Medicare IRMAA is a surcharge added to your Part B and Part D premiums when your income sits above a threshold. In 2026 the standard Part B premium is $202.90 a month, and IRMAA kicks in once modified adjusted gross income passes $109,000 for a single filer or $218,000 for a couple filing jointly. From there it adds between $81.20 and $487.00 a month per person, on top of the standard premium.

The part that catches Pasco County households off guard is the timing. Social Security doesn’t look at what you earn this year. It looks at your tax return from two years ago. So a single unusual year, a home sale, a DROP payout, a large withdrawal, quietly sets a Medicare bill that lands long after the money is spent.

What is Medicare IRMAA?

IRMAA stands for income-related monthly adjustment amount. It’s an extra charge on top of the standard Medicare Part B premium, and a separate one on top of your Part D drug plan premium, applied to beneficiaries whose modified adjusted gross income clears a threshold set in federal law.

It isn’t a tax and it isn’t a penalty for doing something wrong. Under 20 CFR 418.1005, its stated purpose is to reduce the federal subsidy of Part B for higher-income beneficiaries. Practically, that means higher earners pay a larger share of what their own coverage actually costs. The Part B surcharge is usually withheld straight from your Social Security payment. The Part D surcharge is billed separately by Medicare, not by your drug plan, which is why people who have IRMAA often get a bill they weren’t expecting from an agency they weren’t expecting it from.

The 2026 Medicare IRMAA brackets

These are the 2026 figures published by the Centers for Medicare and Medicaid Services in the Federal Register on November 19, 2025. The first number is the surcharge per person. The second is the total monthly Part B premium once the surcharge is added.

  • MAGI up to $109,000 single, or $218,000 joint: no surcharge, $202.90 a month
  • Over $109,000 up to $137,000 single, or over $218,000 up to $274,000 joint: $81.20 surcharge, $284.10 total
  • Over $137,000 up to $171,000 single, or over $274,000 up to $342,000 joint: $202.90 surcharge, $405.80 total
  • Over $171,000 up to $205,000 single, or over $342,000 up to $410,000 joint: $324.60 surcharge, $527.50 total
  • Over $205,000 and under $500,000 single, or over $410,000 and under $750,000 joint: $446.30 surcharge, $649.20 total
  • $500,000 or more single, or $750,000 or more joint: $487.00 surcharge, $689.90 total

Two details matter more than the table itself. First, these tiers are cliffs, not a sliding scale. One dollar over a threshold moves you into the full next bracket, so a couple at $274,001 pays the same surcharge as a couple at $342,000. Second, the surcharge is per person. A married couple who both have Medicare each pay it, which doubles the real cost of crossing a line.

The 2026 Part B deductible is $283, and the standard premium rose $17.90 from the $185.00 charged in 2025. Your Part D surcharge is separate from all of this, and the amount changes each year, so confirm the current Part D figure with Medicare rather than assuming it tracks the Part B number.

Which year’s income sets your 2026 Medicare IRMAA?

Your 2026 surcharge is based on your 2024 tax return. Under 20 CFR 418.1135, Social Security uses the modified adjusted gross income the IRS reports for the tax year two years before the year the surcharge applies. If the IRS hasn’t sent that year yet, the agency temporarily uses the year three years back, then corrects the determination once the newer data arrives.

Modified adjusted gross income here means your adjusted gross income plus tax-exempt interest. That last piece surprises people who moved into municipal bonds specifically to keep taxable income down. Muni interest doesn’t show up on your tax bill, but it does count toward the IRMAA threshold.

The two-year lag is the whole problem. You could retire in 2026, drop to a modest fixed income, and still pay a surcharge built on a 2024 salary you no longer earn. That’s not an error, and it isn’t something a phone call fixes. There’s a specific process for it, covered further down.

Why selling a house before you moved to Wesley Chapel can trigger IRMAA

A home sale is one of the most common IRMAA triggers in this corridor, and it’s also one you generally can’t appeal. Wesley Chapel, Land O’ Lakes, and Lutz have absorbed years of arrivals from higher-cost states, and a lot of those households funded the move by selling a long-held house up north.

