, adds includible acquisition or production costs, and subtracts closing inventory. Freight-in and production costs differ from selling expenses. Uniform capitalization rules can require additional direct and allocable indirect costs to be included in property produced or acquired for resale. Qualifying small-business exceptions may change inventory and capitalization requirements, but eligibility and method consistency must be established. An exception does not permit the same expenditure to be deducted currently and recovered again through inventory.
Worked example: For 2025, a manufacturer has $18,000 opening inventory, $72,000 of includible production costs, and $21,000 closing inventory. Cost of goods sold is $69,000. A separately identified advertising expense is analyzed outside inventory rather than added automatically to production cost.
Common mistake: Expensing merchandise purchases immediately while also including them in cost of goods sold duplicates recovery of the same acquisition cost.
Official syllabus reference: [2]
24. Basis, at-risk, and passive loss ordering
Pass-through losses encounter separate limitations in a prescribed sequence. First determine whether the owner has sufficient tax basis. Next apply the at-risk rules, which focus on amounts genuinely exposed to economic loss and can exclude certain protected or nonrecourse financing, subject to exceptions. Then apply passive activity limitations, generally distinguishing passive losses from income earned through active work or portfolio investments. Additional owner-level limits may follow. Each suspended amount must be tracked by the rule causing suspension. Increasing basis does not automatically restore at-risk exposure or convert passive losses into currently deductible nonpassive losses.
Worked example: A 2025 partner has $30,000 basis but only $18,000 at risk against a $25,000 loss. The at-risk rule suspends $7,000. The remaining $18,000 still undergoes passive activity analysis; sufficient basis alone does not establish a current deduction.
Common mistake: Using one combined suspended-loss balance obscures which future event is needed to release each separately limited deduction.
Official syllabus reference: [2]
25. Cancellation of debt and tax-attribute reduction
Discharge of an enforceable debt generally creates income when the debtor is released from repayment, unless an exception or exclusion applies. Bankruptcy and insolvency exclusions have specific requirements, and insolvency is measured immediately before discharge using the relevant assets and liabilities. Exclusion often leads to tax-attribute reduction rather than a permanent tax benefit without consequences. Foreclosure can involve both a property disposition and debt discharge, with different treatment for recourse and nonrecourse obligations. Entity type determines whether an exclusion is tested at the entity or owner level. Form 982 may be required to report exclusions and attribute adjustments.
Worked example: For a simplified 2025 discharge, a debtor has $90,000 liabilities and $75,000 asset value immediately beforehand. Assuming all items count and the insolvency exclusion applies, $15,000 of insolvency can shelter that amount of canceled debt; any excess needs separate analysis.
Common mistake: Treating a lender's canceled-debt notice as proof that every dollar is taxable ignores exclusions, disputed amounts, and potential disposition components.
Official syllabus reference: [2]
26. Worker classification and compensation reporting
Worker classification follows the actual relationship, including behavioral control, financial control, and the parties' relationship. A written contractor agreement or the worker's preference does not settle the issue. Instructions about how work is performed, employer-provided equipment, continuing assignments, and limited entrepreneurial opportunity can support employee status. An independent business may instead control its methods, invest in equipment, and face profit or loss. Classification determines wage withholding, employment taxes, and the appropriate information return. Evaluate compensation deductibility and any fringe-benefit exclusion separately after identifying the worker's status.
Worked example: In 2025, a repair shop assigns Lena fixed shifts, supplies her tools, directs each repair, and pays hourly wages. Lena has no business investment or opportunity for entrepreneurial profit. These facts support employee status; the shop reports compensation on Form W-2 and applies employment-tax withholding.
Common mistake: Issuing Form 1099-NEC does not establish contractor status. Reporting must follow the underlying relationship, including the business's actual right to control the work.
Official syllabus reference: [2]
27. Business rent and self-rental recharacterization
Business rent is generally deductible when it is an ordinary and necessary payment for property used in the business, subject to ownership, related-party, and capitalization rules. A payment that purchases an ownership interest is not automatically rent. When a taxpayer rents property to an activity in which the taxpayer materially participates, the self-rental rules can recharacterize net rental income as nonpassive. Net rental losses generally do not receive symmetrical automatic nonpassive treatment. This asymmetry matters when attempting to offset unrelated passive losses. Lease terms, actual use, payment timing, and any valid grouping election require separate examination.
Worked example: During 2025, an owner rents a personally owned warehouse to an operating business in which she materially participates. Net rental income may be nonpassive under the self-rental rule, preventing it from automatically absorbing losses from an unrelated passive investment.
