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"Understanding IRMAA: What Higher-Income Medicare Beneficiaries Need to

## **Important Disclaimer:** *This information is for educational purposes only and does not constitute marketing of any specific Medicare plan. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Program (SHIP) to get information on all of your options. This material is not affiliated with or endorsed by the federal Medicare program.*

**Understanding IRMAA in 2026: What Higher-Income Medicare Beneficiaries Need to Know**

**Quick Answer:** IRMAA (Income-Related Monthly Adjustment Amount) is a surcharge added to your Medicare Part B and Part D premiums if your income exceeds certain thresholds. In 2026, IRMAA applies to single filers with Modified Adjusted Gross Income (MAGI) above $109,000 and joint filers above $218,000 — based on your 2024 tax return. The surcharge ranges from $81.20 to $487 per month on top of the standard $202.90 Part B premium. About 7% of Medicare beneficiaries pay IRMAA. If your income has dropped since 2024 due to a qualifying life-changing event, you can appeal. This guide explains every 2026 bracket, how IRMAA is calculated, and what to do if it applies to you.

If you're planning for Medicare costs in 2026, you may have heard about something called IRMAA. For most Medicare beneficiaries, this won't apply — but if you're among the approximately 7% of beneficiaries with higher incomes, understanding IRMAA could significantly impact your healthcare budgeting and retirement income planning.

**What Is IRMAA?**

IRMAA stands for Income-Related Monthly Adjustment Amount. It is a surcharge — an additional amount added on top of your standard Medicare Part B and Part D premiums — that applies when your Modified Adjusted Gross Income (MAGI) exceeds certain thresholds.

Medicare beneficiaries who earn over $109,000 a year (single filers) and who are enrolled in Medicare Part B and/or Medicare Part D pay IRMAA in 2026. It is assessed separately for Part B and Part D, and both are affected simultaneously when your income crosses a threshold.

IRMAA is not a penalty for doing something wrong — it's simply an income-based adjustment. It also changes year to year, so a beneficiary paying IRMAA in one year may not pay it the next if their income drops.

**The Two-Year Look-Back Rule**

Here's the piece that surprises most people: IRMAA is not based on your current income. It's based on your **Modified Adjusted Gross Income from two years prior**.

Your 2026 IRMAA is determined by your **2024 tax return** — the most recent return the government had on file when 2026 premiums were set. This means:

• A large one-time income event in 2024 (selling a property, taking a large retirement distribution, a Roth conversion) can trigger IRMAA in 2026 even if your income is now much lower
• Retiring in 2025 won't immediately reduce your 2026 IRMAA — it will reduce your 2027 IRMAA instead
• Planning ahead — especially in the years before Medicare begins — is the most effective way to manage IRMAA

**The 2026 IRMAA Brackets — Complete Tables**

**Single Filers**

**Married Filing Jointly**

**Married Filing Separately**

*Note: Married filing separately carries a steep penalty — the second bracket jumps immediately to near-maximum surcharge levels. If you file separately, this is worth discussing with your tax advisor.*

**The Cliff Effect — A Planning Warning**

One of the most important things to understand about IRMAA is what happens when your income crosses a bracket boundary by even one dollar:

• A **single filer** earning $137,001 pays $1,736 more per year in Part B premiums than one earning $136,999
• A **married couple** where both spouses are on Medicare and cross that same threshold together face a $3,472 annual jump

This "cliff effect" makes income management in the years before and during Medicare critically important. Strategic decisions about Roth conversions, capital gains timing, and retirement distributions can prevent an accidental bracket crossing that costs thousands.

**Good News for 2026: The Threshold Increased**

The IRMAA entry threshold increased from $106,000 in 2025 to **$109,000 in 2026** for single filers — a 2.83% increase. This means some beneficiaries who paid IRMAA in 2025 will not pay it in 2026 if their income falls between those two thresholds. CMS adjusts IRMAA thresholds annually for inflation, which is a modest but meaningful protection for beneficiaries near the entry level.

**Who Pays IRMAA?**

Most Medicare beneficiaries do not pay IRMAA. About 7% of Medicare beneficiaries — approximately 5.1 million out of roughly 69 million total enrollees — paid Part B IRMAA surcharges in the most recent reporting year. If you're not sure whether IRMAA applies to you, the starting point is your 2024 Modified Adjusted Gross Income:

**MAGI = Adjusted Gross Income (line 11 of Form 1040) + Tax-exempt interest (line 2a of Form 1040)**

If your 2024 MAGI was below $109,000 (single) or $218,000 (joint), you do not pay IRMAA in 2026.

**How IRMAA Is Calculated and Paid**

IRMAA is recalculated every year based on your most recent available tax return. That means your IRMAA status can change year to year as your income changes.

**Part B IRMAA** is automatically added to your monthly premium bill — you don't have to pay it separately. If your Part B premium is deducted from your Social Security check, the IRMAA-adjusted amount is what gets deducted.

**Part D IRMAA** must be paid **directly to Medicare** — not to your Part D plan or employer. This is your responsibility to pay even if your employer or a third party pays your Part D plan premiums. Many people miss this distinction and end up with unpaid IRMAA surcharges.

**How You're Notified**

Social Security Administration sends IRMAA determination notices — typically in the fall before the coverage year begins. The notice will tell you:

• Your 2024 MAGI as reported by the IRS
• Which bracket applies to you
• Your 2026 premium amounts for Part B and Part D
• Your appeal rights if you disagree

**If you receive an IRMAA notice, read it carefully.** You have a limited window to appeal if the income information is incorrect or if a qualifying life-changing event has reduced your income.