Here’s how it goes wrong. The federal capital gains exclusion on a primary residence covers a good deal of the gain, but a house held for thirty years in New Jersey or New York often produces a gain well past it. The excess lands in that year’s adjusted gross income. Two years later, a Medicare premium notice arrives quoting an income the household hasn’t seen since.

Selling property is explicitly outside the appeal rules. The regulation at 20 CFR 418.1205 covers loss of income-producing property, but only when the loss wasn’t at your own direction, and it names sale or transfer of the property as an example of what doesn’t count. A voluntary sale is a choice, so it doesn’t qualify. This is worth modeling before the sale rather than after, which is one reason tax planning coordination between a planner and a CPA tends to pay for itself in the year a house changes hands.

Married filing separately has only three tiers, and the first step is steep

Couples who lived together at any point during the tax year but filed separate returns get a different and much harsher table. There’s no gentle first rung.

  • MAGI up to $109,000: no surcharge, $202.90 a month
  • Over $109,000 and under $391,000: $446.30 surcharge, $649.20 total
  • $391,000 or more: $487.00 surcharge, $689.90 total

A married-filing-separately return at $110,000 draws the same $446.30 surcharge as one at $390,000. Compare that to a joint return at $220,000, which draws $81.20. Couples sometimes file separately for reasons that have nothing to do with Medicare, like income-driven student loan repayment or a spouse’s business liability. If both spouses are on Medicare, that filing choice deserves a look at what it costs on the premium side before the return goes out.

The seven life-changing events that let you ask for a redo

If your income dropped because of a qualifying event, you can ask Social Security to use a more recent tax year instead of the one two years back. The request goes on Form SSA-44, the life-changing event form, listed under OMB control number 0960-0784.

The regulation at 20 CFR 418.1205 lists exactly seven qualifying events, and the list is closed:

  • Your spouse dies
  • You marry
  • Your marriage ends through divorce or annulment
  • You or your spouse stop working, or reduce your hours
  • You or your spouse lose income-producing property, when the loss wasn’t your own doing and wasn’t ordinary investment risk
  • Your employer’s pension plan is scheduled to stop, terminate, or reorganize
  • You or your spouse receive a settlement from an employer because that employer closed, went bankrupt, or reorganized

Retiring is on that list. That’s the one most people miss. A Pasco County Schools employee or a Sheriff’s Office retiree who stops working in 2026 doesn’t have to wait two years for the surcharge to catch up with reality. They can file the form in the year the income actually drops.

Timing has its own rule. Under 20 CFR 418.1010, you can request a new determination any time during the calendar year the reduction happens. If the event falls in the last three months of a year, you have until March 31 of the following year. A reduction also has to be large enough to move you into a lower bracket or off the table entirely. Under 20 CFR 418.1220, a drop that doesn’t change what you owe isn’t treated as significant.

What doesn’t count as a life-changing event

The regulation at 20 CFR 418.1210 is blunt about this. Nothing outside the seven listed events qualifies, and it calls out two categories specifically.

Events that raise your expenses but not your income don’t count. A large medical bill, a new roof after a storm, or a move into assisted living changes your budget without changing your modified adjusted gross income, so none of them support an appeal. Losing dividend income to ordinary market risk doesn’t count either. A portfolio that fell in value is investment risk, not a qualifying loss.

That leaves a real gap between what feels unfair and what the rule actually allows. A Roth conversion, a large IRA withdrawal, an inherited account being emptied, and a home sale can all push a household into a surcharge bracket, and none of them are appealable. The lever for those is planning the timing before the income event, not arguing about it afterward. A retirement income planner can model which year a withdrawal should land in, and how that interacts with required minimum distributions once those begin.

A hurricane loss can qualify, and Florida households rarely file for it

One item on the qualifying list reads differently in Florida than it does anywhere else. The regulation names loss of real property within a Presidentially or Gubernatorially declared disaster area as an example of a qualifying property loss.

Florida sits under declared disaster areas more often than almost any other state. A Pasco County household that lost a rental property, a duplex, or another income-producing property in a declared storm has a genuine path to a lower surcharge, and most never file for it because they don’t know the connection exists. The distinction is income-producing property, not your own home, and the loss has to be the storm’s doing rather than a sale you chose to make.

