IRMAA — the Income-Related Monthly Adjustment Amount — is a surcharge added to a Medicare beneficiary's Part B and Part D premiums when income exceeds a threshold ($109,000 single, $218,000 married in 2026). Social Security uses a 2-year lookback, so 2024 income drives the 2026 surcharge. If your parent had a qualifying life-changing event — retirement, a spouse's death, work reduction, and five others — file Form SSA-44 to ask SSA to use a more recent year.
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What is IRMAA and how do I appeal my parent's Medicare premium surcharge? (2026)
The high-income Medicare surcharge, the 2-year lookback that catches families off guard, and the SSA-44 form that can wipe it out.
By Chuck Brodsky, Co-Founder, MediNav — Updated July 2026 — 8 min read
Chuck has spent the last three years building MediNav after coordinating Medicare, IRMAA, and Medicaid decisions for his own family. He writes MediNav's guides on Medicare cost-sharing, appeals, and premium adjustments.
Quick answer
Your dad calls, upset. His Medicare Part B premium went from $185 last year to $487 this year, and there is a new charge on his Part D too. He did not change plans. Nothing on his end was different. What happened?
He got hit by IRMAA. It affects millions of Medicare beneficiaries each year, and the count grows annually because the brackets are indexed differently than retirement income. Most families do not realize it can be appealed, and appeals routinely succeed when the family knows to file the right form. This guide is for the adult child or spouse trying to figure out why a parent's premium spiked and how to fight it.
What is IRMAA on my parent's Medicare bill?
IRMAA is the Income-Related Monthly Adjustment Amount — a surcharge added to Medicare Part B and Part D premiums for beneficiaries with higher income. In 2026 it starts above $109,000 for a single filer and $218,000 for a married couple, and it is set by Social Security — not by Medicare or the plan. The standard 2026 Part B premium is $202.90 a month; IRMAA is added on top of that.
The surcharge scales in five brackets. At the top bracket — individuals above $500,000, couples above $750,000 — the total 2026 Part B premium is $689.90/month, more than three times the standard rate (2026 Part B IRMAA table, medicareresources.org). The official figures are published in the CMS 2026 Parts A & B premiums and deductibles fact sheet.
The Part D IRMAA is separate. It is paid directly to Medicare, not to the drug plan, and it applies whether your parent is on a standalone Part D plan or a Medicare Advantage plan with drug coverage (MAPD).
How is IRMAA calculated?
Social Security looks at Modified Adjusted Gross Income (MAGI) from the tax return filed two years earlier — for 2026 IRMAA, that is the 2024 return. MAGI is adjusted gross income plus tax-exempt interest, and if it crosses a bracket threshold, the surcharge applies to both Part B and Part D for the entire calendar year. The surcharge is deducted directly from Social Security benefits, or billed if benefits are not yet claimed.
This is the piece almost no one understands until it happens. If 2024 was the year your dad sold a house, cashed in a 401(k) to help pay for your mom's care, took a large IRA distribution, or had a windfall — that income is what drives his premium two years later, long after the money is gone.
The lookback creates three predictable IRMAA surprises:
- The retirement cliff. Your parent's last full year of work was 2024. In 2026, they are retired and their real income is a fraction of what SSA is using. But SSA is still charging based on their working salary.
- The house sale. Downsizing in 2024 pushed capital gains into the return. In 2026, they are back to a fixed income, but Medicare thinks they are wealthy.
- The widow/widower shock. A parent files jointly for 2024 while their spouse is alive. The spouse dies in 2025. In 2026, the surviving parent gets an IRMAA notice — often at the higher single-filer bracket, because the joint income now flows to a single-filer table.
All three are appealable. That is where the SSA-44 comes in.
Can IRMAA be appealed?
Yes. If your parent had a qualifying life-changing event that lowered their income, they can file Form SSA-44 and ask SSA to use a more recent year — or an estimate of the current year — instead of the 2-year-old tax return. If the underlying tax return was wrong (not their fault, just incorrect), Form SSA-561 is used instead.
SSA recognizes eight qualifying life-changing events:
- Marriage
- Divorce or annulment
- Death of a spouse
- Work stoppage (retirement)
- Work reduction (going part-time, cutting hours)
- Loss of income-producing property (through disaster, theft, etc.)
- Loss of pension income
- Employer settlement payment (from a bankruptcy or closure)
If your parent's situation is on that list, file the SSA-44. Attach documentation (a retirement letter, a death certificate, a pension termination notice) and SSA is required to recalculate.
How do I appeal IRMAA for my parent step by step?
File SSA-1696 so SSA will talk to you, verify the income figures on the IRMAA notice against the actual 2024 return, identify the qualifying life-changing event, complete SSA-44 with documentation attached, submit by mail, fax, or in person — not online — and follow up within 30–60 days. Approved appeals are usually retroactive to January.
- Get on file as your parent's representative. File Form SSA-1696 so SSA can legally talk to you. Without this, they will not discuss your parent's premium with you, period.
- Read the IRMAA notice carefully. It states which tax year SSA used and which bracket your parent is in. Errors on this letter are common — verify the income figure matches the actual 2024 return.
- Identify the life-changing event. Retirement, spouse's death, work reduction — anything from the list above.
- Fill out SSA-44. Attach evidence. Sign it. Your parent has to sign it too unless you have durable power of attorney on file with SSA — a stricter standard than SSA-1696; see our guide on POA vs. Medicare representative.
