From individual gross income to AGI and taxable income
Follow the individual return from gross income to adjusted gross income and taxable income, then practice the classification decisions tested in REG.
The decision that earns the point
Classify the tax fact before calculating
Adjusted gross income is gross income reduced by the deductions allowed in arriving at AGI. Taxable income generally begins with AGI and then applies the deductions allowed after AGI under the facts and tax year.
Exam use
REG can ask where an item enters the Form 1040 sequence, whether it changes AGI or only taxable income, and how a classification error flows into later limits.
Your scratch-paper plan
Solve it in three moves
- 1
Build gross income
Classify inclusions and exclusions before subtracting any deduction.
26 USC Section 62: Adjusted gross income defined - 2
Calculate AGI
Subtract only deductions allowed in arriving at adjusted gross income.
26 USC Section 62: Adjusted gross income defined - 3
Calculate taxable income
Apply the permitted standard or itemized deduction and other after-AGI rules for the stated year.
26 USC Section 62: Adjusted gross income defined
Worked problem
Work the facts before choosing the answer
The facts supply $86,000 of gross income, a $4,000 adjustment allowed in arriving at AGI, and a $15,000 deduction allowed after AGI.
CPAPass original exam illustration using stated assumptions
Show the work
AGI is $82,000. The later $15,000 deduction does not change AGI; it reduces the next-stage amount.
Rule source: 26 USC Section 62: Adjusted gross income definedAnswer
Taxable income is $67,000 under the simplified stated facts.
Rule source: 26 USC Section 62: Adjusted gross income definedDo it now
Test the same decision with a fresh question
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The trap and the repair
Common trap
Subtracting every deduction before AGI makes AGI too low and can distort limits tied to AGI.
Repair
Place each item on one of three lines before doing arithmetic: gross income, deduction for AGI, or deduction after AGI.
Form 1040 bridge
Do not collapse AGI and taxable income into one subtotal
The location of a deduction matters. Classify the item first, then calculate the subtotal the requirement asks for.
| Stage | What changes it | What it controls | Authority |
|---|---|---|---|
| Gross income | Taxable inclusions less statutory exclusions | Starting pool before deductions | 26 USC Section 62: Adjusted gross income defined |
| Adjusted gross income | Gross income less deductions listed for AGI | Subtotal used by later limits and return calculations | 26 USC Section 62: Adjusted gross income defined |
| Taxable income | AGI less deductions allowed after AGI under the stated facts | Base to which the applicable tax calculation is applied | 26 USC Section 63: Taxable income defined |
After a miss
Repair an AGI classification miss
- 1
Write gross income, AGI, and taxable income as three separate lines before sorting the items.
- 2
Circle the deduction that changes AGI and underline any deduction that applies only after AGI.
- 3
Change one item category and recompute both subtotals before trying a fresh REG question.
Your exam workflow
- Step 1Read the requirementIdentify what the task asks you to decide about REG Individual Gross Income.2026 Uniform CPA Examination Blueprints
- Step 2Sort the factsClassify inclusions and exclusions before subtracting any deduction.26 USC Section 62: Adjusted gross income defined
- Step 3Apply the ruleSubtract only deductions allowed in arriving at adjusted gross income.26 USC Section 62: Adjusted gross income defined
- Step 4Check the outputApply the permitted standard or itemized deduction and other after-AGI rules for the stated year.26 USC Section 62: Adjusted gross income defined
Keep the next step narrow
Quick questions
What is the shortest useful answer for REG Individual Gross Income?
Adjusted gross income is gross income reduced by the deductions allowed in arriving at AGI. Taxable income generally begins with AGI and then applies the deductions allowed after AGI under the facts and tax year.
How can REG Individual Gross Income appear on the CPA Exam?
REG can ask where an item enters the Form 1040 sequence, whether it changes AGI or only taxable income, and how a classification error flows into later limits. The exact task can change, so identify the governing facts before applying the rule.
What is the most common mistake with REG Individual Gross Income?
Subtracting every deduction before AGI makes AGI too low and can distort limits tied to AGI. Place each item on one of three lines before doing arithmetic: gross income, deduction for AGI, or deduction after AGI.
Where should I practice REG Individual Gross Income?
After the worked example, use REG practice for a fresh question that requires the same decision. If the miss depends on reg individual taxation and the form 1040 sequence, review that handoff before trying another set.
How should I review REG Individual Gross Income after a missed question?
Write gross income, AGI, and taxable income as three separate lines before sorting the items. Circle the deduction that changes AGI and underline any deduction that applies only after AGI. Change one item category and recompute both subtotals before trying a fresh REG question.