CPA Quiz: Apply Adjustments To Gross Income
20 questions · exam conditions
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Apply Adjustments To Gross IncomeQuestion 1 of 20

A self-employed attorney pays $14,400 in health insurance premiums for herself, her spouse, and dependent children. Her net profit from self-employment before this deduction is $85,000. What is the self-employed health insurance deduction?

$7,200 (50% of premiums paid)
$10,800 (75% of premiums paid)
$14,400 (100% of premiums paid)
$12,000 (limited to a percentage of net SE profit)
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CPA Quiz

CPA Quiz: Apply Adjustments To Gross Income

Practice Apply Adjustments To Gross Income in CPA with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

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This quiz focuses on Apply Adjustments To Gross Income, giving you a quick way to practice the rules, question types, and explanations that matter most for CPA.

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Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

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Question 1

A self-employed attorney pays $14,400 in health insurance premiums for herself, her spouse, and dependent children. Her net profit from self-employment before this deduction is $85,000. What is the self-employed health insurance deduction?

  1. $7,200 (50% of premiums paid)
  2. $10,800 (75% of premiums paid)
  3. $14,400 (100% of premiums paid) (correct answer)
  4. $12,000 (limited to a percentage of net SE profit)
Explanation: Self-employed individuals may deduct 100% of health insurance premiums paid for themselves, their spouse, and dependents as an above-the-line deduction under IRC Section 162(l). The deduction is limited to net profit from the self-employment activity for which the plan was established. Here, $14,400 is less than the $85,000 net profit, so the full $14,400 is deductible. Option A applies a 50% limit that does not exist. Option B applies a 75% limit. Option D uses an incorrect percentage-based limitation.

Question 2

A taxpayer has wages of $80,000 and net SE income of $20,000. SE tax is $2,827 (50% deductible = $1,413). Self-employed health insurance premiums paid are $6,000. Traditional IRA contribution is $6,000 (fully deductible; not an active participant). What is AGI?

  1. $100,000
  2. $86,587 (correct answer)
  3. $88,000
  4. $80,000
Explanation: Total income = $80,000 + $20,000 = $100,000. Above-the-line deductions: SE tax deduction $1,413 + self-employed health insurance $6,000 + IRA $6,000 = $13,413. AGI = $100,000 - $13,413 = $86,587. Option A omits all deductions. Option C omits the SE tax deduction. Option D omits SE income and the deductions.

Question 3

A taxpayer has wages of $120,000 and paid $2,500 in student loan interest. MAGI before the student loan interest deduction is $120,000. The 2024 single-filer phase-out ends at $95,000. Which analysis is most accurate?

  1. The full $2,500 is deductible because the taxpayer paid the full annual maximum
  2. No deduction is allowed; MAGI of $120,000 exceeds the upper phase-out limit of $95,000, completely eliminating the student loan interest deduction (correct answer)
  3. A partial deduction of $500 is available because the student loan interest phase-out applies a special floor
  4. A deduction of $1,250 is available because MAGI exceeds the midpoint of the phase-out range
Explanation: When MAGI exceeds the upper limit of the phase-out range ($95,000 for single filers in 2024), the student loan interest deduction is completely phased out and no deduction is allowed. The taxpayer's MAGI of $120,000 is $25,000 above the upper limit, placing him entirely outside the eligible range. The fact that he paid the full $2,500 maximum is irrelevant when the income threshold eliminates the deduction. Options A, C, and D all allow a deduction when none is available at this income level.

Question 4

A married couple files jointly. Both spouses are employed by a school district and both work as teachers for more than 900 hours annually. One spouse also earns commission income as a licensed real estate agent on weekends. The teacher-agent spouse spent $350 on qualifying classroom supplies. Which analysis of their educator expense deduction situation is most accurate?

  1. Each spouse may deduct up to $300, so the couple claims $600 if both spent qualifying amounts
  2. Only the spouse who works exclusively as a teacher qualifies; secondary income from real estate disqualifies the educator expense deduction
  3. The teacher-agent spouse qualifies for the educator expense deduction based on meeting the 900-hour requirement as a teacher; earning side income from real estate does not disqualify the educator expense deduction (correct answer)
  4. The couple must choose between the educator expense deduction and any real estate business expense deductions, but cannot take both
Explanation: To qualify as an eligible educator, a taxpayer must work at least 900 hours as a teacher, instructor, counselor, principal, or aide in a school during the year. Having additional income from another activity does not disqualify the educator expense deduction. The teacher-agent spouse meets the 900-hour test and may deduct up to $300 of qualifying classroom expenses regardless of the real estate income. Options B and D add restrictions that the IRC does not impose. Option A is directionally correct for the premise that both spouses qualify, but misses the question's focus on whether the side income disqualifies the deduction.

