Adjusted Gross Income (AGI) Calculator
Combine common income sources and above-the-line adjustments to estimate U.S. adjusted gross income before the standard or itemized deduction.
Income and adjustments
Gross income
Enter annual U.S. dollar amounts. Properly reported loss categories may be negative where noted.
Nonnegative taxable wage income; blank counts as $0.
Net taxable amount; a valid business loss may be negative.
Combined taxable amount; a properly reported loss may be negative.
Use the taxable net amount applicable to your return; losses may be negative.
Enter only the taxable portion, as a nonnegative amount.
Deductions
Enter positive eligible adjustments. The calculator subtracts these amounts from gross income.
Eligible deductible amount only; nonnegative.
Eligible deductible interest, not total loan payments.
Enter the eligible adjustment amount for the tax year.
Eligible HSA deduction amount; nonnegative.
Use the qualified deductible amount, such as an eligible self-employed deduction.
Results
Adjusted gross income
$74,100.00
Gross income
$87,700.00
Total adjustments to income
$13,600.00
Formula: AGI = gross income – total adjustments to income.
Adjusted gross income is $74,100.00. Gross income is $87,700.00 and adjustments are $13,600.00.
AGI calculation detail
| Category | Line item | Amount | AGI effect |
|---|---|---|---|
| Income | Salary, wages and tips | $72,000.00 | +$72,000.00 |
| Income | Business / self-employment | $8,000.00 | +$8,000.00 |
| Income | Interest, dividends, royalties, etc. | $1,200.00 | +$1,200.00 |
| Income | Capital gains and losses | $2,500.00 | +$2,500.00 |
| Income | Pension / Annuity / IRA distributions | $4,000.00 | +$4,000.00 |
| Adjustment | Contributions to retirement / IRAs | $6,000.00 | – $6,000.00 |
| Adjustment | Student loan interest | $1,200.00 | – $1,200.00 |
| Adjustment | Educator expenses | $300.00 | – $300.00 |
| Adjustment | Healthcare savings account (HSA) contributions | $2,500.00 | – $2,500.00 |
| Adjustment | Health insurance premiums | $3,600.00 | – $3,600.00 |
| Total | Gross income | $87,700.00 | +$87,700.00 |
| Total | Total adjustments to income | $13,600.00 | – $13,600.00 |
| Result | Adjusted gross income | $74,100.00 | $74,100.00 |
This calculator performs arithmetic on the eligible amounts you enter; it does not decide whether a particular tax adjustment is allowed for your filing situation.
How to use the Adjusted Gross Income calculator
What this calculator does
This calculator estimates adjusted gross income (AGI) by adding the income categories shown in the form and subtracting the entered adjustments to income. The arithmetic follows the identity AGI = gross income – adjustments to income. The IRS describes AGI as gross income from all sources reduced by certain adjustments, and AGI is determined before the standard or itemized deduction. For the official definition and where AGI appears on a return, see the IRS definition of adjusted gross income. This tool is an estimator, not tax-preparation software: it does not determine whether you qualify for a deduction, apply every limitation or phaseout, calculate taxable income, or calculate tax owed.
When to use it
Use the calculator when you want a quick AGI estimate before completing a return, when you are checking the arithmetic behind an AGI figure, when you are comparing how a legitimate adjustment changes AGI, or when you want a clean spreadsheet record of the inputs used in an estimate. AGI can matter for filing and for eligibility calculations elsewhere in the tax system, but those later rules may use AGI or a modified version of AGI differently.
How to calculate
- The calculator opens with a complete demonstration: $87,700.00 of gross income, $13,600.00 of adjustments, and $74,100.00 of AGI. A validated example XLSX is immediately available through Download Excel.
- Replace any demonstration amount with your own annual U.S. dollar amount. You may enter plain numbers such as 72000, grouped values such as 72,000.00, or a leading dollar sign. Blank fields count as zero. Scientific notation and decimal-comma formats are rejected to avoid ambiguous interpretation.
- Read Gross income, Total adjustments to income, and Adjusted gross income in the results panel. The detail table shows each input, its amount, and whether it adds to or subtracts from AGI.
- Select Download Excel to export the current validated model to a real XLSX workbook with Summary, Inputs, Breakdown, and Notes sheets. The workbook is rebuilt from the current controls at click time.
