Medicare IRMAA in 2026: Income Limits, Premium Surcharges & How to Lower Them
Medicare premiums are not the same for every beneficiary. People with higher income may pay an additional amount called the Income-Related Monthly Adjustment Amount (IRMAA).
IRMAA is not a tax and it is not a late-enrollment penalty. It is an income-based surcharge added to Medicare Part B and Medicare Part D premiums. Your 2026 IRMAA is generally based on information from your 2024 federal income tax return.
This matters for retirees because wages, IRA withdrawals, 401(k) distributions, Roth conversions, taxable investment gains, business income, and tax-exempt interest can all affect the income used for IRMAA.
For related Medicare planning, see Medicare Part D: Prescription Drug Costs and the Annual Out-of-Pocket Cap and Turning 65? Medicare Enrollment Deadlines and Late Penalties.
Key Rule for 2026
For most people, 2026 IRMAA is based on 2024 modified adjusted gross income. The first IRMAA tier begins above $109,000 for most individual filers and above $218,000 for married couples filing jointly.
1. What Is Medicare IRMAA?
IRMAA is an additional monthly premium amount for people whose income exceeds Medicare’s annual income thresholds. It applies to Medicare Part B and Medicare Part D.
For Part B, IRMAA is added to the standard monthly Part B premium. For Part D, IRMAA is added to your separate prescription drug plan premium or Medicare Advantage plan drug premium.
For 2026, the standard Medicare Part B premium is $202.90 per month. Higher-income beneficiaries can pay more depending on their filing status and modified adjusted gross income.
IRMAA is reassessed each year. A temporary income increase can affect premiums for a future year, but it does not automatically create a permanent surcharge.
2. The Two-Year Look-Back Rule
Social Security generally uses the most recent income information supplied by the IRS. In most cases, that means Medicare premiums are based on tax information from two years earlier.
| Income Tax Year | Medicare Premium Year Usually Affected |
|---|---|
| 2024 | 2026 Medicare premiums |
| 2025 | 2027 Medicare premiums |
| 2026 | 2028 Medicare premiums |
For example, a large Roth conversion, taxable stock sale, or final high-salary work year in 2024 may raise your 2026 premiums. If the IRS does not yet have the more recent return information, Social Security may use older available tax information.
3. How Medicare Defines MAGI for IRMAA
For IRMAA purposes, modified adjusted gross income is generally your adjusted gross income (AGI) plus tax-exempt interest income.
IRMAA MAGI = Adjusted Gross Income + Tax-Exempt Interest Income
This is one reason IRMAA planning can be different from ordinary income-tax planning. Municipal bond interest may be federally tax-exempt, but it is generally included when Social Security calculates IRMAA MAGI.
Income Events That Can Raise IRMAA MAGI
- Wages, bonuses, severance, self-employment income, and pension income.
- Traditional IRA, 401(k), 403(b), and other taxable retirement-account withdrawals.
- Roth conversions from a Traditional IRA or workplace retirement account.
- Taxable interest, dividends, capital gains, and taxable brokerage-account sales.
- Business income, rental income, and other taxable income reported on a federal return.
- Tax-exempt municipal bond interest.
4. 2026 IRMAA Income Limits and Premiums
The following income tiers generally apply to single filers, heads of household, qualifying surviving spouses, and married taxpayers filing jointly. The income figures are based on 2024 MAGI for 2026 premiums.
| 2024 MAGI: Individual Filers | 2024 MAGI: Married Filing Jointly | 2026 Part B Monthly Premium | 2026 Part D IRMAA |
|---|---|---|---|
| $109,000 or less | $218,000 or less | $202.90 | $0, plus your plan premium |
| More than $109,000 to $137,000 | More than $218,000 to $274,000 | $284.10 | $14.50, plus your plan premium |
| More than $137,000 to $171,000 | More than $274,000 to $342,000 | $405.80 | $37.50, plus your plan premium |
| More than $171,000 to $205,000 | More than $342,000 to $410,000 | $527.50 | $60.40, plus your plan premium |
| More than $205,000 and less than $500,000 | More than $410,000 and less than $750,000 | $649.20 | $83.30, plus your plan premium |
| $500,000 or more | $750,000 or more | $689.90 | $91.00, plus your plan premium |
Married filing separately: Special rules can apply when you were married, lived with your spouse during the tax year, and filed separately. In 2026, IRMAA can begin above $109,000 and jump directly to the higher tiers. Review the official Social Security chart for this filing status.
