Some people automatically get
, and some people need to sign up for Part B. Learn how and when you can sign up for Part B.
If you don't sign up for Part B when you're first eligible, you may have to pay a late enrollment penalty.
How much does Part B cost?
Part B premiums
You pay a premium each month for Part B. Your Part B premium will be automatically deducted from your benefit payment if you get benefits from one of these:
- Social Security
- Railroad Retirement Board
- Office of Personnel Management
If you don’t get these benefit payments, you’ll get a bill.
Most people will pay the standard premium amount. If your modified adjusted gross income is above a certain amount, you may pay an Income Related Monthly Adjustment Amount (IRMAA). Medicare uses the modified adjusted gross income reported on your IRS tax return from 2 years ago. This is the most recent tax return information provided to Social Security by the IRS.