CPA Regulation Reg Quiz: Apply Adjustments To Gross Income

What this quiz covers

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 Regulation Reg.

How to use this quiz

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.

Question 1

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.

Question 2

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 3

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 4

1. All divorce agreements regardless of when they were executed
2. Divorce or separation agreements executed before January 1, 2019, where payments meet the alimony definition under pre-TCJA rules (correct answer)
3. Post-2018 divorce agreements if the payer elects to treat payments as alimony and the recipient elects to include them in income
4. All alimony paid in the current year, provided the payer and recipient file in separate states

Explanation: The Tax Cuts and Jobs Act of 2017 eliminated the alimony deduction for divorce or separation agreements executed after December 31, 2018. Agreements executed on or before that date retain the prior treatment: the payer may deduct alimony and the recipient includes it in gross income. For agreements executed after 2018, alimony is neither deductible by the payer nor includable by the recipient. Options A and D are incorrect because post-2018 agreements do not qualify. Option C is incorrect; there is no election to opt into the old treatment for post-2018 agreements.

Question 5

1. $95,000 (alimony is no longer deductible under any circumstances)
2. $89,000 (50% of alimony paid is deductible)
3. $83,000 (full$12,000 is deductible for pre-2019 agreements) (correct answer)
4. $91,000 (alimony is deductible only to the extent it exceeds 10% of AGI)

Explanation: The divorce decree was signed in 2015, making it a pre-2019 agreement that retains the old alimony rules. The full $12,000 is deductible as an above-the-line deduction. AGI =$95,000 - $12,000 =$83,000. Option A incorrectly applies the post-2018 rules to a pre-2019 agreement. Option B applies a 50% limit that does not exist. Option D applies a 10% floor that does not apply to alimony deductions.

Question 6

1. $0 (IRA deductions require no other retirement coverage to exist at the employer)
2. $3,250 (50% deductible for taxpayers without an employer plan)
3. $0 (income of$45,000 disqualifies the IRA deduction)
4. $6,500 (full amount; non-active participants may deduct the full IRA contribution regardless of income level) (correct answer)

Explanation: A taxpayer who is not an active participant in an employer-sponsored retirement plan (and whose spouse is also not an active participant) may deduct the full IRA contribution regardless of income level. The income phase-outs for IRA deductibility apply only to active participants in employer-sponsored plans. Since this taxpayer has no employer plan coverage, his $6,500 contribution is fully deductible. Options A and C invent restrictions that do not apply to non-participants. Option B applies a 50% limitation that does not exist.

Question 7

1. $65,000 (early withdrawal penalties are not deductible)
2. $64,787.50 (50% of the penalty is deductible)
3. $64,575 (the full$425 penalty is deductible as an above-the-line adjustment) (correct answer)
4. $64,150 (a penalty enhancement doubles the deductible amount)

Explanation: Under IRC Section 62(a)(9), penalties paid on the early withdrawal of funds from time savings accounts are deductible as an above-the-line adjustment. The full $425 is deductible. AGI =$65,000 - $425 =$64,575. Option A incorrectly denies the deduction. Option B applies a 50% limitation that does not exist. Option D has no basis in the tax code.

Question 8

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 9

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 10

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 11

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 12

1. 50% of the total self-employment tax computed for the year (correct answer)
2. 100% of all self-employment taxes paid during the year
3. The employer's share of FICA taxes computed at 7.65% of net SE income
4. 92.35% of net self-employment income

Explanation: IRC Section 164(f) allows self-employed individuals to deduct one-half (50%) of their self-employment tax as an above-the-line deduction. This mirrors the treatment of employees, who are effectively not taxed on the employer's share of FICA taxes (the employer deducts it as a business expense). Option B is incorrect; only half is deductible. Option C describes the FICA tax rate applied to net wages but does not correctly describe the SE tax deduction formula. Option D is the net earnings from self-employment base used to compute SE tax, not the deductible amount.

Question 13

1. The full $30,000 is deductible; SEP contributions are not subject to net SE compensation limitations
2. $25,000 is deductible (25$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$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$30,000 is below the $69,000 dollar limit but ignores the lower compensation-based limit that controls here.

Question 14

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 $95,000 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 15

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$83,000 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 16

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 17

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 18

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 19

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 20

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.