Use this guide to connect tax rules with the facts that determine their application. Begin with individual and business taxation, then work through property transactions, estates and trusts, retirement arrangements, and tax practice. Each concept includes an original example with a resolved result. Calculations assume the stated facts and eligibility conditions; apply the law and limitations for the tax year tested by your examination.
Tax foundations and individual returns
1. The sequence from income to tax
An individual income tax calculation moves through distinct stages: income, adjustments, adjusted gross income, deductions, taxable income, tax, credits, and payments. A figure belongs at its proper stage. This sequence explains why two items with the same dollar amount can affect the final balance differently.
Worked example: Assume $64,000 of income, $4,000 of allowable adjustments, and $15,000 of allowable deductions. Adjusted gross income is $60,000, and taxable income is $45,000.
Mistake to avoid: Subtracting withholding when calculating taxable income; withholding is a tax payment.
Exam context reference: Enrolled agent news | Internal Revenue Service
2. Deductions and credits
A deduction reduces the income used to calculate tax. A credit reduces tax itself, subject to its eligibility and refundability rules. The value of a deduction depends on the applicable tax rate and other interactions; an allowable credit generally offsets tax dollar for dollar until its limits apply.
Worked example: Assuming a constant 22% marginal rate, a $1,000 deduction saves $220. A fully usable $1,000 credit reduces tax by $1,000.
Mistake to avoid: Treating a deduction's face amount as an equal reduction in tax.
Exam context reference: Enrolled agent news | Internal Revenue Service
3. Marginal and effective tax rates
The marginal rate describes tax on an additional increment of taxable income. An effective rate compares total tax with a specified income measure. Progressive brackets apply different rates to different portions of income; entering a higher bracket does not subject all earlier income to that higher rate.
Worked example: In a hypothetical system, the first $20,000 is taxed at 10% and the next $10,000 at 20%. Tax is $4,000, making the effective rate on $30,000 approximately 13.33%.
Mistake to avoid: Applying the highest bracket rate to the taxpayer's entire income.
Exam context reference: Enrolled agent news | Internal Revenue Service
4. Filing status follows qualifying facts
Filing status depends on marital status and qualifying household circumstances, not simply the taxpayer's preferred tax result. Head of household requires its own conditions, including household costs and a qualifying person, with special rules for some relatives. Establish the facts before comparing available filing statuses.
Worked example: An unmarried taxpayer pays $7,000 of a household's $12,000 annual costs. That exceeds half, but head of household still requires a qualifying person and satisfaction of the other conditions.
Mistake to avoid: Assuming every unmarried parent automatically qualifies as head of household.
Exam context reference: Enrolled agent news | Internal Revenue Service
5. Qualifying child and qualifying relative
Dependency analysis uses separate qualifying-child and qualifying-relative frameworks. Relationship, residence, age, income, and support matter differently under each framework. For example, a qualifying child generally must not provide more than half of their own support; a qualifying relative generally requires the claimant to provide more than half, subject to exceptions.
Worked example: An adult sibling has $10,000 of support. Paying $6,000 satisfies the general majority-support condition, but dependency still requires the applicable income and other tests.
Mistake to avoid: Using one support test interchangeably for both dependency categories.
Exam context reference: Enrolled agent news | Internal Revenue Service
6. Income, loans, and transfers
Receiving money does not by itself establish taxable income. Compensation, borrowing, gifts, and returns of invested capital have different tax consequences. A genuine loan creates a repayment obligation, while compensation pays for services. Examine the transaction's substance and documentation before deciding how to report the receipt.
Worked example: Nora receives a $5,000 documented bank loan and $5,000 for consulting. The consulting payment is business revenue; the loan proceeds generally are not income.
Mistake to avoid: Classifying every bank deposit as taxable revenue without identifying its source.
Exam context reference: Enrolled agent news | Internal Revenue Service
7. Constructive receipt
For a cash-method taxpayer, income can be received constructively when it is credited or made available without substantial restrictions. Physical possession is not always necessary. Conversely, an amount the taxpayer cannot actually access because of a substantial restriction is not automatically received merely because it has been promised.
Worked example: A client places an unrestricted payment in a consultant's accessible account in December. Waiting until January to withdraw it does not move the income into January.
Mistake to avoid: Using the withdrawal date when funds were already freely available.
Exam context reference: Enrolled agent news | Internal Revenue Service
8. Adjusted gross income and modified income
Adjusted gross income is a defined stage in the individual return calculation. Modified adjusted gross income is not one universal figure: particular benefits may require different additions or exclusions. Use the definition attached to the specific deduction or credit rather than transferring a modified-income calculation from another provision.
