Two women retired from the same Boston law firm in March 2026. Both turned 65 that month, and both had identical 2024 W-2 income above $500,000. In April, each received a Medicare enrollment notice quoting a Part B premium of $689.90 per month. One paid it. The other filed Form SSA-44, attached proof that she had stopped working, and asked Social Security to use her lower 2026 income instead.
If her lower 2026 MAGI put her below the IRMAA line, that single form could be worth up to $6,936 in 2026 alone. Future savings would depend on her later tax returns, filing status, and Medicare’s annual IRMAA brackets.
The Two-Year Lookback That Sets Your Premium
Medicare’s Income-Related Monthly Adjustment Amount (IRMAA) usually builds your premium from the tax return filed two years earlier. The 2026 premium generally uses 2024 income. For a single filer with 2024 MAGI of $500,000 or more, or a joint filer with MAGI of $750,000 or more, the 2026 Part B surcharge is $487.00 on top of the standard $202.90 premium. The Part D surcharge adds another $91.00 per month above the drug plan’s own premium. Combined, that is $578 per month, or $6,936 per year per person at the top tier.
Only about 8% of Part B enrollees pay any IRMAA. If your MAGI sits comfortably below $109,000 single or $218,000 joint, this article does not touch you. For high earners retiring into Medicare, the two-year lookback hands them a bill calibrated to their final working year, exactly when their actual income has collapsed.
What SSA-44 Actually Does
The form is titled “Medicare Income-Related Monthly Adjustment Amount – Life-Changing Event.” The Social Security Administration accepts eight specific triggers: marriage, divorce or annulment, death of a spouse, work stoppage, work reduction, loss of income-producing property, loss of pension income, and an employer settlement payment. Retirement can count as work stoppage if you or your spouse stopped working. The filer provides evidence of the event and more recent MAGI, and Social Security may use that newer tax-year information instead of the older return.
Define your MAGI before guessing where you land. For IRMAA, MAGI is adjusted gross income from Form 1040 line 11, plus tax-exempt interest from line 2a. Municipal bond income that feels tax-free still counts. So does the taxable portion of any Roth conversion included in AGI.
That last point is where the form has hard limits. SSA-44 reverses IRMAA tied to income that fell because of a qualifying life event. It cannot reverse a voluntary income spike. A $200,000 Roth conversion in 2024 does not qualify, no matter how badly it shoves you into a higher bracket. Neither does a home sale, a Required Minimum Distribution, or a stock-option exercise. The form is a remedy for income that left the household.
The Widow Trap Most Couples Never See
When one spouse dies, the survivor may still be able to file jointly for the year of death, and some survivors with dependent children may qualify for favorable filing status for two more years. Many older survivors eventually file as single, though, where the IRMAA thresholds are roughly half the joint thresholds. A single filer with $260,000 of MAGI in 2026 would be in the fourth IRMAA tier, with combined Part B and Part D surcharges of about $6,355 for the year. SSA-44 covers death of a spouse, but the form helps only when the event reduces income or changes filing status enough to lower IRMAA.
One more piece of timing matters. Many enrollees have Part B deducted from their Social Security check. The 2026 cost-of-living adjustment is 2.8%, while the standard Part B premium climbed $17.90 from $185.00 in 2025. An unaddressed top-tier IRMAA can wipe out the COLA increase several times over before the first deposit hits.
What to Do
File Form SSA-44 promptly after a qualifying life-changing event reduces income. Attach documentation that matches the trigger: an employer statement or pay stub for work stoppage, a death certificate for survivor cases, a divorce decree, or pension-termination evidence. Social Security can use actual or estimated MAGI for a more recent tax year, and any refund depends on how much IRMAA was already paid and whether the request is approved.
If your income is within $20,000 of an IRMAA threshold and you are considering a 2026 Roth conversion or a large capital gain, model the 2028 premium before pulling the trigger. The conversion is not a life-changing event, and SSA-44 will not save you on the back end.
If a spouse died in the last two years and your income has dropped, run your numbers under your current or expected filing status against the latest IRMAA brackets. The bracket shift can be one of the most expensive surprises in the system, and the form that may reduce it is short.
The Form Helps, But Only When the Facts Fit
SSA-44 is powerful because it lets Medicare premiums catch up with a real income drop before the normal two-year lookback does. It is not a cure for every high-income year. The retirees who benefit most are the ones who know which income changes qualify, document them quickly, and model the premium impact before creating taxable income that cannot be appealed away.
Sources: CMS, 2026 Medicare Parts A & B Premiums and Deductibles (Nov. 14, 2025); SSA Form SSA-44. Article uses 2026 plan-year figures.
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