**Can You Appeal IRMAA?**

Yes — and it's worth doing if your income has genuinely dropped. You can appeal if you've experienced one of **8 qualifying life-changing events**:

1. Work stoppage (retirement)
2. Work reduction
3. Marriage
4. Divorce or annulment
5. Death of spouse
6. Loss of pension
7. Loss of income-producing property
8. Employer settlement payment

A successful appeal uses Form SSA-44 and can reduce your Part B premium by $81.20 to $487 per month — a savings of up to $5,844 per year. Excess premiums already paid are refunded retroactively.

For the complete step-by-step appeal guide, see our dedicated post: **Your Guide to Successfully Appealing IRMAA in 2026.**

**Planning Strategies to Manage IRMAA**

Strategic income planning — particularly in the years before Medicare begins — is the most effective tool for managing IRMAA. Key strategies worth discussing with your financial advisor:

**Roth Conversion Timing** Converting traditional IRA funds to Roth in lower-income years reduces future RMDs and the MAGI they generate — but conversions themselves increase current-year MAGI. Watch the cliff effect carefully when sizing conversions.

**Capital Gains Management** Large one-time gains from property sales or portfolio rebalancing can spike MAGI into IRMAA territory for one or two years. Spreading gains across years where possible reduces this risk.

**Retirement Income Sequencing** The order in which you draw from taxable accounts, tax-deferred accounts, and Roth accounts affects your MAGI each year. Working with a financial planner on withdrawal sequencing can keep income below IRMAA thresholds.

**Social Security Timing** Social Security benefits count toward MAGI. Delaying Social Security past 65 keeps MAGI lower in early Medicare years — potentially avoiding IRMAA during the most vulnerable planning window.

For a broader look at income planning strategies in the years before Medicare, see our post: **Medicare and Retirement Planning: What You Need to Know at Age 62 or 63.**

**Frequently Asked Questions**

**What is IRMAA and who has to pay it in 2026?**

IRMAA is an income-based surcharge added to Medicare Part B and Part D premiums for higher-income beneficiaries. In 2026, it applies to single filers with 2024 MAGI above $109,000 and joint filers above $218,000. About 7% of Medicare beneficiaries pay IRMAA. The surcharge ranges from $81.20 to $487 per month on top of the standard $202.90 Part B premium.

**What income does Medicare use to calculate IRMAA in 2026?**

Medicare uses your Modified Adjusted Gross Income (MAGI) from your 2024 federal tax return — two years prior. MAGI equals your Adjusted Gross Income (line 11 of Form 1040) plus tax-exempt interest (line 2a of Form 1040). One-time income events in 2024 — like selling a property or taking a large retirement distribution — can trigger IRMAA in 2026 even if your current income is much lower.

**How much is the IRMAA surcharge in 2026?**

For single filers, the Part B surcharge ranges from $81.20 per month (first bracket, $109,000–$137,000) to $487 per month (top bracket, above $500,000), added on top of the standard $202.90 premium. Part D surcharges range from $14.50 to $91.00 per month. See the complete bracket tables above for every tier.

**Can I appeal my IRMAA if my income has dropped?**

Yes — if your income dropped due to one of 8 qualifying life-changing events (including retirement, divorce, death of a spouse, or loss of pension), you can appeal using Form SSA-44. A successful appeal can reduce your premium by $81.20 to $487 per month and any excess premiums already paid are refunded. For the full step-by-step process, see our dedicated IRMAA Appeals post.

**What is the "cliff effect" in IRMAA?**

The cliff effect refers to the significant premium jump when your income crosses a bracket threshold by even one dollar. For example, a single filer earning $137,001 pays $1,736 more per year in Part B premiums than one earning $136,999. For a married couple where both are on Medicare, the same crossing costs $3,472. This makes precise income management in the years before and during Medicare critically important.

**Does IRMAA apply to Medicare Advantage plans?**

Yes. The Part B IRMAA surcharge applies regardless of whether you have Original Medicare or Medicare Advantage — you always pay the Part B premium (with any applicable IRMAA) because Part B enrollment is required for Medicare Advantage. The Part D IRMAA applies if your Advantage plan includes drug coverage (MA-PD), and must be paid directly to Medicare — not to your plan.

**The Bottom Line on IRMAA in 2026**

IRMAA affects about 7% of Medicare beneficiaries — but for those it does affect, the financial impact is significant. Understanding the two-year look-back, the cliff effect, and the appeal rights available when income drops are the three most important things any higher-income beneficiary needs to know.

The best approach is proactive: manage your income in the years before and during Medicare to stay below IRMAA thresholds where possible, understand the brackets so you're not caught off guard by a cliff crossing, and appeal promptly if a qualifying life-changing event has genuinely reduced your income.

**Need Additional Help?**

For questions about IRMAA or Medicare premium planning:

• Visit Medicare.gov to learn more about Medicare costs and IRMAA
• Call Social Security at 1-800-772-1213 for questions about your IRMAA determination
• Contact your local State Health Insurance Assistance Program (SHIP) for free, unbiased counseling
• See our companion post for appealing IRMAA: **Your Guide to Successfully Appealing IRMAA in 2026**
• See our retirement planning post for income strategies: **Medicare and Retirement Planning: What You Need to Know at Age 62 or 63**

**Required Compliance Disclaimers:**

*For agent use only. Not affiliated with the U.S. federal government or federal Medicare program. This information is provided for educational purposes only and does not constitute marketing of any specific Medicare plan.*

*For official Medicare information, please visit Medicare.gov or call 1-800-MEDICARE. You can also contact your local State Health Insurance Program (SHIP) for personalized assistance.*