What Is the Medicare IRMAA, and When Does It Apply?

The Medicare income-related monthly adjustment amount, or IRMAA, is a surcharge on Medicare premiums for Medicare Part B (medical insurance) and Part D prescription drug plans. It applies only to Medicare beneficiaries who have a modified adjusted gross income above $91,000 ($97,000 in 2023) for an individual return and $182,000 ($194,000 in 2023) for a joint return. If your earnings are below this threshold, IRMAA doesn’t apply to you.

How is the Medicare IRMAA calculated?

The Medicare IRMAA for Part B and Part D is based on your income and is calculated on a sliding scale. When calculating whether IRMAA charges apply to you, Medicare uses the adjusted gross income amount you reported on your IRS tax return from two years prior to the current year.

How much will I have to pay if I owe Medicare IRMAA?

Your final IRMAA determination depends on your income and your tax filing status. Here’s the breakdown.

Medicare Part B IRMAA

If the Part B IRMAA applies to you, the amount you owe will be…

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This article was written by Roberta Pescow and originally published on www.nerdwallet.com