Common mistake: Assuming self-rental income and self-rental losses receive identical recharacterization misses an important asymmetry in the passive activity rules.
Official syllabus reference: [2]
28. Depreciation elections, bonus timing, and depletion
Depreciation begins when qualifying property is placed in service, meaning ready and available for its intended use, rather than merely ordered or paid for. Asset class, business use, recovery period, convention, and method determine regular cost recovery. Section 179 and bonus depreciation have different eligibility, election, income-limit, and timing rules, so they are not interchangeable. For 2025, acquisition dates and effective-date provisions can materially change bonus treatment; apply the law through the examination cutoff. Land is not depreciable. Natural resource interests instead may qualify for cost or percentage depletion under separate property and income limitations.
Worked example: A business pays for equipment during 2025 but cannot install or operate it until 2026. Payment alone does not begin depreciation. For equipment actually placed in service in 2025, the preparer separately verifies acquisition timing and available expensing elections.
Common mistake: Selecting the largest immediate deduction without testing placed-in-service timing, qualification, and future recapture can produce an unsupported depreciation claim.
29. Startup costs, organization costs, and error correction
Startup expenditures generally precede an active trade or business and would otherwise resemble deductible operating expenses. Organizational costs relate to creating a corporation or partnership. Each category has its own immediate-deduction and amortization rules, and some formation costs, such as stock issuance or partnership syndication costs, are excluded from those categories. Amortization generally begins when the business becomes active, rather than when exploratory spending starts. Acquired assets use their own capitalization rules. Correcting a mathematical depreciation error can differ from changing an established impermissible depreciation method, which may require Form 3115 and a method-change adjustment.
Worked example: A 2025 startup pays for market research, legal formation documents, and machinery before opening. The preparer separates startup costs, organizational costs, and depreciable equipment, then begins the applicable recovery when operations commence and the equipment is placed in service.
Common mistake: Combining every preopening payment into one startup deduction ignores separate asset, organizational, issuance, and amortization rules.
Official syllabus reference: [2]
30. Business bad debts and receivable tax basis
A deductible bad debt requires a bona fide debt and tax basis in the amount becoming worthless. Accrual-method receivables previously included in income can supply basis; uncollected cash-method service fees generally do not. Business bad debts can receive ordinary treatment, and partial worthlessness may qualify when statutory requirements are met. Nonbusiness bad debts generally require complete worthlessness and receive short-term capital loss treatment. For an owner's loan, business connection and debt-versus-equity substance matter. A bookkeeping reserve does not itself establish a deduction. Evidence should support the debtor's obligation, collection circumstances, and the year of worthlessness.
Worked example: An accrual-method wholesaler included a $6,000 sale in 2024 income and establishes that the receivable becomes wholly worthless in 2025. Unlike an untaxed cash-method service invoice, that receivable has a tax basis that can support a bad-debt deduction.
Common mistake: Deducting a doubtful-account reserve merely because it reduces book profit confuses estimated credit risk with an allowable tax bad debt.
Official syllabus reference: [2]
31. Tax home, travel, meals, and business gifts
Business travel generally requires being away from the taxpayer's tax home long enough to require sleep or rest, with ordinary and necessary business purposes. A tax home ordinarily relates to the main business location, not simply a preferred family residence. Temporary assignments differ from indefinite relocations. Meals require separate qualification and limitation analysis, while entertainment generally does not become deductible merely because business is discussed. Business gifts have their own per-recipient limitation and incidental-cost rules. Mixed personal and business trips require allocation. Records should establish amount, timing, location, business purpose, and relevant relationships.
Worked example: A consultant travels from her main business city to a temporary client assignment during 2025 and adds a personal weekend. She separates business lodging and transport from personal costs, then applies the applicable meal limitation rather than deducting every trip charge uniformly.
Common mistake: Calling a destination trip business travel does not transform personal extensions, entertainment, and every meal into fully deductible expenses.
Official syllabus reference: [2]
32. Vehicle methods, commuting, and listed-property recapture
Business vehicle deductions require separating business travel from commuting and personal use. The standard mileage method and actual-expense method have different eligibility and switching rules; depreciation cannot simply be added again to a mileage deduction. Actual costs generally require a substantiated business-use allocation. Listed-property rules impose additional documentation and can limit accelerated recovery. A later drop in qualified business use can trigger recapture of prior accelerated deductions under the applicable rules. Mileage records should identify dates, destinations, business purposes, and distance. Use the correct year's supplied mileage rate rather than assuming a later rate applies.
Worked example: For a 2025 exercise, assume a permitted mileage rate of $0.60 and 4,000 substantiated business miles. The mileage component is $2,400. Home-to-regular-office commuting miles are excluded, and the taxpayer does not add separate depreciation to that mileage amount.
