Lowering IRMAA after a life-changing event
Enter the income Social Security used and your new income: the calculator shows the bracket each one puts you in for 2026.
Your Part B premium in 2026, per person
$284.10/mo
IRMAA tier 1 of 5 · $1,148 a year above the standard premium
| Standard Part B premium | $202.90 |
| Part B adjustment (IRMAA) | $81.20 |
| Part D adjustment, added to any drug plan premium | $14.50 |
| Room before the next bracket | $12,000 |
| Income above this bracket’s floor | $16,000 |
Compiled by Radif Partners · How the data is read · independent site, not affiliated with Medicare or any insurer
Social Security sets IRMAA from your tax return of two years earlier, which can be badly out of date. If one of eight life-changing events reduced your income since then, you can ask for a "new initial determination" based on a more recent year, or on an estimate of the current one, instead of filing an appeal. The qualifying events listed in the SSA operations manual (POMS HI 01120.001) are the death of a spouse, marriage, divorce or annulment, a reduction of work, the end of work, the loss of income-producing property, the loss of an employer pension, and the receipt of a settlement payment from an employer. Retirement is the usual case: someone whose 2024 income was $190,000 pays $527.50 a month for Part B in 2026, but at $85,000 of current income would pay the standard $202.90. The request is made with form SSA-44, or in person, with evidence of the event and of the new income.
Two routes: new determination or appeal
A new initial determination is a fresh decision using information you provide. It does not require showing that SSA made a mistake, and it is the right route when your income really dropped after one of the qualifying events (POMS HI 01120.001). An appeal, by contrast, challenges the original decision, for example when the IRS data SSA used was wrong or belongs to someone else. You can do both at once if you are within the appeal deadline written on your notice.
Other situations also allow a new determination without any life-changing event: you filed an amended return for the year SSA used, the IRS information was wrong, or SSA used a return three years old when a two-year-old one now exists.
The eight qualifying events
- Death of your spouse.
- Marriage.
- Divorce or annulment.
- Work reduction: fewer hours or a lower-paid job.
- Work stoppage: retirement or leaving a job.
- Loss of income-producing property, when the loss is not your choice (a disaster, theft, fraud).
- Loss or reduction of an employer pension, for example when a plan ends or cuts benefits.
- Receipt of a settlement payment from a current or former employer because of its closure, bankruptcy or reorganization.
A large one-time gain you chose, such as selling a house or a business, or a Roth conversion, is not on the list. The income it creates stays on your return and counts for IRMAA two years later.
After retirement: new income, new bracket
Saved per year if SSA uses the new income
$4,620
| Part B now | $527.50 |
| Part B with the new income | $202.90 |
Single filer, 2026 tables. Form SSA-44 asks for this after a life-changing event.
What SSA asks for
Two things: proof of the event, and the more recent income. For the event, a death certificate, a marriage or divorce decree, or a letter from your employer showing the date your work ended or your hours were cut. For the income, the federal tax return of the more recent year if you have filed it; if not, a signed estimate of your modified adjusted gross income for the current year, which SSA accepts under penalty of perjury and later checks against the IRS data (POMS HI 01120.005). You can give a second estimate for the following year at the same time; if you do not, SSA reuses the first.
When the lower amount starts
If the event changed your income in the current year, the new determination applies from January of that year, or from the first month you had Part B or drug coverage if later, and SSA refunds the difference already paid. A request generally does not reach back to an earlier premium year, except when the event happened between October 1 and December 31 of the previous year and you ask by March 31.
Couples: one request each
A new determination applies only to the person who asks. If both spouses pay IRMAA, both must file. The case of a widow or widower shows why it matters: a couple with $300,000 of joint income in 2024 paid $405.80 each for Part B; the surviving spouse, now filing as single with $150,000, falls in the bracket that costs $405.80 a month, but only once the change is reported. Filing status matters as much as income: the single brackets start at $109,000, half the joint threshold.
Practical points
- File as soon as the event happens and you can estimate the income: waiting until the following year does not increase the refund.
- Keep a copy of everything you send and note the date; SSA field offices can take weeks to process.
- If your estimate turns out too low, SSA corrects it when the IRS data arrives, and you may owe the difference. Estimate honestly, including required distributions from IRAs.
- If SSA refuses the request, the decision letter explains how to ask for reconsideration and by when; a refusal on one year does not prevent a new request when your income changes again.
- Check the result on your next benefit statement or premium bill. The IRMAA brackets page gives the 2026 amounts for each tier.