Question 5

A self-employed consultant has net SE income of $100,000. SE tax is approximately $14,130, giving an SE tax deduction of $7,065. Net SE compensation after the SE tax deduction is $92,935. She contributes $30,000 to a SEP-IRA. The SEP limit is 25% of net SE compensation. Which analysis of the SEP deduction is most accurate?

  1. The full $30,000 is deductible; SEP contributions are not subject to net SE compensation limitations
  2. $25,000 is deductible (25% of $100,000 gross SE income)
  3. $30,000 is deductible because it is less than the $69,000 annual dollar limit
  4. Only $18,587 is deductible; for self-employed individuals the SEP limit equals approximately 20% of net SE compensation after the SE tax deduction (the 25% plan rate applied to earned income reduced by the contribution itself), and 20% x $92,935 = $18,587; the $30,000 contribution exceeds this limit (correct answer)
Explanation: For self-employed individuals, the SEP deduction limit equals the plan rate applied to earned income reduced by the contribution itself - a circular calculation that simplifies to approximately 20% of net SE compensation after the SE tax deduction. Here: 20% x $92,935 = $18,587. Since the $30,000 contribution exceeds the $18,587 limit, only $18,587 is deductible. Answer D is correct. Option A ignores the compensation-based limitation. Option B applies 25% to gross SE income before the SE tax deduction, overstating the base. Option C correctly notes that $30,000 is below the $69,000 dollar limit but ignores the lower compensation-based limit that controls here.

Question 6

A single 40-year-old taxpayer with MAGI of $95,000 is an active participant in her employer's 401(k) plan. The 2024 IRA deduction phase-out range for single active participants is $77,000 to $87,000. She contributes $7,000 to a traditional IRA. What is her allowable IRA deduction?

  1. $0 (MAGI fully exceeds the upper phase-out limit, eliminating the deduction) (correct answer)
  2. $7,000 (active plan participation does not affect IRA deductibility)
  3. $3,500 (50% deductible above the phase-out range)
  4. $1,000 (residual deduction for taxpayers above the phase-out range)
Explanation: The MAGI of 95,000exceedstheupperlimitofthephase−outrange(95,000 exceeds the upper limit of the phase-out range (87,000) for single active participants. Once MAGI exceeds the upper limit, the IRA deduction is completely eliminated. No deduction is available even though she contributed $7,000; the contribution may remain in the IRA as a non-deductible contribution. Option B ignores the phase-out that applies to active participants. Option C and D fabricate partial deduction rules above the phase-out ceiling.

Question 7

A single active-participant taxpayer has MAGI of $83,000 and contributes $7,000 to a traditional IRA. The 2024 phase-out range for single active participants is $77,000 to $87,000. What is the allowable IRA deduction?

  1. $0 (MAGI is above the phase-out range)
  2. $3,500 (50% allowed based on position in phase-out range)
  3. $2,800 (phase-out reduces the $7,000 contribution proportionally based on MAGI in the phase-out range) (correct answer)
  4. $7,000 (the phase-out does not apply at $83,000 MAGI)
Explanation: Phase-out calculation: Excess MAGI = $83,000 - $77,000 = $6,000. Phase-out range = $87,000 - $77,000 = $10,000. Phase-out ratio = $6,000 / $10,000 = 60%. Reduction = $7,000 x 60% = $4,200. Allowable deduction = $7,000 - $4,200 = $2,800. Option A incorrectly treats 83,000asabovethephase−outceiling(83,000 as above the phase-out ceiling (87,000). Option B applies a flat 50% without calculating the actual phase-out. Option D ignores the phase-out that clearly applies.

Question 8

A single 40-year-old taxpayer enrolled in a qualifying high-deductible health plan (HDHP) contributes $3,800 to her Health Savings Account (HSA) during 2024. The self-only HDHP contribution limit for 2024 is $4,150. What is the HSA deduction?

  1. $3,800 (fully deductible; HSA contributions are not subject to AGI phase-outs) (correct answer)
  2. $1,900 (50% deductible for single taxpayers)
  3. $0 (HSA deductions require itemizing medical expenses)
  4. $3,800, but only for taxpayers age 55 or older
Explanation: HSA contributions made directly by the taxpayer are deductible above the line under IRC Section 223(a). They are not subject to any AGI phase-out and do not require itemizing. The full $3,800 contribution is deductible because it does not exceed the 2024 self-only contribution limit of $4,150. Option B applies a 50% limitation that does not exist. Option C is incorrect; HSA deductions are above-the-line. Option D misapplies the catch-up contribution rule (age 55+ may contribute an additional $1,000) as a general age restriction.

