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Reviewed August 4, 2026

Medicare IRMAA appeal checklist

Use this checklist to organize a request for Social Security to reconsider a Medicare Part B or Part D IRMAA determination. It does not replace the notice or Social Security's current filing instructions.

Before choosing the appeal route

  • Keep the complete IRMAA determination notice and envelope.
  • Record the notice date and the date it actually arrived.
  • Identify the premium year, tax year, filing status, and income information Social Security used.
  • Confirm whether the issue is a disagreement with the determination or new/corrected information that supports a new initial determination.
  • Use the SSA-44 route for a qualifying life-changing event with lower income; do not treat SSA-44 as the general appeal form.
  • If IRS data itself was wrong, obtain IRS correction evidence and follow the new-initial-determination instructions.

Deadline checklist

  • Calculate 60 days from receipt of the notice, following the notice's instructions.
  • Remember that Social Security usually presumes receipt five days after the notice date unless you show later delivery.
  • Submit before the final day and keep proof.
  • If late, include a detailed good-cause explanation and supporting evidence.

Request checklist

  • Use Social Security's current online non-medical reconsideration service or the current Form SSA-561-U2.
  • Verify that the paper PDF is the current edition; the official form reviewed on August 4, 2026 is marked 08-2025 and discontinues prior editions.
  • Identify the issue as an IRMAA determination and state the premium year.
  • Explain each reason for disagreement in clear, numbered points.
  • State the correction requested without promising or assuming an outcome.
  • Sign and date where required and use the filing channel identified by Social Security.

Evidence checklist

  • Copy of the complete IRMAA notice.
  • Relevant federal tax return and schedules for the year used.
  • Documents supporting the correct filing status or other disputed fact.
  • IRS correspondence when the IRS corrected information.
  • A short index of attachments.
  • Copies for personal records, with sensitive information protected.

Submission and tracking checklist

  • Save the online confirmation number or submission screen.
  • For paper or fax, keep a complete copy and delivery confirmation.
  • Record the office, date, method, and any representative who assisted.
  • Continue following Medicare premium billing instructions while the appeal is pending.
  • Open every Social Security or HHS notice promptly.
  • If the reconsideration is unfavorable, note the hearing deadline immediately.
Do not send personal identifiers to WhatDoIFile

The official request may require identifying information. Submit it only through a Social Security channel. WhatDoIFile does not collect Social Security numbers, Medicare numbers, tax returns, or appeal records.

Official sources

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