- Select Reset to clear the demonstration and all entered amounts. Reset does not restore the sample. With every field blank, the result returns to a neutral empty state and Excel export is disabled until you enter a valid meaningful amount again.
Input guide
Optional annual USD, zero or higher. Example: $72,000. Higher taxable wages increase gross income and AGI dollar for dollar. Do not enter after-tax take-home pay.
Optional annual USD; a properly reportable net loss may be negative. Example: $8,000. Positive net income raises AGI, while a valid loss lowers it. Use a net tax amount, not gross receipts.
Optional annual USD; negative values are accepted when a properly reportable loss belongs in this grouped category. Example: $1,200. Enter taxable amounts rather than account balances or cash distributions that are not taxable.
Optional annual USD and may be negative. Example: $2,500. A positive taxable net gain raises AGI and a properly determined deductible net loss lowers it. Use the amount applicable to the return, not raw sale proceeds.
Optional nonnegative annual USD. Example: $4,000. Enter the taxable portion that belongs in gross income; do not assume the full cash distribution is taxable when your tax documents show otherwise.
Optional nonnegative annual USD adjustment. Example: $6,000. Only enter the amount that is actually deductible as an adjustment to income; eligible amounts lower AGI dollar for dollar.
Optional nonnegative annual USD adjustment. Example: $1,200. Enter deductible interest, not principal or total loan payments. Eligibility and limits can depend on tax-year rules and income.
Optional nonnegative annual USD adjustment. Example: $300. Enter the eligible tax-year amount after applying the relevant rules rather than every classroom purchase you made.
Optional nonnegative annual USD adjustment. Example: $2,500. Use the eligible HSA deduction amount. Contributions already excluded from taxable wages should not be duplicated here.
Optional nonnegative annual USD adjustment. Example: $3,600. Use only a qualified deductible amount, such as an eligible self-employed health insurance deduction, rather than all household premiums automatically.
Output guide
Gross income is the sum of the five income inputs, shown in USD. It rises or falls with those income values and may be reduced by valid loss entries. Total adjustments to income is the sum of the five deduction inputs, shown as a positive USD total even though it is subtracted in the formula. Adjusted gross income is the resulting USD estimate and can be negative when adjustments and losses exceed positive income; a negative AGI does not mean negative tax. The summary pills repeat these same three canonical results for quick scanning. In the AGI calculation detail table, Category identifies income, adjustment, total, or result; Line item names the source; Amount reports the entered or calculated USD value; and AGI effect makes the sign explicit, so income generally appears as a positive effect and adjustments as a negative effect. These are arithmetic estimates, not recommendations.
Worked example
The opening example uses income of $72,000 salary, $8,000 business income, $1,200 interest/dividends/royalties, $2,500 capital gains, and $4,000 pension or IRA distributions. Those values sum to $87,700.00 gross income. The example then enters $6,000 retirement/IRA contributions, $1,200 student loan interest, $300 educator expenses, $2,500 HSA contributions, and $3,600 health insurance premiums, totaling $13,600.00 of adjustments. Applying the calculator formula gives $87,700.00 – $13,600.00 = $74,100.00 adjusted gross income. The first-open results, detail table, and exported workbook all use those same values.
Learn more
The current IRS Schedule 1, Additional Income and Adjustments to Income shows categories used to report additional income and adjustments. The IRS also explains where to find AGI and common reasons it is used. For broader individual federal income-tax guidance, consult IRS Publication 17. Tax-year limits and eligibility rules change, so verify the amount that belongs in each adjustment before using this arithmetic estimate for a filing decision.
How the model should be interpreted
AGI is an intermediate tax figure, not the same thing as taxable income, take-home pay, or modified adjusted gross income. Standard and itemized deductions generally occur after AGI, and many credits or contribution rules apply separate definitions and thresholds. This calculator intentionally keeps the model narrow: it mirrors the reference workflow by totaling the listed income categories and subtracting the listed adjustment categories. If your return contains other income or adjustments, combine them into the closest supported category only when that treatment is appropriate, or use your tax forms or tax software for the complete calculation.
A lower AGI may affect later tax calculations, but entering a larger deduction here is only valid when the underlying tax rule permits that deduction. Keep supporting records and use the applicable tax-year instructions. The calculator accepts negative values only for income categories that can reasonably represent a properly reported loss; deduction fields reject negative amounts because the interface expects the positive amount to subtract.