Question 9

A single taxpayer has MAGI of $86,000 before the student loan interest deduction. She paid $2,500 in qualifying student loan interest. The 2024 phase-out range is $80,000 to $95,000. What is the correct deduction amount?

  1. $2,500; no phase-out reduction because she paid the exact cap amount
  2. $0; MAGI exceeds the beginning of the phase-out range
  3. $1,500; the phase-out reduces the $2,500 cap by 40% based on MAGI exceeding the threshold by $6,000 of the $15,000 range (correct answer)
  4. $2,000; the phase-out for student loan interest applies differently than other income-based phase-outs
Explanation: Phase-out calculation: Excess MAGI = $86,000 - $80,000 = $6,000. Phase-out range = $95,000 - $80,000 = $15,000. Phase-out percentage = $6,000 / $15,000 = 40%. Reduction = $2,500 x 40% = $1,000. Allowable = $2,500 - $1,000 = $1,500. Option A applies the cap without the phase-out reduction. Option B eliminates the deduction entirely when MAGI is within the phase-out range (not beyond it). Option D applies an incorrect calculation method.

Question 10

A single taxpayer paid $3,800 in qualifying student loan interest. His MAGI before this deduction is $82,000. The 2024 phase-out range for single filers is $80,000 to $95,000. What is the allowable student loan interest deduction?

  1. $3,800 (full amount paid)
  2. $2,500 (statutory maximum, no phase-out applicable)
  3. $2,333 (based on pro-rata phase-out calculation)
  4. $2,167 (phase-out reduces the $2,500 cap by the applicable ratio) (correct answer)
Explanation: The student loan interest deduction is capped at $2,500. The phase-out reduces this cap based on MAGI in the phase-out range. Excess MAGI = $82,000 - $80,000 = $2,000. Phase-out ratio = $2,000 / $15,000 = 13.33%. Reduction = $2,500 x 13.33% = $333. Allowable deduction = $2,500 - $333 = $2,167. Option A uses the actual interest paid, which exceeds the $2,500 cap. Option B applies the full cap without the phase-out reduction. Option C uses an incorrect ratio.

Question 11

A single taxpayer is not an active participant in any employer plan, but her spouse IS an active participant in his employer's 401(k). Her MAGI is $228,000. The 2024 phase-out range for a non-active participant married to an active participant is $230,000 to $240,000. She contributes $7,000 to a traditional IRA. What is her allowable IRA deduction?

  1. $0 (her spouse's active participation eliminates her IRA deductibility)
  2. $3,500 (50% deductible when married to an active participant regardless of income)
  3. $700 (10% base deduction for non-active participants married to active participants)
  4. $7,000 (full deduction; MAGI is below the $230,000 lower limit of the applicable phase-out range) (correct answer)
Explanation: When the taxpayer is not an active participant but her spouse is, a separate (higher) phase-out range applies - $230,000 to $240,000 for 2024. Because her MAGI of $228,000 falls below the $230,000 lower limit, she has not yet entered the phase-out range, and the full $7,000 is deductible. Option A is incorrect; spousal active participation triggers a phase-out only when income is in or above the applicable range. Option B applies a flat 50% limitation that does not exist. Option C invents a 10% base deduction.

Question 12

A 55-year-old single taxpayer contributes $7,000 plus a $1,000 catch-up contribution for a total of $8,000 to a traditional IRA. She is not an active participant in any employer-sponsored plan. Which analysis is most accurate?

  1. Only $7,000 is deductible; catch-up contributions are not deductible for non-active participants
  2. The full $8,000 is deductible; taxpayers age 50 or older may make catch-up IRA contributions, and non-active participants may deduct the full contribution regardless of income (correct answer)
  3. She must direct the $1,000 catch-up portion to a Roth IRA rather than a traditional IRA
  4. Only $4,000 is deductible because catch-up contributions within 10 years of the normal retirement age are subject to a 50% deductibility limit
Explanation: Taxpayers age 50 or older may contribute an additional $1,000 in catch-up contributions to a traditional IRA, for a total 2024 limit of $8,000. Since she is not an active participant in any employer plan, there is no income-based phase-out on the IRA deduction, and the full $8,000 contribution is deductible as an above-the-line adjustment. Option A incorrectly denies the deductibility of catch-up contributions. Option C has no basis in law; catch-up contributions may go to a traditional IRA. Option D invents a pre-retirement proximity limitation.

