Part B-Income Related Adjustments

Part B Monthly premium: 

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.

If your yearly income in 2019 (for what you pay in 2021) was You pay each month (in 2021)
File individual tax return File joint tax return File married & separate tax return
$88,000 or less $176,000 or less $88,000 or less $148.50
above $88,000 up to $111,000 above $176,000 up to $222,000 Not applicable $207.90
above $111,000 up to $138,000 above $222,000 up to $276,000 Not applicable $297.00
above $138,000 up to $165,000 above $276,000 up to $330,000 Not applicable $386.10
above $165,000 and less than $500,000 above $330,000 and less than $750,000 above $88,000 and less than $412,000 $475.20
$500,000 or above $750,000 and above $412,000 and above $504.90

Part B deductible & coinsurance

In 2021, you pay $203 for your Part B deductible. After you meet your deductible for the year, you typically pay 20% of the Medicare-approved amount for these: