Estimated 2024 Irmaa Brackets. If your modified adjusted gross income, as reported on your irs tax return from 2 years ago, is above the threshold, then the irmaa (income related monthly adjustment amount). The irmaa is calculated on a sliding scale with five income brackets topping out at $500,000 and $750,000 for individual and joint filing, respectively.
The income limit for irmaa in 2024 is $103,000 for individuals and $206,000 for couples. The role of modified adjusted gross.