Standard Part B$202.90per month · per beneficiary
Individual first threshold$109,0002026 published schedule
Part D base benchmark$38.99not a plan premium
Normal lookback2024tax return for 2026
Standard Part B$202.90
Individual first threshold$109,000
Official 2026
Five surcharge tiers plus the zero-surcharge baseline · CMS/SSA 2026 scheduleCMS source (opens in a new tab)
Appeal preparation guide

Two different problems. Two different routes.

Understand the eight life-changing events, the distinction between a revised determination and reconsideration, and the evidence to organize before contacting SSA.

Source-linked guidanceNo eligibility decision is made hereNot an SSA submission

A spouse needs their own request

An adjustment for one spouse does not automatically change the other's determination. Each affected beneficiary should contact SSA. Report total AGI plus tax-exempt interest, including other taxable income; retirement does not exclude a Roth conversion or capital gain from AGI. Processing experiences shared online are not a guaranteed outcome or deadline.

This page does not decide your appeal

This guide does not decide eligibility, collect identifying numbers or submit SSA forms. Use the current official instructions for your facts. A preparation checklist is not an approval decision.
First distinction

New initial determination versus formal reconsideration

SSA distinguishes a new initial determination after certain life-changing events from a formal reconsideration of a determination. Verify the current official instructions for your notice.
QuestionNew initial determinationFormal reconsideration
What is it?A request for SSA to redetermine IRMAA using more recent income or a changed filing situation after a qualifying event.A review request when you disagree with an SSA determination, including an IRMAA determination where the reconsideration route applies.
Typical triggerOne of SSA's life-changing events, such as work stoppage, work reduction, death of a spouse, marriage, divorce, or a qualifying pension or property loss.SSA used information you believe is wrong, or you disagree with the determination after reviewing the notice and the rules.
Official formSSA-44 is the form SSA provides for reporting a qualifying life-changing event.SSA-561 is the form used to request reconsideration.
What it is notNot a guarantee of a lower tier, and not the same as a formal appeal. SSA makes the decision.Not an SSA-44 life-changing-event request, even if the underlying concern is income-related.
SSA life-changing events

The eight events the navigator must recognize

Summary of SSA's life-changing-event categories. Evidence is not a single universal document; SSA may accept different proof and may request additional records.
EventWhat to investigateEvidence categories
Death of spouseThe death changes relevant income, filing status, or household circumstances.Death certificate or SSA-recognized death record; updated income evidence.
MarriageMarriage changes the filing status and the MAGI used for the determination.Marriage certificate or acceptable equivalent; relevant tax information.
Divorce or annulmentA legal termination changes household income or filing status.Divorce decree or annulment order; updated income evidence.
Work stoppageThe beneficiary or spouse stops working.Employer letter, separation evidence, or an acceptable signed statement.
Work reductionThe beneficiary or spouse reduces work hours, such as moving from full-time to part-time work, with a qualifying reduction in MAGI. A pay cut alone is not the work-hours event described here.Employer verification, reduced-work documentation, or an acceptable sworn statement.
Loss of income-producing propertyA qualifying involuntary loss of property that produced income.Insurance or disaster records, theft/fraud records, and income evidence.
Loss or reduction of pension incomeA pension plan terminates, ceases, or is reorganized in a qualifying way.Pension administrator statement and income records.
Employer settlement paymentA settlement is associated with an employer closure, bankruptcy, or reorganization.Settlement agreement, employer explanation, and payment records.

Source: SSA POMS HI 01120.005 (opens in a new tab) and Form SSA-44 (opens in a new tab). Confirm the current form and POMS before filing.

Important boundary

Income that increased temporarily is not automatically a qualifying event

SSA lists several circumstances that ordinarily do not qualify as life-changing events merely because they temporarily increased income:

  • Roth IRA conversions
  • One-time capital gains from selling property
  • Lottery winnings
  • Casino winnings
  • Cashing bonds
  • Ordinary investment-income losses
  • Higher household or medical expenses

A home sale with a taxable gain does not, by itself, become an SSA-44 event because income later falls. The navigator must still screen for independent qualifying circumstances, tax-data errors, and any available formal appeal rights.

Separate correction routes

Not every problem is an SSA-44 question

Amended tax return

SSA's process may consider qualifying amended tax documentation. Gather the amended return and proof of IRS acceptance.

Corrected IRS information

If the IRS data SSA used is wrong, the route is a corrected-data request, not a life-changing event.

Older tax year used

SSA may use three-year-old information when the normal return is unavailable. A newer available return may support a different determination.

MFS and lived apart

An attestation of living apart for the entire tax year can support the individual schedule, but only for the spouse who attests.

Prepare now

What to gather before contacting SSA

  • The IRMAA notice and the premium year it covers.
  • The tax year and filing status SSA used.
  • The event type and the month/year it occurred.
  • Revised AGI and tax-exempt interest, if known.
  • Evidence categories that fit the event, not a generic document list.
  • The deadline language printed on the notice, if you are considering reconsideration.

Do not enter a full Social Security number here. If you complete an official form, enter identifiers privately in the official document.

Choose a detailed preparation guide

Official resources

Read the primary instructions

Return to the calculator to compare the current determination with a hypothetical revised MAGI. The calculator does not model an appeal as approved.