- Submit by mail, fax, or in-person at a local SSA office. As of 2026, SSA-44 is not accepted through the online portal.
- Follow up. Decisions typically come within 30–60 days. If approved, the premium change is usually retroactive to January of the appeal year.
What if the SSA-44 appeal is denied?
Your parent has 60 days from the denial notice to take the appeal to the next level — a formal hearing before an Administrative Law Judge. Most families never need to go that far, but the right exists and it works when the underlying facts support the appeal. If the amount at stake is more than $3,000–4,000 per year, hiring a Medicare-focused elder law attorney can pay for itself in one year.
For the broader Medicare appeal process — plan denials, coverage disputes, discharge appeals — see our guide on appealing a Medicare denial for a parent.
How can I prevent an IRMAA surcharge before my parent enrolls in Medicare?
If your parent is not yet on Medicare but will enroll in the next two years, IRMAA becomes a tax-planning problem — a single Roth conversion, capital gains realization, or unusual bonus in the lookback year will spike premiums for a full year afterward. A rough rule of thumb: for every $1 of income above the IRMAA threshold, Medicare can cost hundreds of dollars extra per year, for both spouses.
Coordinating with a CPA or fee-only financial planner before the lookback year matters more than most families realize. The moves that reduce IRMAA — Roth conversions in an earlier year, income smoothing, timing of asset sales — cannot be reversed once the tax year closes.
When to call MediNav
Reading an IRMAA notice and figuring out whether your parent qualifies for SSA-44 relief is exactly the kind of question we answer.
- Free: Ask a specific question — we will tell you whether the letter looks appealable and what documents to gather.
- Free: Run the eligibility check if you also want to know whether your parent qualifies for Extra Help or a Medicare Savings Program at the same time. Many families discover both at once.
- Paid ($9–$19/mo): MediNav Watch and Watch+ monitor a parent's premium changes and flag IRMAA notices early enough to appeal them in the same tax year.
Related guides
- Understand your parent's Medicare letter — decoding IRMAA, LIS, MSN and every other Medicare notice
- Appeal a Medicare denial for a parent — the broader Medicare appeals playbook
- How to lower Medicare costs — the full picture of programs that reduce a parent's premiums
- Power of attorney vs. Medicare representative — which authorization form you actually need for SSA vs. Medicare
Frequently asked questions
What is IRMAA on my parent's Medicare bill?
IRMAA is the Income-Related Monthly Adjustment Amount — a surcharge added to Medicare Part B and Part D premiums for beneficiaries with higher income. In 2026, individuals with income above $109,000 or married couples above $218,000 pay extra. Social Security determines the surcharge using the tax return from two years earlier.
How is IRMAA calculated?
Social Security looks at Modified Adjusted Gross Income (MAGI) from the tax return filed two years prior. For 2026 IRMAA, that means the 2024 return. MAGI is adjusted gross income plus tax-exempt interest. If MAGI exceeds a bracket threshold, the surcharge applies to both Part B and Part D premiums for the entire calendar year.
Can IRMAA be appealed?
Yes. If your parent had a life-changing event that lowered their income — retirement, death of a spouse, work reduction, divorce, loss of pension, and a few others — they can file Form SSA-44 to ask SSA to use a more recent year. If the tax return itself was incorrect, use Form SSA-561 instead.
What is a "life-changing event" for IRMAA purposes?
SSA recognizes eight: marriage, divorce or annulment, death of a spouse, work stoppage, work reduction, loss of income-producing property, loss of pension income, and receipt of a settlement payment from a former employer. Events outside this list, such as a one-time capital gain or a bad investment year, do not qualify no matter how large the income change.
How long does an SSA-44 appeal take?
Most decisions come within 30 to 60 days. If approved, the corrected premium is usually retroactive to January of the appeal year, and SSA reimburses any surcharges already paid. Follow up with the local office if nothing arrives within two months — paper filings do get lost, and a fax confirmation or in-person receipt is worth keeping.
Does IRMAA apply to Medicare Advantage plans?
The Part B IRMAA applies to all Medicare beneficiaries, including those on Medicare Advantage, because MA members still pay their Part B premium. The Part D IRMAA applies whether your parent is on a standalone Part D plan or an MA plan with drug coverage (MAPD). The surcharge is paid to Medicare, not to the plan.
Do I need power of attorney to appeal IRMAA for my parent?
You need to be authorized to represent them at SSA, which is done with Form SSA-1696. Signing the SSA-44 itself requires either your parent's signature or a durable power of attorney on file with SSA (a stricter standard than SSA-1696). See our guide on power of attorney vs. Medicare representative for the difference.
What income counts toward IRMAA?
Modified Adjusted Gross Income (MAGI). That is line 11 of the 1040 (adjusted gross income) plus any tax-exempt interest reported on line 2a. Capital gains, IRA distributions, Roth conversions, and pension income all count. Social Security benefits and required minimum distributions count too — which is why timing them matters.
Sources: SSA Form SSA-44 Life-Changing Event Form, SSA Form SSA-561 Request for Reconsideration, Medicare & You 2026 handbook, CMS 2026 Parts A & B Premiums and Deductibles Fact Sheet, Form SSA-1696 Appointment of Representative. Last verified July 2026.