Question 13

A self-employed individual contributes $22,000 to a SEP-IRA. Her net self-employment compensation (after the SE tax deduction) is $110,000. The SEP contribution limit is 25% of net SE compensation (or the annual dollar limit of $69,000 in 2024). Is the full $22,000 deductible?

  1. No; SEP contributions are treated as employer contributions and are not above-the-line adjustments to gross income for self-employed individuals
  2. Yes; for self-employed individuals the effective SEP deductible limit is approximately 20% of net SE compensation after the SE tax deduction - not 25% - because the 25% plan rate is applied to earned income reduced by the contribution itself. 20% x $110,000 = $22,000, which equals the contribution, so the full $22,000 is deductible (correct answer)
  3. No; only $17,500 is deductible because that is the IRA-type component of the SEP contribution
  4. No; only $11,000 is deductible because SEP contributions above the IRA limit are treated as employer contributions with a 50% deductibility limit
Explanation: For self-employed individuals, the SEP deduction limit is not simply 25% of net SE compensation. The 25% plan rate applies to earned income reduced by the SEP contribution itself - a circular calculation that simplifies to an effective rate of approximately 20% of net SE compensation after the SE tax deduction. Here: 20% x $110,000 = $22,000. Since the contribution of $22,000 equals the maximum deductible amount and does not exceed the $69,000 annual dollar limit, the full $22,000 is deductible as an above-the-line adjustment. Answer B is correct. Option A is incorrect; SEP contributions are deductible above-the-line for self-employed individuals. Options C and D misstate the applicable rules.

Question 14

A self-employed consultant has net profit of $45,000 from Schedule C. She pays $52,000 in health insurance premiums for herself and family. She has no other self-employment activity. Which analysis of her self-employed health insurance deduction is most accurate?

  1. The deduction is limited to the taxpayer's earned income from the self-employment activity, which equals net SE profit reduced by the SE tax deduction (and any qualified plan contributions) - not simply the Schedule C net profit; here the earned income cap is approximately $41,800 after the SE tax deduction on $45,000 of net profit, which is less than both the $52,000 premium paid and the $45,000 net profit figure (correct answer)
  2. The full $52,000 is deductible because self-employed health insurance is always deductible in full
  3. $26,000 is deductible (50% of premiums paid for self-employed individuals)
  4. The deduction is $0 because premiums exceeding net SE profit trigger a complete disallowance
Explanation: Under IRC Section 162(l), the self-employed health insurance deduction is limited to the taxpayer's earned income from the trade or business for which the plan was established. For self-employed individuals, earned income for this purpose equals net SE profit reduced by the SE tax deduction and any qualified retirement plan contribution deductions - not simply the Schedule C net profit. Here, with $45,000 of net SE profit, the SE tax deduction is approximately $3,180, leaving earned income of approximately $41,820. The $52,000 in premiums exceeds this cap, so the deduction is limited to the earned income amount - not the full $45,000 net profit. Answer A is correct. Option B ignores the earned income limitation entirely. Option C applies a 50% limitation that no longer exists. Option D incorrectly treats excess premiums as triggering complete disallowance.

Question 15

A single taxpayer has wages of $200,000 and contributes $22,500 to her employer's 401(k) plan, making her an active participant. She also has $30,000 of net SE income. She wants to make a deductible traditional IRA contribution. The 2024 single active-participant phase-out ceiling is $87,000. Which analysis is most accurate?

  1. She can deduct $7,000 because SE income is excluded from the active-participant phase-out calculation
  2. She can deduct $7,000 because the 401(k) contribution reduces MAGI below the phase-out range
  3. She can deduct $3,500 as a partial deduction available to high-income earners
  4. No IRA deduction is available; her MAGI far exceeds the $87,000 upper phase-out limit for single active participants, completely eliminating the traditional IRA deductibility (correct answer)
Explanation: Her MAGI includes both wages and SE income. Even wages alone ($200,000) exceed the $87,000 upper phase-out limit for single active participants by more than $100,000. All income types are included in MAGI for this purpose; SE income does not receive a carve-out. The 401(k) contribution reduces taxable income but does not reduce MAGI for IRA phase-out purposes (MAGI adjustments for IRA purposes add back the 401(k) deduction). Options A and B invoke exceptions that do not exist. Option C fabricates a partial deduction above the phase-out ceiling.

Question 16

A married couple filing jointly are both eligible educators. Spouse A spent $480 on qualifying classroom expenses and Spouse B spent $380. What is their total educator expense deduction?

