Yes, MAGI can be confusing mostly because there are multiple MAGIs for different purposes.
Modified Adjusted Gross Income (MAGI) for calculating Income Related Monthly Adjustment Amount (IRMMA) is the sum of:
- the beneficiary’s adjusted gross income (AGI) (found on line 11 of the Internal Revenue Service (IRS) tax filing form 1040), plus
- tax-exempt interest income (line 2a of IRS Form 1040).
There are no other add backs and Roth distributions are not included as interest.
The information that the SSA uses to determine your IRMMA is the numbers from 2a and 11 of your 1040 and your filing status.
The Social Security Administration uses your tax information from two years prior to determine your IRMMA. Click here to see the tables they use to determine your Medicare premium.
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