Irmaa 2024 Medicare Rates Brackets. If you have medicare part b and/or medicare part d (prescription drug coverage), you could owe a monthly surcharge based on your annual income. Because the formula compares the average of 12 monthly cpi numbers over the average of 12 monthly cpi numbers in a base period, even if prices stay the same in the following months, the average of the next 12 months will still be higher than the average in the previous 12 months.

Medicare beneficiaries who have to pay. I’m particularly interested in which irmaa bracket estimation you are using for 2024 (2022 magi) and why you are comfortable with that estimate.