How IRMAA works
Social Security gets your modified adjusted gross income (MAGI) from the IRS: your adjusted gross income plus tax-exempt interest, generally from two years before the premium year. If it is above the first bracket line, you pay a higher Part B premium and a Part D surcharge on top of your drug plan's premium. There are five income brackets above the standard premium, and they work as cliffs: one dollar over a line moves you to the next amount for the whole year.
| 2024 MAGI, single | 2024 MAGI, joint | 2026 Part B (monthly) | Part D surcharge |
|---|---|---|---|
| $109,000 or less | $218,000 or less | $202.90 | None |
| $109,001 to $137,000 | $218,001 to $274,000 | $284.10 | $14.50 |
| $500,000 or more | $750,000 or more | $689.90 | $91 |
The full table, including the middle brackets and married filing separately, is on Medicare costs in 2026. The 2027 brackets, which will use 2025 income, hadn't been published as of November 14, 2026.
What pushes Floridians over the line
- Selling a home up north. Many people move to Florida after selling a house elsewhere. Gain on a main home above the federal exclusion, and gain on a second home or rental, counts in the year of the sale. See does selling a home raise IRMAA?
- A DROP payout. Florida Retirement System members leaving the Deferred Retirement Option Program can take their DROP money as a lump sum (taxes withheld), a direct rollover to an IRA or other eligible plan, or a mix. Cash you take is income that year; a direct rollover isn't until you withdraw it.
- Retirement account withdrawals, including required minimum distributions and Roth conversions, plus pensions and the taxable part of Social Security.
What to do if you get an IRMAA notice
Social Security mails a notice explaining the amount and the income it used. If you retired, cut back work, lost a pension or your spouse died, file Form SSA-44 to ask Social Security to use a newer, lower year; see how to lower IRMAA after you retire. If you don't get Social Security yet, Medicare bills the Part B IRMAA every 3 months and the Part D IRMAA monthly; pay on time, because unpaid premiums can end your coverage. Estimate your amount with the IRMAA calculator. For questions about plan choices at your income, you can request a call from a licensed insurance agent.
Related questions
How do I lower IRMAA after I retire?
Form SSA-44, step by step.
Will selling my home up north raise my premiums?
Home sales and IRMAA.
What does Medicare cost per month in Florida?
All the monthly pieces.
Sources
- Social Security — Premiums: rules for higher-income beneficiaries
- CMS — 2026 Medicare Parts A & B premiums and deductibles (IRMAA tables)
- Social Security POMS HI 01101.010 — MAGI and the tax year used
- Medicare.gov — Pay Part A & Part B premiums (IRMAA bills)
- Florida Statutes s. 121.091(13) — DROP payment options
- IRS — Topic 701, Sale of your home
- Florida Department of Management Services, MyBenefits — Retiree FAQs (State plan drug coverage is creditable)
- Florida Department of Management Services, MyBenefits — MA-PD plans (include Part A, Part B and Part D)
More questions in this guide
- If I never worked in the U.S., can I buy Medicare Part A in Florida?
- Do I have to pay a premium for Medicare Part A?
- Will selling my home up north before moving to Florida raise my Medicare premiums?
- How do I lower my IRMAA after I retire?
- How much does Medicare cost per month in Florida?
Part of the guide: Medicare costs in 2026 for Floridians · All questions
Frequently asked questions
Florida has no state income tax. Can I still owe IRMAA?
Yes. Social Security uses only the income the IRS reports from your federal return. Florida's lack of a state income tax doesn't change your federal adjusted gross income.
Do I pay the Part D IRMAA with State Group Insurance?
If you're in one of the State's group MA-PD plans, which include Part D, yes; the Part D IRMAA applies to group Part D coverage too and is paid to Medicare, not the plan. The State's secondary health plans carry drug coverage the State describes as creditable, not a Part D plan. The Part B IRMAA applies either way.
Is IRMAA permanent?
No. Social Security looks at your income again every year. If your income falls, your IRMAA falls or ends, usually two years later, or sooner if you report a life-changing event on Form SSA-44.
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