Common mistake: Multiplying all odometer miles by a business rate overstates the deduction when commuting and personal travel have not been removed.
Official syllabus reference: [2]
33. Interest tracing and insurance capitalization
Interest classification generally follows how borrowed proceeds are used, rather than the collateral securing the loan. Business, investment, and personal uses can therefore produce different deduction treatment within one borrowing. Business interest may encounter section 163(j) or other limitations, while construction-related interest can require capitalization. Insurance premiums also require classification: ordinary business coverage may be deductible, but prepaid coverage can require allocation, and certain life-insurance premiums are disallowed when the taxpayer is a beneficiary. Loan principal repayment is not interest expense. Trace fund uses and coverage periods before accepting the bookkeeping expense label.
Worked example: A proprietor borrows against a home during 2025 and uses the proceeds entirely to buy business equipment. The collateral does not automatically make the interest personal home interest; the preparer traces proceeds and tests business-interest limitations and any capitalization requirement.
Common mistake: Classifying interest solely by the asset pledged as security ignores the use-of-proceeds rules that generally determine its tax category.
Official syllabus reference: [2]
34. Business taxes, payroll deposits, and capital assessments
A tax payment's treatment depends on its nature and connection to the business. Employer payroll taxes can be deductible business costs, while employee withholding is a liability collected for others rather than an additional wage deduction. Sales tax on an acquired capital asset generally becomes part of asset cost; customer sales tax collected as an agent generally is not business revenue. Local assessments for improvements can require capitalization rather than current deduction. Federal income taxes and many government penalties are not deductible. Payroll deposit obligations follow their own timing rules and are not postponed until the income tax return is filed.
Worked example: In 2025, a business records gross wages of $20,000 and withholds $3,000 from employees. The full $20,000 is the wage amount; remitting the withholding reduces a liability. Separately paid employer payroll tax is analyzed as an additional business expense.
Common mistake: Deducting employee withholding again when deposited duplicates part of the gross wage deduction already recorded for the same compensation.
Official syllabus reference: [2]
35. Business casualties and involuntary conversions
Business casualty and theft computations require adjusted basis, the nature and extent of loss, insurance or other reimbursement, and any applicable special rules. Complete destruction of business property differs from partial damage and from personal-use casualty treatment. Reimbursement above adjusted basis can create gain even when the taxpayer experiences an economic disruption. A condemnation or qualifying involuntary conversion may permit gain deferral if replacement and timing requirements are satisfied. Deferred gain reduces replacement-property basis, preserving future tax consequences. Insurance proceeds are therefore not automatically tax-free, and repair expenditures do not by themselves determine the recognized loss or gain.
Worked example: A 2025 business asset with $18,000 adjusted basis is destroyed, and insurance pays $26,000. The $8,000 excess can create gain. If the taxpayer elects and satisfies an applicable involuntary-conversion replacement rule, recognition may be deferred through reduced replacement basis.
Common mistake: Treating every insurance recovery as reimbursement without tax consequences overlooks gain when proceeds exceed the converted property's adjusted basis.
Official syllabus reference: [2]
36. QBI, SSTBs, wages, and qualified property
The qualified business income deduction is an owner-level deduction based on eligible domestic business items, not a deduction that reduces the business's own gross receipts. QBI excludes specified investment items and certain compensation payments, and allocable owner deductions can reduce it. Depending on taxable income, limitations involving W-2 wages, unadjusted basis immediately after acquisition of qualified property, and specified service trades or businesses may apply. A separate taxable-income ceiling also matters. Industry classification affects SSTB analysis, but annual thresholds must match the tested year. Negative QBI carryovers can reduce a later year's deduction before final limitations.
Worked example: In a simplified 2025 problem, assume $50,000 adjusted QBI, a 20% component, and an $8,000 overall taxable-income ceiling. The preliminary component is $10,000, but the allowable deduction is $8,000 before considering any additional stated limitations.
Common mistake: Applying a percentage to Schedule C profit without owner-level adjustments, carryovers, or the taxable-income ceiling can overstate the QBI deduction.
Official syllabus reference: [2]
37. General business credits and deduction coordination
A credit generally reduces tax directly, while a deduction reduces the income on which tax is calculated. Many business incentives enter the general business credit system, where current-year use, carrybacks, and carryforwards depend on applicable limitations. Component credits have distinct eligibility and qualified-cost rules: research, disabled access, and small-employer health coverage are not interchangeable categories. Some credits require reducing a related deduction or asset basis to prevent a double tax benefit. Foreign tax credits follow their own classification and limitation rules. Determine the component credit first, then coordinate deductions and the final credit limitation.