Worked example: AGI is $48,000. If a particular provision requires adding back a $2,000 deduction, modified income for that provision is $50,000.
Mistake to avoid: Assuming every reference to modified adjusted gross income uses the same adjustments.
Exam context reference: Enrolled agent news | Internal Revenue Service
9. Standard and itemized deductions
The standard deduction and itemized deductions are alternative methods for determining this portion of an individual's deductions, subject to eligibility rules. Compare allowable itemized amounts after their restrictions with the applicable standard deduction. Separate adjustments to income do not disappear merely because the taxpayer uses the standard deduction.
Worked example: Assume a taxpayer may choose a $16,000 standard deduction or $14,500 of allowable itemized deductions. The standard deduction reduces taxable income by an additional $1,500.
Mistake to avoid: Adding the standard deduction to itemized deductions on the same return.
Exam context reference: Enrolled agent news | Internal Revenue Service
10. Refundable and nonrefundable credits
A nonrefundable credit generally reduces the tax it is permitted to offset only to zero. A refundable credit can produce an additional payment even when that tax is already zero. Some credits contain both components. Refundability does not remove eligibility, income, documentation, or other statutory restrictions.
Worked example: Assume $700 of tax and an $1,100 fully eligible credit. If wholly nonrefundable with no carryover, it offsets $700; if wholly refundable, it also produces $400 beyond that tax.
Mistake to avoid: Assuming an unused nonrefundable credit automatically becomes a refund.
Exam context reference: Enrolled agent news | Internal Revenue Service
11. Tax liability and payments
Withholding and estimated payments are prepayments, not deductions from income. Compare payments and applicable refundable credits with total tax to determine a balance due or overpayment. An eventual refund does not by itself establish that estimated-payment requirements were satisfied throughout the year; timing can matter separately.
Worked example: Total tax is $9,400, withholding is $7,900, and estimated payments are $1,200. The remaining balance is $300, before any other adjustments.
Mistake to avoid: Treating a refund as proof that no payment-timing issue could exist.
Exam context reference: Enrolled agent news | Internal Revenue Service
12. Employee wages and self-employment income
Worker classification depends on the underlying relationship, including control and independence, rather than the document's title alone. Employee wages and net self-employment earnings follow different reporting and employment-tax paths. For a genuine independent business, deductible business expenses reduce net profit; gross customer receipts are not automatically net earnings.
Worked example: A genuine sole proprietor collects $18,000 and incurs $5,000 of deductible operating costs. Business profit is $13,000 before further applicable tax adjustments.
Mistake to avoid: Assuming a payment labeled contractor income conclusively establishes independent-contractor status.
Exam context reference: Enrolled agent news | Internal Revenue Service
Business taxation and accounting
13. Legal form and federal tax classification
An entity's state-law form does not always determine its federal tax treatment. An LLC, for example, may have different federal classifications depending on ownership and valid elections. Identify the applicable classification before choosing a return or analyzing how income reaches owners; limited liability alone does not establish corporate taxation.
Worked example: A domestic single-owner LLC with no corporate election is generally disregarded for federal income tax. Its individual owner's operating business normally follows sole-proprietor income reporting.
Mistake to avoid: Assuming every LLC files the same federal income tax return.
Exam context reference: Enrolled agent news | Internal Revenue Service
14. Sole-proprietor drawings
A sole proprietor's withdrawal of business cash for personal use generally does not create a deductible business expense. Taxable business profit depends on revenue and allowable expenses, not the amount left in the bank. Similarly, an owner's cash contribution generally supplies capital rather than customer revenue.
Worked example: Revenue is $52,000 and deductible expenses are $31,000. Profit is $21,000 even if the owner withdraws $15,000 for personal bills.
Mistake to avoid: Deducting owner drawings as wages paid to the sole proprietor.
Exam context reference: Enrolled agent news | Internal Revenue Service
15. Ordinary and necessary business expenses
A business deduction generally requires an ordinary and necessary expense connected with the business, subject to specific restrictions. Personal costs remain personal even when paid from a business account. Mixed expenses require a supported allocation, and satisfying the business-purpose test does not override capitalization or other deduction limitations.
Worked example: A $1,200 service expense has documented 75% business use and 25% personal use. Assuming no other restriction, the business portion is $900.
Mistake to avoid: Claiming the full payment merely because the business bank account paid it.
