Medicare Part B Income Limits 2025 Calculator. (for 2025, the standard part b premium amount is $185.00. Irmaa is a fee that may be added to your medicare part b and part d premiums if your yearly income exceeds a certain amount.

Get an estimate of when you’re eligible for medicare, and estimate your premium amount. For 2025, medicare irmaa thresholds begin at $106,000 for singles and $210,000 for married couples filing jointly.