2024 Medicare Irmaa Tables. If you have medicare part b and/or medicare part d prescription drug coverage, you could owe a monthly surcharge based on an income related monthly adjustment amount (irmaa). Understanding the 2024 irmaa brackets:

Irmaa is a surcharge added to your medicare parts b and d premiums, based on income. To determine whether you are subject to irmaa charges, medicare uses the adjusted gross income you.