Exam context reference: Enrolled agent news | Internal Revenue Service
16. Repairs and capital improvements
Repair and maintenance costs may be currently deductible, while costs that better, restore, or adapt property generally require capitalization. The classification depends on the applicable unit of property and the work performed. A large bill is not automatically capital, and a small bill is not automatically deductible.
Worked example: Replacing an entire worn-out commercial roof generally restores a major building component and requires capitalization. Paying to patch an isolated leak may instead be maintenance.
Mistake to avoid: Using price alone to distinguish a repair from an improvement.
Exam context reference: Enrolled agent news | Internal Revenue Service
17. Cash and accrual accounting
Cash and accrual methods can recognize transactions in different periods. Cash accounting generally follows receipts and payments, subject to exceptions. Accrual accounting applies income and expense recognition tests, including economic performance where required. An unpaid invoice therefore does not have one universal tax treatment across all businesses.
Worked example: An unrestricted service fee is earned and billed in December but collected in January. If recognition conditions are met, an accrual business reports December income; a cash business generally reports January income.
Mistake to avoid: Applying cash-method timing to a business using accrual accounting.
Exam context reference: Enrolled agent news | Internal Revenue Service
18. Inventory and cost of goods sold
Inventory accounting distinguishes merchandise available for sale from merchandise actually sold. In a simplified inventory calculation, cost of goods sold equals beginning inventory plus purchases minus ending inventory. Goods remaining on hand generally retain their cost in inventory rather than becoming a second deduction; special methods and capitalization rules require separate consideration.
Worked example: Beginning inventory is $8,000, purchases are $27,000, and ending inventory is $11,000. Cost of goods sold is $24,000.
Mistake to avoid: Deducting all purchases and also deducting the same costs through cost of goods sold.
Exam context reference: Enrolled agent news | Internal Revenue Service
19. Book income and taxable income
Financial-accounting income and taxable income can differ because tax law treats particular items differently or recognizes them in different periods. Permanent differences do not reverse; temporary differences generally do. A reconciliation identifies each difference rather than assuming that the financial statements already supply the final taxable figure.
Worked example: Book profit is $40,000 after a $2,000 expense that the scenario specifies is permanently nondeductible. With no other differences, taxable income is $42,000.
Mistake to avoid: Reporting book profit without examining tax adjustments.
Exam context reference: Enrolled agent news | Internal Revenue Service
20. Depreciation and basis recovery
Depreciation allocates recovery of qualifying property costs under the applicable tax method. Depreciable basis, placed-in-service date, business use, and property classification affect the calculation. Basis generally decreases by depreciation allowed or allowable, so failing to claim a permitted deduction does not necessarily preserve that basis for a later sale.
Worked example: A machine starts with $20,000 of basis and has $6,000 of cumulative allowed or allowable depreciation. Its adjusted basis is $14,000, assuming no other adjustments.
Mistake to avoid: Keeping original cost as basis after depreciation has become allowable.
Exam context reference: Enrolled agent news | Internal Revenue Service
21. Gross wages and payroll liabilities
Gross wages, employee withholding, net pay, and employer payroll costs are separate amounts. Employee amounts withheld become liabilities to remit; they are not a reduction in gross wage expense. Employer payroll taxes may create additional expense. Accurate payroll accounting prevents both understated wages and duplicate deductions.
Worked example: Gross wages are $4,000 and employee deductions total $900. Record $4,000 of wages, $3,100 of net cash pay, and $900 of related liabilities.
Mistake to avoid: Recording only net pay as wage expense or deducting withholding twice.
Exam context reference: Enrolled agent news | Internal Revenue Service
22. Partnership income and distributions
A partner's allocated taxable income and cash distributions are different events. Pass-through income can be taxable even when the partnership retains its cash. Distributions generally affect outside basis and may have additional consequences, particularly when cash exceeds basis. Allocation validity and separately stated items must also be considered.
Worked example: A partner begins with $12,000 of outside basis, receives $8,000 of allocated income, and takes a $5,000 cash distribution. Assuming no other changes, ending basis is $15,000.
Mistake to avoid: Reporting only the cash distributed as the partner's taxable income.
Exam context reference: Enrolled agent news | Internal Revenue Service
23. S corporation loss basis
An S corporation shareholder's loss deduction first requires sufficient stock basis and qualifying debt basis. An amount appearing on Schedule K-1 is not automatically deductible. Basis-limited losses may be suspended, and additional at-risk and passive-activity restrictions can apply even after the basis requirement is satisfied.
Worked example: A shareholder has $6,000 of stock basis, no qualifying debt basis, and an $8,000 loss. The basis limitation permits at most $6,000 before other limitations; $2,000 remains suspended.