If that describes a year in your history, it’s worth checking against the actual determination notice you received rather than assuming the window closed. The same is true for anyone whose employer pension was reorganized or terminated, which is a separate qualifying event people almost never connect to their Medicare premium.

How an FRS DROP payout lands in the calculation

The Deferred Retirement Option Program pays out a lump sum at the end of the DROP period, and that lump sum is exactly the shape of income that triggers IRMAA two years later. A Pasco County educator or public safety employee who takes the payout as cash in 2026 can expect it to show up in the 2028 premium determination.

Rolling the payout into an IRA instead of taking it as cash generally keeps it out of that year’s adjusted gross income, which is one of several reasons the rollover decision deserves more thought than it usually gets. It also means the money comes out later, on a schedule you choose, rather than all in one year.

Retiring from the DROP position is separately a qualifying life-changing event, so a household can be dealing with both sides of this at once: a lump sum pushing income up, and a stopped paycheck pushing it down. Those two don’t cancel out automatically. They’re handled through different parts of the same process, which is a reasonable moment to bring in a planner who does Medicare planning alongside retirement income work.

What Pasco retirees can actually do about IRMAA

The surcharge itself isn’t negotiable, but the income that produces it is often more controllable than people assume. Four moves come up repeatedly with households in Zephyrhills and Dade City.

Spread large withdrawals across tax years instead of taking them in one. Check where you sit against the next threshold before a December distribution, because a small overage costs a full bracket. Consider a qualified charitable distribution once you’re eligible, since it satisfies a required distribution without adding to adjusted gross income. And file the SSA-44 in the year you actually stop working, rather than waiting for the lag to correct itself.

None of this is investment advice, and it isn’t tax advice either. It’s the set of questions worth putting in front of a licensed planner and a CPA together, because the Medicare premium, the withdrawal schedule, and the tax return are one decision wearing three hats. Households working through Social Security timing usually find IRMAA sitting in the middle of that same conversation, since the surcharge comes straight out of the benefit check.

Frequently asked questions

How do I know if I have to pay Medicare IRMAA?

Social Security sends an initial determination notice before the year starts, and the surcharge shows up as a reduction in your Social Security payment. You can also work it out yourself: find the modified adjusted gross income on your tax return from two years ago, add any tax-exempt interest, and compare it to the brackets above.

Does IRMAA go away if my income drops?

Yes, but not immediately. Because Social Security uses a two-year-old tax return, a lower income generally takes two years to show up as a lower premium on its own. If the drop came from one of the seven qualifying life-changing events, filing Form SSA-44 can move it up to the current year instead of waiting.

Is a Roth conversion worth doing if it triggers IRMAA?

Sometimes, and it depends on the size of the surcharge against the long-term tax savings. A conversion raises adjusted gross income in the year you do it, which can push you into a bracket two years later. Many households convert in measured amounts each year specifically to stay under the next threshold rather than converting a large balance at once.

Can I appeal IRMAA because I sold my house?

Generally no. The regulation covers loss of income-producing property only when the loss wasn’t at your own direction, and it names a sale or transfer as an example of what doesn’t qualify. A voluntary home sale is a choice, so it falls outside the appeal rules even when the gain was unusual and one-time.

Do both spouses pay the Medicare IRMAA surcharge?

Yes, when both are enrolled in Medicare. The surcharge is assessed per person, so a couple in the first surcharge bracket pays $81.20 each, or $162.40 a month combined, on top of two standard premiums.

Does Florida’s lack of a state income tax reduce IRMAA?

No. IRMAA is federal, and it’s calculated from your federal modified adjusted gross income. Florida having no state income tax lowers your overall tax bill, but it doesn’t change the number Social Security uses to set the surcharge.

Getting matched with a planner who handles Medicare IRMAA

IRMAA is a decision you make two years before you see the bill, which is the hardest kind of decision to make well on your own. If you’d like to talk it through with an independent, licensed financial planner in the Wesley Chapel corridor, call Wesley Chapel Wealth Pro at (813) 680-3195. We’re a free fiduciary advisor matching service, available for evening and weekend appointments on request. We don’t manage money or give investment, tax, or legal advice ourselves, and every recommendation comes from the planner we match you with, not from us.