Worked example: For a simplified 2025 exercise, assume a $3,000 eligible component credit but only $2,200 of current general business credit capacity. The business uses $2,200 currently and tracks the remaining $800 under the applicable carryover rules rather than deducting it automatically.
Common mistake: Deducting all qualifying costs and claiming a credit without checking required expense or basis reductions can duplicate a tax benefit.
Official syllabus reference: [2]
38. Net operating losses and carryover identity
A net operating loss is a tax-defined excess of allowable deductions over income after required modifications, not simply negative book profit. Carryback availability, carryforward duration, and taxable-income limitations depend on the year and type of loss, with special rules for categories such as farming losses. Pass-through entity losses generally reach owners, where basis and other restrictions apply before an owner-level NOL calculation. C corporations compute and carry their own NOLs. Ownership changes can restrict corporate loss use. Track each loss by origin year, taxpayer, adjustments, and amount previously absorbed rather than treating all losses as one unrestricted deduction.
Worked example: In a simplified 2025 problem, assume an available $60,000 NOL carryforward and a stated current deduction ceiling of $40,000. The taxpayer deducts $40,000 and retains $20,000, rather than wiping out taxable income merely because the carryforward exceeds the permitted ceiling.
Common mistake: Using a book loss directly as an NOL ignores tax adjustments and the distinct carryover restrictions attached to its origin year.
Official syllabus reference: [2]
39. Home office qualification and expense allocation
A qualifying home office generally requires exclusive and regular business use and an applicable principal-place, client-meeting, or separate-structure route. Certain storage and daycare situations have special exceptions to exclusive use. Administrative or management use can establish a principal place when no other fixed location handles substantial such work. Under the actual-expense method, direct office expenses differ from indirect whole-home costs allocated by a reasonable business-use measure. Depreciation and deduction limits require separate treatment. The simplified method uses a prescribed computation with its own conditions; it does not eliminate the underlying qualification requirements.
Worked example: In 2025, a designer devotes a qualifying 150-square-foot room within a 1,500-square-foot home exclusively to business. Under a reasonable area allocation, 10% of eligible indirect costs is considered, while an expense solely for repairing that office is analyzed as direct.
Common mistake: Claiming a room's business percentage despite routine family use can fail exclusive use before any expense calculation becomes relevant.
Official syllabus reference: [2]
40. Asset basis and conversion from personal use
An asset's basis generally begins with its tax cost and changes through capital improvements, depreciation, and other adjustments. Acquisition costs can include amounts beyond the invoice price, while ordinary repairs are not automatically capital additions. Property converted from personal to business use requires special basis rules: depreciation and loss calculations can use the lower of adjusted basis or fair market value at conversion, while gain calculations can preserve a different basis. This dual-basis possibility prevents deduction of preconversion personal decline. Gifts, inheritances, and related-party transfers have distinct basis regimes and should not be forced into a purchase-cost rule.
Worked example: In 2025, a taxpayer converts equipment with $12,000 personal adjusted basis and $8,000 conversion-date value to business use. Assuming the ordinary conversion rule applies, depreciation starts from $8,000, preventing recovery of the earlier $4,000 personal decline through business deductions.
Common mistake: Using original personal cost for every later depreciation and loss calculation can turn a nondeductible personal decline into a business deduction.
Official syllabus reference: [2]
41. Section 1231 netting and depreciation recapture
Disposition analysis first computes amount realized minus adjusted basis, then determines character. Depreciation recapture can reclassify gain as ordinary income before section 1231 netting. Section 1245 commonly applies to depreciable personal property, with recapture generally limited to the lesser of gain or relevant depreciation. Real property follows different recapture and gain-category rules. Remaining qualifying gains and losses enter section 1231 analysis, including the prior-loss lookback where applicable. Selling costs reduce amount realized, and depreciation allowed or allowable affects basis. A long holding period alone does not make every business-asset gain capital gain.
Worked example: A machine sold during 2025 produces $22,000 gain after basis adjustments. Assume $16,000 is subject to section 1245 recapture. That portion is ordinary income; the remaining $6,000 proceeds to the applicable section 1231 analysis rather than automatically receiving final capital treatment.
Common mistake: Classifying all gain from a long-held business asset as capital gain skips recapture and any required section 1231 lookback.