Mistake to avoid: Treating a personal guarantee alone as established shareholder debt basis.
Exam context reference: Enrolled agent news | Internal Revenue Service
24. C corporation and shareholder taxation
A C corporation generally calculates its income tax separately from its shareholders. Corporate distributions are then analyzed under earnings-and-profits and shareholder-basis rules. A distribution can be dividend income, basis recovery, or gain depending on the facts; financial-accounting retained earnings are not automatically equivalent to tax earnings and profits.
Worked example: A corporation pays a shareholder $3,000. Assuming sufficient earnings and profits, the distribution is generally a dividend rather than a deductible corporate expense.
Mistake to avoid: Subtracting shareholder dividends when calculating the corporation's taxable income.
Exam context reference: Enrolled agent news | Internal Revenue Service
Property transactions and loss limitations
25. Adjusted basis
Adjusted basis measures unrecovered tax investment in property. Begin with the applicable initial basis, then account for capital additions, depreciation, and other required adjustments. Basis is not necessarily market value or outstanding debt. Keeping an adjustment history is essential because the same asset can have different book and tax carrying amounts.
Worked example: Property costs $30,000, receives a $4,000 capital improvement, and has $9,000 of basis reductions. Adjusted basis is $25,000.
Mistake to avoid: Replacing tax basis with an appraisal merely because market value changed.
Exam context reference: Enrolled agent news | Internal Revenue Service
26. Amount realized and gain
Gain or loss generally compares amount realized with adjusted basis. Amount realized can include cash, property received, and relevant debt relief, reduced by qualifying selling costs. The resulting gain calculation is separate from determining whether recognition is deferred, excluded, or subject to a particular tax character.
Worked example: A sale produces $40,000 of proceeds and $2,000 of selling costs. With $25,000 adjusted basis and no other consideration, realized gain is $13,000.
Mistake to avoid: Calculating gain from cash received without considering selling costs or debt relief.
Exam context reference: Enrolled agent news | Internal Revenue Service
27. Holding period and capital character
For a capital asset, holding period helps distinguish short-term from long-term gain or loss. Property generally must be held more than one year for long-term treatment. First establish that the asset is a capital asset; inventory and certain business property require different analysis. Special acquisition rules may alter the ordinary holding-period calculation.
Worked example: An investor buys stock on May 10 of one year and sells on May 11 of the next. Under the ordinary holding-period rules, the holding exceeds one year.
Mistake to avoid: Assuming every asset sold after one year produces ordinary long-term capital gain.
Exam context reference: Enrolled agent news | Internal Revenue Service
28. Personal-use gains and losses
A sale of personal-use property can create taxable gain, but an ordinary personal-use sale loss generally is not deductible. This asymmetry differs from investment-property treatment. Special statutory rules, such as those governing a qualifying home sale, require separate eligibility analysis and should not be extended to unrelated personal belongings.
Worked example: A personal bicycle purchased for $1,800 sells for $700. The $1,100 economic loss generally produces no income tax deduction.
Mistake to avoid: Deducting a personal sale loss because an identical investment loss might receive different treatment.
Exam context reference: Enrolled agent news | Internal Revenue Service
29. Depreciation recapture
A gain on depreciated property may require ordinary-income treatment for some or all of the gain under applicable recapture rules. Computing total gain does not finish the analysis. Asset type, depreciation history, and statutory character rules determine how gain is classified; different rules apply to different categories of property.
Worked example: Equipment costs $18,000, has $10,000 of depreciation, and sells for $12,000. Adjusted basis is $8,000; the $4,000 gain is generally ordinary under the applicable equipment recapture rule.
Mistake to avoid: Calling all gain capital merely because the equipment was held for several years.
Exam context reference: Enrolled agent news | Internal Revenue Service
30. Wash sales
A loss on stock or securities can be disallowed when substantially identical property is acquired within the statutory wash-sale window. In a straightforward taxable-account replacement, the disallowed loss generally increases replacement basis, postponing recognition. Partial replacements and retirement-account transactions can produce different consequences and require separate analysis.
Worked example: An investor sells shares at a $600 loss and repurchases the same number of identical shares in a taxable account ten days later. The $600 generally becomes replacement-basis adjustment.
Mistake to avoid: Checking only purchases after the sale; purchases before it can also trigger the rule.
