Part B

The standard Part B premium amount in 2021 is $148.50. Most people pay the standard Part B premium amount. If your modified adjusted gross income as reported on your IRS tax return from 2 years ago is above a certain amount, you'll pay the standard premium amount and an Income Related Monthly Adjustment Amount (IRMAA). IRMAA is an extra charge added to your premium.

 

Part D

The chart below shows your estimated prescription drug plan monthly premium based on your income as reported on your IRS tax return. If your income is above a certain limit, you'll pay an income-related monthly adjustment amount in addition to your plan premium.