Official syllabus reference: [2]
42. Like-kind real estate exchanges and deferred gain
Section 1031 generally applies to qualifying real property held for business or investment, rather than personal residences, inventory, or ordinary equipment exchanges. A valid deferred exchange must satisfy identification, receipt, and intermediary-related requirements; selling property and later buying another parcel is not automatically sufficient. Cash, nonqualifying property, and liability differences can create boot and recognized gain. Replacement basis generally preserves unrecognized gain instead of resetting to market value. Distinguish realized gain, recognized gain, and deferred gain explicitly. Qualification comes before arithmetic: a mathematically correct basis calculation cannot rescue a transaction that fails the exchange requirements.
Worked example: In a simplified qualifying 2025 exchange, old basis is $60,000, replacement real estate is worth $95,000, and cash received is $5,000. Realized gain is $40,000, recognized gain is $5,000, and replacement basis remains $60,000 under the stated assumptions.
Common mistake: Assuming reinvesting all sale proceeds automatically creates a like-kind exchange overlooks transaction structure, qualifying property, and timing requirements.
Official syllabus reference: [2]
43. Repairs, improvements, and the unit of property
A business expenditure may be currently deductible as maintenance or require capitalization as an improvement. The analysis asks whether the expenditure betters the relevant unit of property, restores it, or adapts it to a new or different use. Defining the unit of property is essential, particularly for building systems. Cost alone does not settle the issue. Routine-maintenance, de minimis, and small-taxpayer provisions can provide relief when their specific requirements and elections are satisfied. Capitalized improvements are recovered under the applicable asset rules. Replacing a major component differs from fixing a minor part even when both invoices say repair.
Worked example: In 2025, a landlord replaces an entire building heating system while also repairing a small damaged door hinge. The heating-system work requires an improvement analysis, while the hinge repair may be current maintenance; identical invoice labels would not control either result.
Common mistake: Deducting every payment labeled repair ignores the unit of property and whether the work constitutes a betterment, restoration, or adaptation.
Official syllabus reference: [2]
44. Financial statements, book-tax schedules, and owner accounts
An income statement measures activity over a period, while a balance sheet reports assets, liabilities, and equity at a date. Beginning balances should reconcile with the prior year's ending records; asset additions, depreciation, debt movements, and distributions explain changes. Schedules M-1 or M-3 reconcile book and tax income, whereas M-2 addresses the relevant equity or tax-account movements for the entity. Owner loans require genuine debt evidence and correct balance-sheet classification. Personal payments from business accounts may be distributions, compensation, or receivables rather than expenses. Industry codes and year-to-year comparisons help identify inconsistent classifications and unexplained changes.
Worked example: A corporation's 2025 books show a shareholder's vacation payment as travel expense. The preparer removes the unsupported business deduction and determines its proper owner-account treatment, then checks that cash, shareholder balances, taxable income, and the relevant reconciliation schedules remain consistent.
Common mistake: Forcing a balance sheet to balance with an unexplained owner-loan entry conceals the transaction rather than establishing its correct tax treatment.
Official syllabus reference: [2]
45. Related-party loss disallowance and payment timing
Related-party provisions can alter otherwise ordinary tax consequences because common ownership makes timing and pricing easier to control. A loss on a sale between specified related parties can be disallowed, with possible later adjustments under the governing rules rather than an immediate deduction. An accrual-method payer may have to defer certain expenses owed to a related cash-method recipient until the recipient includes the payment. Attribution determines who is related, so direct ownership alone is insufficient. Loan terms, compensation, rent, and transfers require substantive pricing and characterization. Separate entities do not eliminate related-party restrictions.
Worked example: During 2025, an accrual-method corporation accrues unpaid compensation owed to a related cash-method owner. Before deducting the accrual, the preparer tests the related-party timing rule and whether the owner has actually included the amount in income.
Common mistake: Assuming an accrued expense is deductible because the recipient is legally separate ignores ownership attribution and related-party matching provisions.
Official syllabus reference: [2]
46. Cash receipts and contractor information returns
Cash-receipt reporting and service-payment reporting address different business events. Form 8300 concerns qualifying cash received in a transaction or related transactions; Form 1099-NEC generally concerns reportable compensation paid to nonemployees. Analyze the recipient, payment purpose, payment method, aggregation rules, and applicable exceptions for each obligation. Currency counts as cash, while other payment instruments require classification under the reporting rules. For contractor payments, obtain taxpayer identification information and distinguish direct payments from payment-card transactions. A deductible expense and an information-return filing obligation require separate determinations.
Worked example: In 2025, assume reporting triggers of over $10,000 cash and at least $600 for contractor services. A shop receives $14,000 currency for one sale and pays a sole-proprietor repairer $900 by check. With no exceptions, it files Form 8300 for the receipt and Form 1099-NEC for the service payment.
Common mistake: Netting contractor payments against customer cash receipts understates reportable receipts and confuses two independent information-reporting obligations.
