Please see this answer from MollsBBU.
Your tax return does not display your MAGI, you will need to calculate it by first checking your AGI. To locate your AGI:
- With your return open, click My Account
- Then, Tools
- Under "Other Helpful Links", click View Tax Summary
- Your Adjusted gross income should be third on the list
Next, to calculate your modified adjusted gross income (MAGI), take your AGI and add back certain deductions. Many of these deductions are rare, so it's possible your AGI and MAGI can be identical. According to the IRS, your MAGI is your AGI with the addition of the following deductions, if applicable:
- Student loan interest
- One-half of self-employment tax
- Passive loss or passive income
- IRA contributions, taxable social security payments
- The exclusion for income from U.S. savings bonds
- The exclusion under 137 for adoption expenses
- Rental losses
- Any overall loss from a publicly traded partnership
