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IRMAA Appeals

Understanding the IRMAA Determination Notice and Response Process

Verified against SSA POMS as of August 17, 2026

The short answer

IRMAA Determination Notices are sent by the SSA to inform beneficiaries about their Income-Related Monthly Adjustment Amount (IRMAA) based on IRS-supplied Modified Adjusted Gross Income (MAGI) data. The notice includes your appeal rights. You have 60 days from receipt of the notice to file an appeal, with receipt deemed 5 days after the notice date unless proven otherwise. If circumstances regarding your income change or new information is available, you can request a new initial determination. Notifications about IRMAA also address changes in Medicare Part B or prescription drug coverage if applicable.

IRMAA Determination Notice and Appeal Rights

The Social Security Administration (SSA) uses data from the Internal Revenue Service (IRS) to initially determine a beneficiary's Income-Related Monthly Adjustment Amount (IRMAA). Once an IRMAA determination is made, SSA informs the beneficiary through a notice that includes the determination and outlines the beneficiary's right to appeal. Beneficiaries have 60 days from the receipt of this notice to file a request for reconsideration of the IRMAA determination notice. The date of receipt is considered to be 5 days after the date on the notice unless proven otherwise. 

Source
HI 01140.001 View source ›

IRMAA Determination and Reconsideration Notices

IRMAA notices provide beneficiaries with information about SSA’s determination based on their modified adjusted gross income (MAGI). Notices for Medicare Part B and Part D enrollees include information about the higher premium and how it was determined. The notice also provides details about how beneficiaries can appeal the determination or request a new initial determination. Predetermination notices, however, do not include appeal rights and only indicate planned actions. Additionally, there are Reconsideration notices, which can either dismiss, affirm, or reverse an earlier determination by the SSA that was challenged by the beneficiary. 

Source
HI 01190.015 View source ›

Levels of IRMAA Appeals

There are four levels of IRMAA appeals: 1) Reconsideration processed by the SSA field office, 2) Hearing before a Department of Health and Human Services (DHHS) Administrative Law Judge (ALJ) in the Office of Medicare Hearings and Appeals (OMHA), 3) Review by the DHHS Medicare Appeals Council (MAC), and 4) Federal Court Action. If a beneficiary disagrees with the IRMAA determination, they may not always need to appeal, as a new initial determination could resolve their issue without the need for an appeal. 

Source
HI 01140.001 View source ›

Request for New Initial Determination

Beneficiaries can request a new initial determination if they have a qualifying circumstance, such as a change in MAGI due to life events, or more recent/corrected tax data. This request should be filed within the appeals period, or later only if good cause is shown. New initial determinations use beneficiary-provided data rather than IRS data if the qualifying circumstances are proven. 

Source
HI 01120.001 View source ›

Annual Verification Notices

Annual verification notices involve an examination of IRS data to verify IRMAA levels. A predetermination notice is sent if there is a plan to adjust IRMAA based on the verification. Beneficiaries may respond with corrected data to prevent changes before implementation. Correction notices following annual verifications include rights to appeal. 

Source
HI 01130.030 View source ›

Frequently asked

How does SSA notify me of an IRMAA determination?

SSA sends you a notice informing you of the IRMAA determination and your appeal rights. This notice is sent based on the IRS data used to compute your MAGI.

What is the deadline to respond to an IRMAA notice?

You have 60 days from receipt of the notice, considered as 5 days after the date on the notice unless otherwise proven, to request reconsideration.

Can I appeal an IRMAA predetermination notice?

A predetermination notice does not include appeal rights. However, you can supply new information to request a new initial determination. If a beneficiary insists on filing an appeal based upon a predetermination notice, the SSA must accept the appeal request.

How can I request a new initial determination?

File a request either verbally or in writing with evidence of a qualifying circumstance, such as a life-changing event or corrected tax information.

What happens if the IRS provides incorrect tax data?

You should contact the IRS to correct the information and provide SSA with a letter from the IRS acknowledging the error for a new initial determination.

Reviewed by: Todd Valles.  ·  Source data last verified: August 17, 2026, against the live SSA POMS.  ·  This page is part of the ARPI Knowledge Base and is reviewed on a quarterly cycle for accuracy against current SSA guidance.
The Advanced Retirement Planning Institute (ARPI) Knowledge Base provides authoritative educational reference material based on SSA POMS, CFR Title 20, the SSA Handbook, CMS regulations, and Medicare.gov guidance. Not individualized legal, financial, or benefits advice — verify current rules with the Social Security Administration or Medicare.gov before making filing decisions.