Official syllabus reference: [2]
47. Real estate ownership and business exit planning
Choosing who owns business real estate affects operating arrangements and the eventual exit. A C corporation generally recognizes gain when it sells appreciated real estate, and distributing the proceeds can create additional shareholder consequences. Distributing the appreciated property itself can also trigger corporate gain. Personal ownership with a lease to the operating corporation places a later property sale at the owner's level, although rent, related-party rules, liability protection, and succession still require analysis. Compare formation, annual operation, and disposal together before transferring property into an entity.
Worked example: For 2025, assume land has $120,000 basis and sells for $300,000. Corporate ownership produces $180,000 gain taxable to the C corporation before shareholder distribution consequences. Personal ownership with a market-rate lease to the corporation produces $180,000 gain taxable to the owner; the corporation recognizes no land-sale gain.
Common mistake: An initially tax-deferred contribution does not establish an efficient exit. Appreciated real estate inside a C corporation can create tax costs upon later removal.
Official syllabus reference: [2]
SPECIALIZED RETURNS AND TAXPAYERS
48. Grantor, simple, complex, and foreign trusts
Grantor trust rules can attribute trust income to an owner even when legal title rests with a trustee. Nongrantor trusts are separate income tax entities, and simple-versus-complex treatment depends on governing terms and annual distribution facts. Irrevocability does not by itself resolve either classification. Domestic-versus-foreign status uses separate tests and can introduce substantial reporting duties. Trust arrangements do not erase compensation earned by an individual or convert personal expenses into deductions. Fraudulent trust claims often ignore these assignment-of-income and ownership rules. Begin by identifying tax ownership, then classification, income, distributions, and any international information obligations.
Worked example: In 2025, a consultant directs clients to pay a trust but retains the relevant ownership powers and continues earning the fees personally. The arrangement's documents do not establish income shifting; grantor and assignment-of-income rules must be applied to the actual facts.
Common mistake: Assuming an irrevocable trust automatically becomes a separate taxpayer and shelters the creator's earned income confuses several distinct classification rules.
Official syllabus reference: [2]
49. Fiduciary accounting income, DNI, and beneficiary character
Fiduciary accounting income determines rights between income beneficiaries and principal under the governing instrument and applicable law. Taxable income follows federal tax rules, while distributable net income limits and characterizes much of the income carried out to beneficiaries. These measures therefore can differ. Capital gains commonly remain allocated to corpus and taxed to the trust unless governing rules and administration permit their inclusion in distributions and DNI. Tax-exempt income can enter DNI with related expense adjustments. Schedule K-1 generally preserves relevant income character, preventing a distribution from becoming one undifferentiated category merely because cash was paid.
Worked example: For a simplified 2025 trust, assume DNI consists of $8,000 taxable interest and $2,000 tax-exempt interest, with no expenses. If the full DNI is carried out, the beneficiary generally receives those respective characters rather than reporting all $10,000 as taxable interest.
Common mistake: Equating cash distributed with taxable beneficiary income ignores DNI limits, retained capital gains, and the preserved character of distributed items.
Official syllabus reference: [2]
50. Form 1041 deductions, tax years, and estate income
Estates and nongrantor trusts may file Form 1041 when their filing conditions are met. A decedent's final individual return differs from the estate's post-death income return, and income in respect of a decedent retains special treatment. Trusts generally use calendar years, while estates can have additional fiscal-year choices; certain elections affect coordination. Fiduciary administration expenses, personal exemptions, charitable deductions, and distribution deductions each have specific requirements. Expenses cannot simply be deducted twice across estate and income tax systems. Filing extensions do not ordinarily eliminate payment duties, and beneficiary reporting must reconcile with the fiduciary return.
Worked example: A decedent dies during 2025, and the estate later collects interest earned after death. The executor separates that estate income from the decedent's final individual return and evaluates the estate's accounting period, deductible administration costs, and any beneficiary distribution reporting.
Common mistake: Putting all receipts collected after death on the final individual return overlooks the estate's separate income and special post-death receipt rules.
Official syllabus reference: [2]
51. Exempt purposes, private benefit, and exemption applications
Tax exemption depends on qualifying organization and operations, not merely nonprofit incorporation. A charitable organization must pursue qualifying exempt purposes and avoid prohibited private inurement, while private benefit, political campaign activity, and lobbying restrictions require their own analysis. Application forms depend on the exemption category: Form 1023 serves section 501(c)(3) recognition, while other categories may use Form 1024 or another prescribed route. Recognition does not excuse unrelated business tax or ongoing filing obligations. Changes in activities, insider compensation, or asset use can jeopardize compliance even when the original application accurately described a qualifying mission.
