Add back deductions to AGI to find MAGI for IRA, ACA and other limits.
Please do not make financial decisions based on these results.
What is the Modified Adjusted Gross Income (MAGI) Calculator?
Add back deductions to AGI to find MAGI for IRA, ACA and other limits. To use the Modified Adjusted Gross Income (MAGI) Calculator, enter agi, tax-exempt interest, student loan interest deducted, foreign earned income exclusion; it returns magi, add-backs, room below roth limit (single, 2026), and shows them instantly as you type.
How income is taxed
Federal income tax is progressive, so higher slices of income are taxed at higher rates. Your filing status, deductions and pre-tax contributions determine your taxable income. Start with the income tax calculator and then see the effect on your paycheck with the take-home paycheck calculator.
How to use the Modified Adjusted Gross Income (MAGI) Calculator
- Enter your numbers. The inputs are AGI ($), Tax-exempt interest ($), Student loan interest deducted ($), Foreign earned income exclusion ($). Use the tax year and filing status that apply to you, and gross figures unless a field says otherwise. Fields marked optional can stay at zero.
- Read the result. The highlighted box gives the MAGI, and the cards below show Add-backs, Room below Roth limit (single, 2026). Tables and charts break it down further.
- Test other scenarios. Results update as you type. Change one value at a time to see what drives the answer, and press Reset to go back to the defaults.
Formula and how it works
Example with real numbers
Here is the Modified Adjusted Gross Income (MAGI) Calculator using the default values shown in the calculator above:
Inputs
| AGI ($) | 138,000 |
|---|---|
| Tax-exempt interest ($) | 1,200 |
| Student loan interest deducted ($) | 2,000 |
| Foreign earned income exclusion ($) | 0 |
Results
| MAGI | $141,200.00 |
|---|---|
| Add-backs | $3,200.00 |
| Room below Roth limit (single, 2026) | $11,800.00 |
With these inputs the calculator returns MAGI: $141,200.00. Change any value in the calculator to see how the result moves.
What if you change one input?
Sensitivity check: raising AGI ($) from 138,000 to 165,600 (about 20% higher) and leaving everything else as in the example above changes the results like this:
| Result | Example | After the change | Change |
|---|---|---|---|
| MAGI | $141,200.00 | $168,800.00 | +19.5% |
| Add-backs | $3,200.00 | $3,200.00 | 0% |
| Room below Roth limit (single, 2026) | $11,800.00 | -$15,800.00 | -233.9% |
The input that moves the result most is the one to check twice. Change it in the calculator above to test your own case.
What the results tell you
The results panel of the Modified Adjusted Gross Income (MAGI) Calculator reports MAGI, add-backs and room below roth limit (single, 2026). Compare these figures while changing one input at a time, and use the related calculators below to look at the same situation from another angle.
Method and limits. This calculator applies the formula in the section above to your inputs, in your browser; nothing you enter is stored on our servers. Tax rules change every year and depend on your full situation (state, filing status, credits), so treat the result as an estimate and confirm it with the IRS or a tax professional. It is for information, not financial, tax or legal advice.
Frequently asked questions
Which MAGI limit applies to Roth IRA contributions?
For 2026 the phase-out starts at $153,000 (single) and $242,000 (married filing jointly).
What is the difference between gross and net pay?
Gross pay is what you earn before deductions. Net pay, or take-home pay, is what remains after taxes and deductions.
Do these calculators include state income tax?
Federal tax is calculated from the official brackets. For state tax you enter a rate, because state rules vary widely.
Are the results guaranteed?
No. Results depend entirely on the numbers you enter and the formulas shown on this page. Please do not make financial decisions based on them alone; confirm important figures with a licensed professional.
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