Medicare Irmaa 2025 Brackets. The amount you’ll pay for your medicare premiums in 2025 hinges on your modified adjusted gross income (magi). To determine whether you are subject to irmaa charges, medicare uses the adjusted gross income you.

The irmaa for part b and part d is calculated according to your income. Monthly medicare premiums for 2025 the standard part b premium for 2025 is $174.70.