Worked example: A nonprofit formed in 2025 proposes paying its founder for management services. The board documents actual duties, comparable compensation, and approval procedures because nonprofit incorporation does not make every insider payment permissible or establish federal exemption by itself.
Common mistake: Treating nonprofit status as permission to distribute surplus to insiders conflicts with the operational restrictions attached to charitable exemption.
Official syllabus reference: [2]
52. Donated merchandise, commercial services, and unrelated income
An exempt organization evaluates each revenue activity for unrelated business income. A regularly conducted commercial service may generate unrelated income when it does not substantially advance the exempt purpose. Spending its profits on charitable programs does not supply that connection. Sales of merchandise substantially all received as gifts or contributions can qualify for a statutory exception, even when a separate service activity remains taxable. Allocate directly connected expenses to the appropriate activity, apply relevant deductions and modifications, and evaluate Form 990-T filing separately from the organization's annual exempt-organization information return.
Worked example: For 2025, a museum earns $20,000 selling entirely donated goods and $5,000 from regular commercial scanning unrelated to its mission, with $3,500 scanning expenses. Assume a $1,000 gross-income filing trigger and $1,000 specific deduction. Donated sales are excluded; scanning yields $1,500 net, $500 taxable after that deduction, and requires Form 990-T.
Common mistake: Treating every fundraising activity alike overlooks statutory exceptions. Donated-merchandise sales and unrelated commercial services can have different tax and filing consequences.
Official syllabus reference: [2]
53. Qualified plans, nondiscrimination, and reporting
Qualified retirement plans obtain tax benefits only by meeting applicable design and operational requirements. These can include eligibility, vesting, contribution limits, coverage, and nondiscrimination tests designed to prevent improper concentration of benefits among favored employees. A written plan can still fail if operated inconsistently. Nonqualified deferred compensation follows a different framework and does not automatically provide the same deduction timing or asset protection. Plan reporting, including applicable Form 5500-series filings, is separate from claiming an employer deduction. Employee elective deferrals and employer contributions must be distinguished because their timing, limits, and correction rules can differ.
Worked example: A 2025 employer excludes eligible rank-and-file employees while contributing for owners under a purported qualified plan. The preparer identifies a coverage or operational problem rather than assuming the signed plan document alone guarantees qualification and deductible employer contributions.
Common mistake: Relying only on a plan's favorable name or document ignores whether actual employee coverage and contributions satisfy qualification requirements.
Official syllabus reference: [2]
54. SEP and SIMPLE contributions for self-employed owners
SEP and SIMPLE arrangements differ in who contributes, employer funding obligations, eligibility, and administration. A standard SEP generally uses employer contributions, while a SIMPLE IRA includes employee salary-reduction contributions and prescribed employer contributions. For a self-employed owner, the contribution base is not simply gross receipts or unadjusted Schedule C profit: applicable self-employment adjustments and the owner's own contribution require a coordinated calculation. An employer contribution rate can therefore translate into a different effective rate on adjusted self-employment earnings. Annual limits, establishment deadlines, and deduction timing must use the tested year's rules and the specific plan type.
Worked example: For a simplified 2025 SEP exercise, assume adjusted earnings before the owner's contribution are $50,000 and the stated formula is contribution equals 20% of those earnings. The contribution is $10,000; gross sales are irrelevant to that supplied calculation.
Common mistake: Applying an employee contribution percentage directly to a proprietor's gross receipts ignores both business expenses and the special self-employed contribution computation.
Official syllabus reference: [2]
55. Prohibited transactions and disqualified persons
Retirement assets are held for permitted retirement purposes rather than unrestricted personal use. Transactions involving disqualified persons can be prohibited even when the price appears fair. Examples can include self-dealing sales, lending, use of plan assets for personal benefit, or compensation arrangements that violate applicable rules. Plan loans are not universally prohibited, but they require a plan and transaction that meet the governing conditions; an IRA follows different restrictions. Consequences depend on the arrangement and transaction and may include excise taxes or loss of favorable account treatment. Economic fairness alone does not establish a statutory exemption.
Worked example: In 2025, an IRA owner proposes selling personally owned equipment to the IRA at an independently appraised price. The appraisal does not resolve the prohibited-transaction issue because the owner's relationship to the account is itself central to the restriction.
Common mistake: Believing an arm's-length price makes every retirement-account transaction permissible overlooks restrictions based on the parties and personal benefit.
