Retirement tax questions

And about Social Security.   When you turn 65 I think you need to start paying Medicare premiums even if you don’t take Social Security benefits.   And if your income was high the previous year (or 2 years prior) you pay an increased Medicare premium called IRMAA.  Which I got hit with because we cashed in a lot of savings bonds.  The Medicare premium was $174 and I had to pay another $174 and so did my husband.   So $348 each.  

IRMAA  uses your AGI plus tax exempt interest on 1040 line 2a.

SSA - POMS: HI 01101.010 - Modified Adjusted Gross Income (MAGI) - 01/05/2024