What Or Who Is IRMAA ?

  • IRMAA stands for Income-Related Monthly Adjustment Amount
  • An IRMAA is a surcharge added to you monthly Medicare Part B and Part D premiums based on your annual income
  • The Social Security Administration (SSA) uses you income tax information from the previous two years to determine if you owe an IRMAA in addition to your monthly premium
  • The surcharge amount you’ll pay depends on factors like your income bracket and how you’ve filed your taxes
  • IRMAA decisions can be appealed if there is an error in the tax information used or if you’ve experienced a life changing event that reduced your income

The Social Security Administration (SSA) determines your IRMAA. This is based on information provided by the Internal Revenue Service (IRS). You could receive a notice from the SSA regarding an IRMAA at any time of the year.

If the SSA determines that an IRMAA applies to your Medicare premiums, you will receive a predetermination notice in the mail. This will inform you about your specific IRMAA and will also include such information as:

  • How the IRMAA was calculated
  • What to do if the information used to determine the IRMAA is incorrect
  • What to do if you had a reduction in income or life changing event

You’ll then receive an initial determination in the mail 20 days or more after receiving the predetermination notice. This will include information about the IRMAA, when it goes into effect, and the steps that you can take to appeal.

You won’t have to take any additional action to pay the surcharges associated with the IRMAA as they will automatically be added to your premium bills

Each year, the SSA reevaluates whether an IRMAA should apply to your Medicare premiums. So depending on your income, an IRMAA could be added, updated or discontinued.


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