Official syllabus reference: [2]
56. Crop insurance proceeds and income deferral
A cash-method farmer may elect to postpone qualifying crop insurance proceeds attributable to crop damage when normal business practice would have placed income from the damaged crop in the following year. Establish both the physical crop loss and the customary sales pattern; receiving insurance near year-end is insufficient. Payments based solely on revenue changes require separate analysis because they may lack the necessary damage connection. The election generally covers eligible proceeds from the same farming business and requires a supporting statement. Preserve sales histories, insurance documents, and the calculation supporting the deferred amount.
Worked example: A cash-method farmer receives $30,000 in 2025 insurance proceeds solely for hail damage to the 2025 corn crop. Records show that, consistently, 90% of each corn crop is sold the following year. With all other requirements satisfied, a timely election defers the entire $30,000 to 2026.
Common mistake: Insurance proceeds are not automatically deferred until replacement crops are sold. Eligibility depends on crop damage, customary income timing, and a valid election.
Official syllabus reference: [2]
57. Farm asset basis, breeding livestock, and weather relief
Farm asset treatment depends on use and how costs were recovered. Purchased breeding or dairy livestock can be depreciable business property, while livestock held for sale follows inventory or other applicable farm accounting rules. Raised animals may have little or no basis when their raising costs were deducted. Land is not depreciable, and improvements require separate classification. Weather-related forced livestock sales can implicate income-deferral or involuntary-conversion provisions with different eligibility and replacement requirements. Distinguish ordinary operating sales from dispositions of productive assets before analyzing gain character, depreciation recapture, and any disaster relief.
Worked example: During 2025, a farmer sells purchased breeding cattle and separately sells market calves. The preparer uses adjusted basis and possible recapture analysis for the breeding animals, while treating the calves under the farm's ordinary sales and cost-accounting rules.
Common mistake: Reporting every livestock sale identically overlooks whether the animal was inventory, raised property, or a depreciable productive asset.
Official syllabus reference: [2]
58. Farm rentals, income averaging, and self-employment
Farm rental reporting depends on the payment arrangement and the owner's participation. Cash rent generally differs from crop-share arrangements, and material participation can affect whether income is subject to self-employment tax and whether Schedule F or Form 4835 is appropriate. Schedule J farm income averaging can spread eligible elected farm income across prior-year tax computations under its specific rules; it does not simply average gross receipts or erase self-employment tax. Farmers can also have special estimated-tax provisions when qualification requirements are met. Determine income category and participation first, then compute income tax, self-employment tax, and payment obligations separately.
Worked example: A landowner receives a crop share in 2025 but does not materially participate in production or management. The preparer evaluates Form 4835 reporting and passive treatment instead of assuming crop-share receipts automatically belong on Schedule F with self-employment tax.
Common mistake: Assuming farm income averaging also averages self-employment tax confuses an income tax computation mechanism with a separate tax system.
Official syllabus reference: [2]
59. Rental receipts, vacation use, and cost recovery
Advance rent generally becomes rental income when received, while a refundable security deposit ordinarily remains a liability until retained or applied as rent. Mixed personal and rental use requires day classification, expense allocation, and possible dwelling-unit limitations. Below-market family use can count as personal use under the applicable rules. Residential and nonresidential real property generally have different depreciation recovery periods, while land remains nondepreciable. Repairs and capital improvements require separate analysis rather than blanket rental-expense treatment. For property not rented for profit, income and deductions follow different restrictions from a genuine rental business or investment activity.
Worked example: In 2025, a landlord receives $2,000 advance rent and a separately documented $1,500 refundable deposit. The rent is generally current income; the deposit is not automatically income. If part is later retained for damage, its treatment is evaluated when retention occurs.
Common mistake: Reporting every tenant receipt as rent ignores refundable deposits, while ignoring advance rent improperly postpones income already received.
Official syllabus reference: [2]
60. Real estate professionals and passive rental losses
Rental real estate is generally passive even when the owner participates, unless an applicable exception changes that result. Qualifying as a real estate professional requires satisfying separate statutory personal-service tests, but qualification alone does not make every rental nonpassive: material participation in the relevant activity still matters. Grouping elections can affect that activity analysis. A special rental allowance may permit some actively participating taxpayers to deduct losses, subject to ownership and income restrictions. Basis and at-risk rules apply before passive limitations. Suspended passive losses require tracking and can become usable through passive income or a qualifying complete disposition.
Worked example: In 2025, an owner meets the real estate professional requirements but does not materially participate in one separately analyzed rental. That property's loss does not automatically become nonpassive; the preparer must evaluate participation and any valid grouping election for the relevant activity.
Common mistake: Treating real estate professional status as a blanket exemption from passive loss rules overlooks the separate material-participation requirement.
Official syllabus reference: [2]