It's your AGI plus Tax-Exempt interest.
On 2021 or 2022 tax returns, that's line 11 plus line 2a of your form 1040.
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For IRMAA purposes, I suspect.
The number that Medicare will use in determining if extra premiums will be assessed in paying Part B and Part D Medicare premiums the next year?
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