Exam context reference: Enrolled agent news | Internal Revenue Service
31. Capital gain and loss netting
Capital transactions are first organized by their applicable character and holding period. Net short-term amounts and net long-term amounts are then combined under the netting rules. A remaining capital loss may face an annual deduction limitation and carryforward treatment; it is not automatically an unrestricted offset against wages.
Worked example: Assume a $4,000 net short-term gain and a $1,500 net long-term loss. Combining them leaves a $2,500 net short-term gain.
Mistake to avoid: Ignoring holding-period categories and taxing each sale in isolation.
Exam context reference: Enrolled agent news | Internal Revenue Service
32. Passive activity restrictions
Passive-activity rules can postpone otherwise allowable losses when the taxpayer lacks sufficient passive income. Material participation matters for many business activities; rental activities have additional rules and exceptions. Passive characterization is distinct from whether an expense is deductible in principle, and suspended losses require continued tracking.
Worked example: Assume an activity is passive, produces a $7,000 loss, and the taxpayer has $2,000 of usable passive income. With no exception, $5,000 is suspended.
Mistake to avoid: Assuming any active effort automatically establishes material participation or permits a rental loss.
Exam context reference: Enrolled agent news | Internal Revenue Service
33. At-risk limitations
The at-risk rules examine the economic amount a taxpayer genuinely has exposed to loss in an activity. Tax basis and amount at risk can differ, especially with financing. Apply relevant basis restrictions before at-risk restrictions, then consider passive restrictions. Certain qualified nonrecourse financing has special treatment, so liability labels alone are insufficient.
Worked example: Assume a $9,000 loss passes the basis test but the taxpayer has only $4,000 at risk. At most $4,000 proceeds to the next limitation; $5,000 is suspended.
Mistake to avoid: Assuming all debt included in tax basis necessarily increases the amount at risk.
Exam context reference: Enrolled agent news | Internal Revenue Service
Estates, gifts, and trusts
34. Transfer taxes and income taxes
Estate and gift taxes concern transfers of wealth, while income tax concerns taxable income. An estate or trust may also earn income and have its own income-reporting obligations. These systems can interact, but they ask different questions; the absence of transfer tax does not establish that subsequent income is tax-free.
Worked example: A beneficiary receives inherited cash and later earns $900 of bank interest on it. The inheritance generally is not income, but the subsequent interest generally is.
Mistake to avoid: Treating all receipts connected with an inheritance as permanently exempt income.
Exam context reference: Enrolled agent news | Internal Revenue Service
35. Gifts and recipient income
A genuine gift is generally excluded from the recipient's income, but compensation cannot become a gift merely through labeling. Federal gift-tax reporting generally concerns the donor, and reporting can be required even when no tax is payable. Analyze the relationship, purpose, and applicable exclusions before drawing conclusions.
Worked example: An aunt gives her niece $8,000 out of affection. Contrast that with a client's $8,000 payment for completed services: the latter is compensation despite a gift label.
Mistake to avoid: Assuming the recipient always owes income tax on a gift or that labels settle its character.
Exam context reference: Enrolled agent news | Internal Revenue Service
36. Present and future interests
The gift-tax annual exclusion generally requires a qualifying present interest: an immediate right to use, possess, or enjoy the property or its income. A transfer's amount alone does not establish exclusion eligibility. Trust gifts require attention to beneficiary rights and applicable special rules rather than assumptions based on the beneficiary's identity.
Worked example: A gift of cash usable immediately generally presents a present interest. A trust interest inaccessible until a future event may be a future interest unless a qualifying rule applies.
Mistake to avoid: Applying an annual exclusion to every trust transfer without examining the rights granted.
Exam context reference: Enrolled agent news | Internal Revenue Service
37. Gross estate and probate estate
The federal gross estate and the property administered through probate are not identical. Tax inclusion can depend on ownership, retained rights, and other statutory connections, even when property passes outside probate. After identifying includible property and its valuation, analyze applicable deductions and adjustments to determine the taxable estate.
Worked example: An asset transfers directly to a named beneficiary outside probate. That transfer mechanism alone does not establish whether the asset is excluded from the federal gross estate.
Mistake to avoid: Equating avoidance of probate with avoidance of estate-tax inclusion.
Exam context reference: Enrolled agent news | Internal Revenue Service
38. Basis in gifted and inherited property
Gifted property generally carries the donor's basis for gain, with a separate loss-basis rule when value at the gift date is lower. Inherited property generally receives a basis connected to applicable estate valuation, subject to exceptions. Acquisition method therefore matters as much as the property's current value.
Worked example: A donor's stock basis is $9,000 and gift-date value is $6,000. A later $7,000 sale falls between those figures and generally creates neither gain nor loss.
