Certain enrollees in Medicare part B pay higher insurance premiums based on their modified adjusted gross income, or MAGI. I looked, an cannot find a simple calculator which calculates MAGI, there are none on either the IRS or SSA websites. Where may I find, or do you have, a MAGI calculator which will calculate MAGI, for the purposes of Part B, Medicare insurance premiums?

Hi,

I don't know of any MAGI calculators. Social Security provides the following publication on their website that simply states that MAGI is your total adjusted gross income plus any tax exempt interest income: (https://www.ssa.gov/pubs/EN-05-10536.pdf).

Best, Jerry