2025 Irmaa Brackets For Medicare Premiums. Irmaa is a surcharge added to your medicare parts b and d premiums, based on income. The 2025 irmaa brackets for medicare parts b and d are now available.
Here is how you can learn about the change and how to avoid irmaa. To determine whether you are subject to irmaa charges, medicare uses the adjusted gross income you reported on your irs tax return two years ago.