Mistake to avoid: Assigning gift-date fair market value as the universal basis for a gift.
Exam context reference: Enrolled agent news | Internal Revenue Service
39. Trust distributions and distributable net income
For a nongrantor trust, distributable net income helps limit the distribution deduction and the income carried to beneficiaries. A cash distribution does not necessarily equal taxable beneficiary income; principal and income character matter. Grantor-trust rules and capital-gain treatment can change the analysis, so first identify the trust's tax classification.
Worked example: Assume a nongrantor trust has $4,000 of distributable net income and distributes $6,000, with no complicating rules. Beneficiary income generally is limited to $4,000.
Mistake to avoid: Treating every dollar distributed from a trust as taxable ordinary income.
Exam context reference: Enrolled agent news | Internal Revenue Service
40. Income in respect of a decedent
Income in respect of a decedent generally covers taxable income the decedent was entitled to but had not properly included before death. It retains its income character when received by the appropriate recipient and generally does not receive the ordinary inherited-property basis adjustment. Distinguish unpaid income from property appreciation.
Worked example: A cash-method consultant dies with $3,000 of earned, unpaid fees. When the estate collects those fees, they generally represent taxable income in respect of a decedent.
Mistake to avoid: Excluding unpaid earnings from income simply because collection occurred after death.
Exam context reference: Enrolled agent news | Internal Revenue Service
Retirement and employee benefits
41. Traditional and Roth tax treatment
Traditional and Roth arrangements differ principally in when qualifying amounts receive tax advantages. Traditional contributions may receive current deductions or exclusions, while distributions may be taxable. Roth contributions generally use after-tax funds, while qualified distributions receive favorable treatment. Account type alone does not establish that every contribution is deductible or every distribution tax-free.
Worked example: Assume a traditional account contains only untaxed contributions and earnings. Its $5,000 distribution generally is taxable; a $5,000 qualified Roth distribution generally is not.
Mistake to avoid: Treating every Roth withdrawal as qualified without checking its conditions.
Exam context reference: Enrolled agent news | Internal Revenue Service
42. Contribution eligibility and deductibility
Permission to contribute and permission to deduct are separate questions. For an IRA, compensation, contribution limits, account type, workplace-plan coverage, income, and filing status may affect the result differently. An eligible traditional IRA contribution can be nondeductible; proper reporting then preserves its tax basis for later distribution calculations.
Worked example: Assume a taxpayer may contribute $4,000 to a traditional IRA but receives no deduction under the applicable income rules. The $4,000 is a nondeductible contribution requiring basis tracking.
Mistake to avoid: Rejecting all contribution eligibility merely because the contribution is not deductible.
Exam context reference: Enrolled agent news | Internal Revenue Service
43. After-tax basis in IRA distributions
Nondeductible traditional IRA contributions create basis that should not be taxed again. Distribution calculations generally apply a proportionate allocation across the relevant aggregated IRAs rather than allowing the taxpayer to select only after-tax dollars. Use the required balances and distribution figures; a separate account label does not override aggregation.
Worked example: Assume $12,000 of basis and $60,000 in the applicable distribution denominator. Basis represents 20%, so a $10,000 distribution has a $2,000 nontaxable portion.
Mistake to avoid: Declaring an entire withdrawal tax-free because one IRA contains nondeductible contributions.
Exam context reference: Enrolled agent news | Internal Revenue Service
44. Rollovers and transfers
An eligible rollover moves retirement assets under rules that differ from ordinary annual contributions. Eligibility, destination, timing, and payment method matter. A direct transfer can avoid issues associated with taking possession, but it does not make an ineligible amount eligible. Conversions may also have income consequences despite moving funds between retirement accounts.
Worked example: An eligible plan payout is $10,000, with $2,000 withheld. To roll over all $10,000 through an otherwise qualifying indirect rollover, the recipient must supply the missing $2,000.
Mistake to avoid: Assuming the $8,000 received represents the full gross distribution.
Exam context reference: Enrolled agent news | Internal Revenue Service
45. Required minimum distributions
Required minimum distributions are mandatory withdrawals calculated under account-specific rules. Applicable starting conditions, account balances, life-expectancy factors, ownership, and beneficiary status matter. A required amount generally cannot be rolled over. Rules for account aggregation differ, so an excess withdrawal from one account does not universally satisfy another account's requirement.
Worked example: Given a required calculation balance of $120,000 and an applicable divisor of 24, the calculated distribution is $5,000. Both inputs are stipulated rather than current universal requirements.
