IRMAA Brackets 2026: A Medicare Income Playbook for Couples With $2M+ Saved
Key Takeaways
- For 2026, Medicare generally uses your 2024 modified adjusted gross income, or MAGI, to determine whether IRMAA applies.
- A married couple filing jointly with 2024 MAGI above $218,000 may pay an added monthly amount for Medicare Part B and Part D.
- IRMAA is not a separate Medicare plan. It is an income-related adjustment added to Part B and, when applicable, Part D costs.
- Income decisions can affect more than taxes. Roth conversion timing and withdrawal sequencing may affect the MAGI Medicare reviews, with trade-offs that need to be considered in the context of your full plan.
You can pay more for Medicare because of income you reported two years earlier. Most retirement plans do not show you that connection before the notice arrives.
Quick answer: IRMAA is the Income-Related Monthly Adjustment Amount, an added charge for higher-income Medicare beneficiaries. For 2026, Social Security generally uses the MAGI reported on your 2024 federal tax return. For married couples filing jointly, IRMAA may apply when 2024 MAGI is above $218,000.
IRMAA can affect both Part B and Part D. The amount depends on your filing status and the income reported on the tax return Social Security uses.
In this guide, you'll see:
- What IRMAA is and why the two-year lookback matters
- The full 2026 IRMAA brackets for married couples filing jointly
- How to place IRMAA alongside Roth conversion and withdrawal decisions
- When a request to lower IRMAA may apply after a qualifying life-changing event
Table of Contents
What IRMAA Is
IRMAA stands for Income-Related Monthly Adjustment Amount. It is an additional amount some Medicare beneficiaries pay for Part B and Part D because of income. It is not a penalty for a single decision. It is Medicare's income-related premium structure.
For couples with substantial traditional 401(k) and IRA balances, income can come from several places at once: retirement-account withdrawals, required minimum distributions, Social Security benefits, pensions, interest, dividends, and capital gains. The combined result may affect both taxes and Medicare premiums.
That is why IRMAA belongs in the same conversation as retirement tax planning, not in a separate Medicare folder.
2026 IRMAA Brackets for Married Couples Filing Jointly
For 2026, the standard Medicare Part B premium is $202.90 per month. The table below shows the income-related amount and total Part B premium for people who file a joint return. It also shows the separate Part D IRMAA amount, which is added to a plan's own premium.
| 2024 MAGI, joint return | Part B IRMAA | Total Part B premium | Part D IRMAA |
|---|---|---|---|
| $218,000 or less | $0.00 | $202.90 | $0.00 |
| More than $218,000 to $274,000 | $81.20 | $284.10 | $14.50 |
| More than $274,000 to $342,000 | $202.90 | $405.80 | $37.50 |
| More than $342,000 to $410,000 | $324.60 | $527.50 | $60.40 |
| More than $410,000 to less than $750,000 | $446.30 | $649.20 | $83.30 |
| $750,000 or more | $487.00 | $689.90 | $91.00 |
Source: Centers for Medicare & Medicaid Services, 2026 Medicare Parts A & B Premiums and Deductibles. CMS lists the 2026 Part B and Part D income-related monthly adjustment amounts. Reviewed September 20, 2026.
Read the table per person, per month. Part B amounts apply to each enrolled person. If Part D IRMAA applies, it is separate from the premium charged by your Part D plan.
How the Two-Year Income Lookback Works
For 2026, Medicare generally uses the MAGI from your 2024 federal tax return. That two-year lookback matters because the decision that affects your 2026 premium may have happened well before you receive an IRMAA notice.
MAGI for this purpose generally starts with adjusted gross income and adds back tax-exempt interest. The exact details can matter, especially in years with a retirement, sale, conversion, or other large income event. Medicare's guide to how income affects drug coverage premiums explains the two-year tax-return rule and the Part D adjustment.
The lookback does not mean you should make a single decision to stay below a threshold. A lower Medicare premium in one year could come with other tax, cash-flow, estate, or planning trade-offs. The useful question is how each income decision fits your full retirement plan.
Planning Questions to Review Before Medicare Uses Your Income
Roth conversion timing
A Roth conversion generally increases taxable income in the year of the conversion, which may affect a later IRMAA determination. The conversion's tax cost, Medicare impact, future distribution flexibility, and estate considerations should be reviewed together. See Roth conversion strategy for the planning framework.
Withdrawal sequencing
Withdrawals from traditional retirement accounts, taxable accounts, and Roth accounts can affect MAGI differently. A withdrawal plan may help you evaluate spending needs and tax effects across years, but it cannot guarantee that a surcharge will be avoided. Read more about retirement withdrawal strategy.
Required minimum distributions and charitable giving
Required minimum distributions can add to taxable income. If charitable giving is part of your plan, a qualified charitable distribution may be worth discussing with your tax professional because eligibility, tax treatment, and charitable intent all matter. It is not a universal solution for IRMAA.
Large one-time income events
A business sale, property sale, concentrated holding, bonus, or large IRA distribution can change your income picture for a year. Before acting, review the timing alongside tax brackets, Medicare costs, cash needs, and your broader retirement tax plan.
When a Request to Lower IRMAA May Apply
A notice based on a two-year-old return may not reflect your current household income. If a qualifying life-changing event reduced your income, you may be able to ask Social Security to lower the IRMAA amount. That is a request for a lower IRMAA, not an automatic adjustment or a guarantee of eligibility.
Social Security lists life-changing events that include:
- Marriage, divorce, or annulment
- Death of a spouse
- Stopping work or reducing work hours
- Loss of income-producing property because of a disaster or event beyond your control
- Reorganization, termination, or scheduled cessation of an employer pension
- An employer settlement payment because of closure, bankruptcy, or reorganization
Social Security's Request to lower an IRMAA page explains the process. You may submit Form SSA-44 and supporting evidence, or contact Social Security for help. If your tax return was amended, Social Security directs you to call and discuss the updated return.
Important: A change in your income does not by itself establish that a request will be approved. Review the current Social Security instructions and documentation requirements before you act.
Frequently Asked Questions
What income year does Medicare use for 2026 IRMAA?
For 2026, Medicare generally uses the MAGI reported on your 2024 federal tax return, the return from two years earlier.
Do both spouses pay IRMAA?
IRMAA is assessed per enrolled person. A married couple may each pay the applicable Part B amount and, if applicable, the Part D adjustment.
Can a Roth conversion help you avoid IRMAA?
A Roth conversion generally raises MAGI in the year it occurs and may affect a later IRMAA determination. It could be part of a multi-year tax plan, but it does not guarantee a lower Medicare premium and should be evaluated with your tax and cash-flow picture.
Can you challenge an IRMAA determination after retirement?
If a qualifying life-changing event reduced your income, you may request a lower IRMAA from Social Security. Eligibility and the final amount depend on Social Security's review and the evidence provided.
Where IRMAA Fits in a Tax-First Retirement Plan
IRMAA is one result of your income plan. Your Social Security timing, Roth conversion schedule, withdrawal strategy, required minimum distributions, and one-time income events can all change the tax return Medicare reviews.
A useful retirement plan puts those decisions on one timeline. It does not treat Medicare, taxes, and retirement income as unrelated calculations.
If you want to see how your income sources interact and where they may land relative to Medicare thresholds, a Retire Ready Roadmap™ can help you map the decisions to your numbers. You can start that process here.
This content is for educational purposes only and is not investment, tax, or legal advice.
