What is the Medicare Part D IRMAA?

The Income-Related Monthly Adjustment Amount or “IRMAA” applies to Medicare beneficiaries with high incomes. For example, if your 2017 reported yearly income as a single taxpayer is greater than , (greater than filing jointly), you will be responsible for paying an additional $12.40. This is in addition to your monthly premium. The IRMAA will be further adjusted as income levels increase. Important points about the Part D IRMAA to keep in mind:

  • If you owe an IRMAA, Social Security will send you a letter notifying you that the extra amount you owe will be added to your Medicare Part D premium.
  • The Part D IRMAA is billed directly by the Centers for Medicare and Medicaid Services, which means any IRMAA payment should not be sent to your prescription drug plan.
  • If you do not pay your IRMAA, you risk disenrollment from your Medicare Part D plan.
  • More information about the Part D IRMAA can be found on Medicare’s website.

Return to the Medicare FAQs section to view more answers to other commonly asked questions about Medicare prescription drug coverage.

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