Mistake to avoid: Assuming all retirement accounts share the same starting conditions or aggregation rules.
Exam context reference: Enrolled agent news | Internal Revenue Service
46. Income tax and early-distribution additional tax
Taxable retirement income and an additional tax on early distributions are separate determinations. A qualifying exception to the additional tax does not necessarily exclude the distribution from income. Exceptions differ across arrangements, so evaluate the account type, recipient, purpose, and applicable conditions without transferring an exception automatically between plans.
Worked example: Assume an $8,000 distribution is fully taxable but meets an applicable exception to the early-distribution additional tax. The $8,000 remains income even though that additional tax is avoided.
Mistake to avoid: Reading an additional-tax exception as an income-tax exemption.
Exam context reference: Enrolled agent news | Internal Revenue Service
47. Employee deferrals, employer contributions, and vesting
Employee salary deferrals and employer contributions are distinct sources of retirement funding. Vesting determines ownership rights in certain employer contributions, while tax treatment follows additional rules. An account statement's total balance may exceed the amount currently vested. Contribution limitations also cannot be evaluated by treating every funding source as identical.
Worked example: An employee has $9,000 of their own deferrals and $6,000 of employer contributions that are 50% vested. The vested balance is $12,000.
Mistake to avoid: Assuming the entire employer contribution is owned immediately because it appears on a statement.
Exam context reference: Enrolled agent news | Internal Revenue Service
48. Accountable expense reimbursements
A qualifying accountable reimbursement arrangement requires a business connection, adequate substantiation, and return of excess advances. Amounts satisfying the conditions generally receive different wage treatment from unsubstantiated allowances. Calling a payment a reimbursement is insufficient, and the underlying expense must still satisfy the relevant business and tax requirements.
Worked example: An employee receives a $600 travel advance, substantiates $470 of qualifying costs, and returns $130. Assuming the arrangement meets all conditions, the advance is fully accounted for.
Mistake to avoid: Excluding a flat allowance from wages without substantiation and excess-return requirements.
Exam context reference: Enrolled agent news | Internal Revenue Service
Tax practice and procedures
49. Authority and research materials
Tax research distinguishes binding law and authoritative interpretation from explanatory material. Statutes, regulations, judicial decisions, and administrative guidance have different roles and precedential effects. IRS publications are useful explanations, but they do not replace controlling law. Match the authority to the issue, jurisdiction, and effective period before relying on a conclusion.
Worked example: A summary describes a deduction broadly, while the governing provision imposes an eligibility condition. The analysis must address that condition rather than adopt the summary alone.
Mistake to avoid: Treating every online tax explanation as equally authoritative.
Exam context reference: Enrolled agent news | Internal Revenue Service
50. Tax-year applicability
A correct rule for one year can be wrong for another because legislation, indexing, or transition provisions change its application. Identify the tax period first, then check effective dates and the relevant year's instructions. A document's publication date does not necessarily identify the tax year to which its figures apply.
Worked example: A deduction worksheet is labeled for Year A, but the return concerns Year B. Use the Year B rule and figures rather than carrying over Year A's amount.
Mistake to avoid: Using a current-looking webpage without checking the law's effective period.
Exam context reference: Enrolled agent news | Internal Revenue Service
51. Reasonable inquiry and substantiation
Tax preparation requires attention to information that appears incomplete, inconsistent, or implausible. Ask focused questions and obtain records appropriate to the claimed item. Substantiation supports a factual claim but does not itself create eligibility; both the evidence and the substantive rule must support the return treatment.
Worked example: A client reports $11,000 of deductible expenses but supplies only a $7,000 total. Request the missing details and resolve classification before claiming the larger figure.
Mistake to avoid: Accepting a round estimate despite a visible contradiction in the records.
Exam context reference: Enrolled agent news | Internal Revenue Service
52. Reconciliation and duplicate reporting
Information returns, bank activity, books, and taxpayer records should be reconciled rather than added mechanically. The same receipt may appear in multiple records, while transfers and loans may appear as deposits without being revenue. A reconciliation explains differences and preserves an audit trail instead of forcing totals to match without support.
Worked example: A business ledger includes $20,000 of card sales, and an information return reports those same sales. Recording another $20,000 would double revenue; the verified total remains $20,000.
Mistake to avoid: Adding every information-return amount to books that already include the underlying receipts.
