Medicare Part D

IRMAA in 2026: The Income Line That Adds to Your Medicare Bill

POUGHKEEPSIE, N.Y. — As Medicare's fall Annual Enrollment Period runs through Dec. 7, higher-income retirees in the Hudson Valley are getting fresh reminders that what they earned two years ago can still shape what they pay next year. The Income-Related Monthly Adjustment Amount, or IRMAA, is the surcharge Medicare adds to Part B and Part D premiums when income crosses certain lines — and for 2026, the first line sits just above $109,000 for a single filer.

Here is a plain-language look at how those brackets work, who they touch, and what to do if your income has dropped since the year Social Security looked at.

What IRMAA actually is

IRMAA stands for Income-Related Monthly Adjustment Amount. It is not a separate bill you sign up for — it is an extra dollar amount added on top of the standard Part B premium and, if you have Part D drug coverage, on top of your Part D premium.

Most people with Medicare pay only the standard Part B premium. IRMAA applies only to the smaller share of enrollees whose income is above the thresholds. If you owe it, Social Security sends a letter each fall explaining the amount for the coming year.

How the 2026 income brackets work

For 2026, IRMAA surcharges begin when a single filer's income is above $109,000. For people who file a joint return, the first bracket starts at roughly double that amount. There are several higher tiers above that first step — the more your income rises, the larger the surcharge on both Part B and Part D.

The income Medicare uses is your modified adjusted gross income (MAGI): your adjusted gross income plus any tax-exempt interest. And here is the part that surprises people most — Medicare looks back two years. Your 2026 surcharge is based on the tax return you filed for 2024.

That two-year lookback is why a one-time bump — selling a home, cashing in a large IRA distribution, or a Roth conversion — can push you into an IRMAA tier for a single year even if your ongoing income is much lower.

Who tends to get hit

In Poughkeepsie and across Dutchess County, the people most likely to see an IRMAA letter are:

• Recent retirees whose final working year had a high salary or a lump-sum payout.
• Homeowners who sold a long-held property and had a large capital gain.
• Retirees taking required minimum distributions (RMDs) from traditional IRAs or 401(k)s.
• Couples where both spouses had strong earning years before Medicare age.

If none of that describes you, IRMAA likely does not apply — the standard premium is what you will pay.

What to do if your income has changed

If your income has dropped since the tax year Social Security is using — often because you retired, lost a spouse, got divorced, or your pension was cut — you can ask for a new decision. The form is SSA-44, "Medicare Income-Related Monthly Adjustment Amount – Life-Changing Event." You submit it to Social Security with documentation of the event and your expected new income.

Approved life-changing events include marriage, divorce, death of a spouse, work stoppage, work reduction, loss of income-producing property, loss of pension income, and employer settlement payments. A simple market dip in your investments does not qualify.

How IRMAA fits with the 2026 Part D changes

IRMAA is separate from — but stacks on top of — the other Part D changes taking effect in 2026. Next year, Part D includes a $2,100 annual out-of-pocket cap on covered drugs and a maximum deductible of $615. The coverage gap, once known as the "donut hole," was eliminated in 2025, leaving three phases: deductible, initial coverage, and catastrophic.

Medicare also offers the Medicare Prescription Payment Plan, which lets you spread your yearly drug costs across monthly payments instead of paying large amounts at the pharmacy counter. That option is available to anyone with a Part D plan, regardless of income.

Poughkeepsie is in Dutchess County, where plan availability and enrollment questions can be sorted out during the Annual Enrollment Period (Oct. 15 – Dec. 7) or, for those already in a Medicare Advantage plan, the Medicare Advantage Open Enrollment Period (Jan. 1 – March 31).

Where to get help you can trust

For the current-year IRMAA amounts and brackets, the authoritative source is Medicare.gov's "Costs" pages and Social Security. For personal questions, you can call 1-800-MEDICARE (1-800-633-4227) or contact New York's SHIP program, called HIICAP (Health Insurance Information, Counseling and Assistance Program), which offers free, unbiased counseling. Dutchess County residents can reach HIICAP through the county Office for the Aging.