MAGI Calculator - MAGI Worksheet Check

MAGI calculator results estimate modified adjusted gross income from adjusted gross income, add-backs, and allowed subtractions. Use it before you compare income to Roth IRA contribution limits, Marketplace health insurance savings, education rules, child tax credit phaseouts, Medicare premium brackets, or other income-tested programs.

• • Retirement contributions: Check whether a Roth IRA or traditional IRA worksheet might reduce a direct contribution or deduction.
• • Marketplace coverage: Estimate the income figure used for Marketplace premium tax credit and cost-sharing reviews.
• • Tax planning: Separate AGI from MAGI before you compare income with credit, deduction, or extra tax thresholds.
• • Medicare planning: Review whether income is near an IRMAA bracket before a future premium year.

MAGI is purpose-specific, not one universal tax-return line. A Roth IRA check, a Marketplace coverage check, and a general tax credit review can produce different numbers from the same return.

Use the result as a planning worksheet. If it is close to a phaseout or eligibility threshold, compare it with the exact IRS instructions for that item or ask a tax professional to review the return facts.

If you still need the starting income figure, the AGI Calculator can estimate adjusted gross income before you enter MAGI add-backs.

The calculator starts with AGI, then adds the items required by the selected MAGI purpose and subtracts only items that the selected worksheet allows. The result is the income figure you can compare with the threshold for that same purpose.

• AGI: Adjusted gross income, usually from Form 1040 line 11.
• Add-backs: Deductions, excluded income, tax-exempt income, or nontaxable benefits that the worksheet tells you to add.
• Subtractions: Items the selected worksheet says to remove before the final MAGI total.
• Purpose: The program or tax rule being checked, such as Roth IRA or Marketplace coverage.

General mode lets you mirror the worksheet in the source document you are using. Marketplace mode narrows the add-backs to untaxed foreign income, nontaxable Social Security, tax-exempt interest, and any purpose-specific additions. Roth IRA mode uses IRA add-backs and subtracts Roth conversion or qualified-plan rollover income entered in the subtraction fields.

The output shows final MAGI, total add-backs, total subtractions, and difference from AGI. In Roth IRA mode, it also compares the result with 2026 Roth IRA phaseout bands for the selected filing status.

According to Internal Revenue Service, MAGI starts with AGI and then adds or subtracts the items listed for the specific benefit, credit, contribution, or tax.

According to IRS Notice 2025-67, the 2026 Roth IRA contribution phaseout range is $242,000 to $252,000 for joint filers and $153,000 to $168,000 for single filers and heads of household.

After MAGI planning, the Federal Income Tax Calculator helps compare tax liability using taxable income and filing status instead of MAGI.

A good MAGI estimate depends less on arithmetic and more on choosing the right worksheet. These concepts keep the result tied to the decision you are making.

Do not add every line you have heard associated with MAGI unless the worksheet requires it. Tax-exempt municipal bond interest is central for some health and Social Security-related calculations, while an IRA deduction add-back matters for IRA worksheets.

When AGI is missing, estimate it first and then return to this worksheet. A cleaner AGI input makes the threshold comparison more useful.

When student loan interest is part of the worksheet, the Student Loan Payment Calculator can help review the payment side of the same debt picture.

Use this MAGI calculator in the same order you would work through a tax worksheet: choose the purpose, enter AGI, add only required amounts, and read the result beside the relevant rule.

1. 1 Choose the purpose: Pick general worksheet, Marketplace coverage, or Roth IRA contribution so the calculator uses the right add-back list.
2. 2 Enter AGI: Use the adjusted gross income amount from your return or a separate AGI estimate.
3. 3 Add required items: Enter only the add-backs that apply to the selected worksheet, such as foreign income exclusion or tax-exempt interest.
4. 4 Enter allowed subtractions: For Roth IRA mode, include Roth conversion income or qualified-plan-to-Roth rollover income only when the worksheet says to subtract it.
5. 5 Read the comparison: Use the MAGI result, difference from AGI, and Roth status line to decide what needs closer review.

For a Roth IRA check, a single filer with $150,000 of AGI, $1,000 of IRA deduction add-back, $1,000 of student loan interest add-back, and $3,000 of foreign earned income exclusion has MAGI of $155,000. For 2026, that places the filer inside the Roth IRA phaseout range rather than below it.

If Roth IRA mode shows a phaseout concern, the Roth IRA Calculator can model contribution growth after you confirm the allowed contribution amount.

The calculator is useful when you need a traceable worksheet before looking at a program rule, tax form, or advisor question.

• • Separates AGI from MAGI: The difference from AGI shows exactly how much the worksheet changed the income figure.
• • Supports common planning decisions: Roth IRA, Marketplace coverage, and general tax-credit checks are handled without combining incompatible rules.
• • Shows the add-back total: Seeing the total makes it easier to spot an omitted tax-exempt interest amount or an add-back entered in the wrong mode.
• • Flags Roth IRA phaseout status: The status line tells you whether the calculated MAGI is below, inside, or above the 2026 Roth IRA range for the selected filing status.
• • Prepares advisor questions: You can bring the AGI, add-back list, and threshold distance to a tax preparer instead of asking a broad eligibility question.

This is most helpful when income is near a cutoff. If the result is close, the output helps you decide which line item needs documentation before you act.

Contribution limits and phaseout bands can change by tax year. This page uses 2026 Roth IRA phaseout bands for the comparison output and keeps the calculation itself separate from annual limits.

For broader retirement contribution planning, the IRA Calculator can compare IRA growth assumptions after MAGI confirms contribution room.

The arithmetic is simple, but inputs can be easy to misclassify. Review these factors before relying on the number for a filing or enrollment decision.

• • This calculator does not file a tax return, compute taxable income, or replace a program's official worksheet.
• • The Roth IRA comparison uses published 2026 phaseout bands; other credits, deductions, and benefits may use different years or thresholds.
• • If dependents have income, a Marketplace household calculation may require separate dependent income handling outside this worksheet.

For Marketplace coverage, the household income estimate is forward-looking for the coverage year, not merely last year's filed return. Update it when pay, Social Security, self-employment income, or investment income changes.

For Medicare premiums, MAGI can affect IRMAA brackets after a lookback to an earlier tax return. A life-changing event may require direct contact with Social Security.

According to HealthCare.gov, Marketplace MAGI is AGI plus untaxed foreign income, nontaxable Social Security benefits, and tax-exempt interest, if any.

When nontaxable Social Security affects a worksheet, the Social Security Calculator can provide context for benefit timing and income planning.