Exam context reference: Enrolled agent news | Internal Revenue Service
53. Correcting a discovered return error
When a completed return contains an error, determine the affected year, tax items, and appropriate correction procedure. Inform the taxpayer of the issue and its consequences, and document the analysis. A taxpayer's decision about correction does not justify repeating the error in later work; later-year effects may require separate adjustments.
Worked example: A prior return omitted $2,000 of taxable interest. Identify the affected year's correction process rather than adding $2,000 to the current year's unrelated interest.
Mistake to avoid: Moving omitted prior-year income into the current year merely for convenience.
Exam context reference: Enrolled agent news | Internal Revenue Service
54. Confidentiality and permitted disclosure
Tax information is sensitive, and disclosure requires an applicable legal basis or properly obtained consent where required. A request from someone connected with the taxpayer does not automatically establish permission. Verify identity, purpose, recipient, and disclosure conditions, and share only what the authorized task requires.
Worked example: A lender asks for a client's return. Before providing it, verify the request and establish the required authorization; the client's application for a loan alone is insufficient.
Mistake to avoid: Assuming a family relationship or business relationship automatically permits access to a return.
Exam context reference: Enrolled agent news | Internal Revenue Service
55. Conflicts of interest
A conflict can arise when obligations to one client materially affect work for another, or when a practitioner's own interests impair judgment. Identify the competing interests before proceeding. Evaluate the applicable professional rules, including whether the conflict can be addressed through required informed consent or instead requires declining or ending the engagement.
Worked example: Two former business partners dispute who should report a payment. Their interests diverge, so handling both positions requires a conflict assessment before substantive advice.
Mistake to avoid: Assuming shared past ownership means the clients' current tax interests remain aligned.
Exam context reference: Enrolled agent news | Internal Revenue Service
56. Authorization and engagement scope
Preparing a return, receiving confidential information, and acting for a taxpayer are distinct activities that can require different authorizations. Define the engagement and verify the applicable authorization's taxpayer, tax matters, periods, and permissions. An engagement agreement alone does not necessarily establish authority for every interaction with the IRS.
Worked example: A client authorizes work concerning one income-tax year. A notice about a different year requires checking whether the existing authorization covers that additional matter.
Mistake to avoid: Assuming one signed document grants unrestricted authority over every tax issue.
Exam context reference: Enrolled agent news | Internal Revenue Service
57. Notice identification and response
A tax notice should be analyzed by its tax period, issue, proposed action, response instructions, and stated deadline. Distinguish a request for information from a balance-due notice or a document affecting procedural rights. Verify authenticity through appropriate official channels and compare the notice with the return and account records.
Worked example: A notice proposes additional interest income already included on the return. The useful response identifies its reporting location and supporting statement rather than paying the proposed amount automatically.
Mistake to avoid: Responding to a notice without first identifying exactly what the IRS is asserting.
Exam context reference: Enrolled agent news | Internal Revenue Service
58. Examination and administrative appeal
An examination develops facts and evaluates the return's treatment. An administrative appeal addresses an eligible unresolved dispute through a different process. Identify what findings are contested, the factual support, and the applicable procedural route. Specific notice types and deadlines determine available options; an informal conversation does not necessarily preserve them.
Worked example: An examination challenges a business expense as personal. A focused dispute presents business-purpose evidence and the relevant rule instead of merely stating disagreement with the resulting tax.
Mistake to avoid: Treating disagreement alone as a substitute for evidence and a properly pursued procedure.
Exam context reference: Enrolled agent news | Internal Revenue Service
59. Filing obligations and payment obligations
Filing a return and paying the tax are separate obligations. An extension of filing time generally does not extend payment time. Different additions to tax can arise from filing and payment failures, subject to applicable exceptions. Evaluate each obligation independently rather than assuming one action resolves both.
Worked example: A taxpayer obtains a valid filing extension but leaves an estimated $2,500 unpaid past the payment due date. The filing extension alone does not prevent payment-related interest or additions.
Mistake to avoid: Interpreting permission to file later as permission to pay later.
Exam context reference: Enrolled agent news | Internal Revenue Service
60. Assessment, collection, and refund time limits
Assessment, collection, and refund claims involve different limitation rules, starting events, and possible exceptions or suspensions. Identify the procedure before calculating any deadline. Filing history, payments, agreements, and other events can affect the analysis; one remembered period cannot safely answer every limitation question.
Worked example: A taxpayer asks whether a refund claim is timely. Analyze the relevant filing and payment dates under refund rules rather than using a collection deadline from an account record.
Mistake to avoid: Applying one limitation period universally to assessment, collection, and refunds.
Exam context reference: Enrolled agent news | Internal Revenue Service
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