Appeal a Medicare IRMAA determination

The usual appeal period is 60 days after you receive the notice

Social Security generally presumes that you received an IRMAA notice five days after the date printed on it unless you show that it arrived later. Follow the exact instructions in your notice and submit early.

1. Identify the decision and premium year

Locate the Social Security notice that explains the IRMAA determination. Record its date, when it actually arrived, the Medicare coverage involved, the premium year, the tax year and filing status used, and the reason Social Security gave for the adjustment.

An IRMAA appeal challenges Social Security's determination about the additional Part B or Part D amount. It is not a Medicare coverage appeal and it is not filed with a Medicare Advantage or drug plan.

2. Decide between reconsideration and a new initial determination

Request reconsideration when you disagree with the initial determination itself. A different process—called a new initial determination—usually applies when a qualifying life-changing event reduced household income, when you filed an amended federal tax return, when you have IRS proof that the tax information Social Security received was wrong, or when another circumstance listed in the IRMAA rules allows newer information to be used.

If your only argument is that IRS information was incorrect, federal regulations say Social Security will dismiss the reconsideration request and direct you to obtain correction evidence from IRS and request a new initial determination. Use the notice and Social Security's current instructions to choose the route.

3. Protect the 60-day deadline

A beneficiary or authorized representative generally has 60 days after receipt of the IRMAA determination notice to request reconsideration. Receipt is normally presumed five days after the notice date. If the request is late, include a written explanation and any evidence supporting good cause for missing the deadline; an extension is not automatic.

4. Choose a filing channel

Social Security currently permits a non-medical reconsideration request online. Its IRMAA publication also directs people to the electronic appeal service and says the request can be filed online from outside the United States. A written request may be made with Form SSA-561-U2, Request for Reconsideration. The current official PDF is marked Form SSA-561 (08-2025) and says to discontinue prior editions.

If filing on paper, use the current form page and send the completed request to the local Social Security office identified by Social Security. Keep sensitive identifiers out of WhatDoIFile; this site does not receive or store appeal forms.

5. Explain why the determination should change

State the specific issue being appealed and explain the requested correction. Match each point to supporting evidence. Depending on the issue, useful records may include the complete IRMAA notice, the federal tax return for the year Social Security used, filing-status records, IRS correspondence, or documents showing that Social Security applied the information incorrectly.

Do not send original documents unless Social Security specifically requires them. Redact or protect sensitive information in copies kept for personal use, and follow Social Security's instructions for any document it must receive in full.

6. Keep proof of submission

Save the electronic confirmation or a copy of the signed form, supporting documents, fax confirmation, certified-mail record, or office receipt. Note the date submitted and the office or online channel used. These records help if Social Security cannot locate the request or questions whether it was timely.

7. Continue handling the premium while the appeal is pending

Filing an IRMAA appeal does not by itself stop the income-related premium amount. Social Security's operating instructions state that the amount generally continues while the appeal is pending. If the decision changes, Social Security makes retroactive corrections to incorrect amounts. Follow current billing instructions and contact Social Security or Medicare promptly if a payment problem could affect coverage.

8. Review the reconsideration decision

Social Security will issue a reconsidered determination. If you still disagree, the next level is generally a hearing before an administrative law judge in the Department of Health and Human Services' Office of Medicare Hearings and Appeals. The notice explains the deadline and current filing method. Later review may proceed to the Medicare Appeals Council and, when legal requirements are met, federal court.

IRMAA appeals can involve tax records and administrative-review rules. Consider qualified legal or tax help when the dispute is complex. This page gives general procedural information and does not determine whether an appeal will succeed.