  1. $860 (combined actual expenses)
  2. $480 (only the larger of the two amounts)
  3. $300 (the single-educator cap applies regardless of filing status)
  4. $600 (married filing jointly with two educators may deduct up to $300 per educator, for a maximum of $600) (correct answer)
Explanation: For a married filing jointly return, if both spouses are eligible educators, each spouse may deduct up to $300 of their own qualifying expenses, for a combined maximum of $600. Spouse A is capped at $300 (actual $480 exceeds limit). Spouse B is also capped at $300 (actual $380 exceeds limit). Total = $600. Option A uses the uncapped actual amounts. Option B limits the deduction to one spouse's amount. Option C applies the single-educator $300 cap to the combined return without allowing the per-spouse calculation.

Question 17

A single taxpayer has net self-employment income of $40,000. The SE tax computed on this income is approximately $5,652. What is the above-the-line deduction for self-employment tax?

  1. $5,652
  2. $2,826 (correct answer)
  3. $3,060
  4. $1,413
Explanation: The deduction for self-employment tax equals 50% of the total SE tax paid. The policy rationale is that employees pay only the employee's share of FICA (50%) while employers pay the other 50%; self-employed individuals pay both shares but are allowed to deduct the employer-equivalent share. 50% x $5,652 = $2,826. Option A is the full SE tax, not the deductible half. Option C applies 54% to the net SE income. Option D is 25% of the SE tax.

Question 18

A single elementary school teacher spent $480 on classroom supplies, books, and decorations for his students during the year. What is his educator expense deduction?

  1. $300 (statutory maximum for a single eligible educator) (correct answer)
  2. $480 (actual qualifying expenses incurred)
  3. $240 (50% of qualifying expenses)
  4. $0 (educator expenses must be claimed as itemized deductions)
Explanation: Eligible educators may deduct up to $300 per year of qualified educator expenses as an above-the-line deduction under IRC Section 62(a)(2)(D). Since the teacher spent $480, the deduction is capped at $300. The deduction does not require itemizing - it reduces AGI directly. Option B uses the actual amount without applying the $300 cap. Option C incorrectly applies a 50% limitation. Option D incorrectly requires itemization.

Question 19

A taxpayer pays $30,000 per year in alimony under a 2016 divorce decree. A 2023 modification increases payments to $36,000. Which analysis of the deductibility of the $36,000 payment is most accurate?

  1. The full $36,000 is deductible because the original decree predates 2019 and remains grandfathered
  2. The full $36,000 is deductible because modifications never change the original pre-2019 classification
  3. Nothing is deductible because the 2023 modification brings the entire agreement under post-TCJA rules
  4. Whether the full $36,000 is deductible depends on whether the 2023 modification expressly states that the post-2018 rules apply; absent such language, the pre-2019 rules generally continue to apply and the payments remain deductible (correct answer)
Explanation: Under TCJA transition rules, a modification of a pre-2019 divorce agreement does not automatically lose the grandfathered pre-2019 treatment. The old rules continue to apply unless the modification agreement expressly provides that the post-2018 rules shall apply. If the 2023 modification is silent on which tax treatment governs, the pre-2019 treatment is generally preserved, and the full $36,000 remains deductible by the payer and includable by the recipient. Option A and B assume the pre-2019 treatment automatically continues regardless of the modification's language. Option C assumes modification always triggers post-TCJA treatment, which is incorrect.

Question 20

Above-the-line deductions (adjustments to gross income) differ from itemized deductions in which of the following ways?

  1. Above-the-line deductions reduce AGI and are available regardless of whether the taxpayer itemizes or claims the standard deduction (correct answer)
  2. Above-the-line deductions are subject to the 2% AGI floor applicable to miscellaneous itemized deductions
  3. Above-the-line deductions are available only to self-employed taxpayers
  4. Above-the-line deductions provide no benefit unless their total exceeds the standard deduction amount
Explanation: Above-the-line deductions (adjustments to gross income listed on Schedule 1 of Form 1040) reduce AGI whether or not the taxpayer itemizes. This makes them particularly valuable because they lower AGI, which serves as the base for many other limitations and phase-outs. Itemized deductions, by contrast, only benefit taxpayers whose total itemized deductions exceed the standard deduction. Option B describes a pre-TCJA miscellaneous itemized deduction rule, not above-the-line deductions. Option C is incorrect; many above-the-line deductions (educator expenses, IRA contributions, student loan interest) are available to employees and non-self-employed taxpayers. Option D describes the limitation on itemized deductions.