Threshold reminder: IRMAA uses premium tiers. Moving even slightly above a threshold can place you in the next monthly premium category for that year.
5. One-Time Income Events and IRMAA
IRMAA can be triggered by one-time transactions, not only by recurring retirement income. Before completing a major transaction, consider both the income-tax result and the possible Medicare premium result two years later.
Roth Conversions
A Roth conversion is generally taxable in the year it occurs. It can increase AGI and potentially raise IRMAA two years later. However, a temporary IRMAA increase does not automatically make a Roth conversion a poor decision.
Some retirees deliberately accept a temporary higher premium in exchange for reducing future Traditional IRA balances, future Required Minimum Distributions, and future taxable retirement income. The decision should be evaluated using a multi-year projection rather than a single premium year.
Selling a Home or Investment
Selling a home does not automatically trigger IRMAA. What matters is the taxable income reported on your federal return. A taxable capital gain from a home sale, stock sale, business sale, or other investment sale can raise MAGI and may affect premiums two years later.
For a primary residence, federal home-sale exclusions may reduce or eliminate taxable gain for eligible taxpayers. Review IRS rules before assuming that sale proceeds and taxable income are the same thing.
Required Minimum Distributions
RMDs from Traditional IRAs and most workplace retirement accounts are generally taxable income. As RMDs rise over time, they may increase IRMAA exposure, especially when combined with Social Security, pensions, dividends, and capital gains.
For people age 70½ or older who make charitable gifts, a properly completed Qualified Charitable Distribution may be a planning option. A QCD is sent directly from an IRA to an eligible charity and can reduce the amount included in adjusted gross income when IRS requirements are met.
6. How to Request a Lower IRMAA Amount
Your two-year-old tax return may not reflect your current financial situation. Social Security allows some beneficiaries to request a new IRMAA decision after a qualifying life-changing event that reduced household income.
The usual tool is Form SSA-44, Medicare Income-Related Monthly Adjustment Amount – Life-Changing Event.
Life-Changing Events Listed on Form SSA-44
- Marriage.
- Divorce or annulment.
- Death of a spouse.
- Work stoppage, including retirement.
- Work reduction.
- Loss of income-producing property.
- Loss or reduction of pension income.
- Receipt of an employer settlement payment because of closure, bankruptcy, or reorganization.
Social Security may use more recent actual or estimated income information when a qualifying event reduced your income. You should provide evidence of both the life-changing event and your more recent income.
Important: A planned Roth conversion, a taxable investment sale, or a voluntary large withdrawal is not itself a listed SSA-44 life-changing event. Do not assume that a one-time tax event automatically qualifies for an IRMAA reduction.
What to Include With SSA-44
Supporting documents can include a retirement or employer letter, proof of a pension reduction, divorce or death records, recent tax returns, pay stubs, and other records showing your changed income. The exact documents depend on the event and your income situation.
If you believe Social Security used incorrect tax information, an incorrect filing status, or an incorrect IRMAA decision, you may request reconsideration rather than using SSA-44. If an amended federal tax return changed your income, contact Social Security for instructions.
7. Practical Ways to Plan Ahead
- Project MAGI before year-end. Include wages, IRA withdrawals, conversions, capital gains, dividends, business income, and tax-exempt interest.
- Check the next IRMAA threshold. Before a Roth conversion or major asset sale, compare projected MAGI with the applicable tier boundaries.
- Coordinate large transactions. Spreading a planned conversion or taxable sale across tax years may change the income and Medicare premium result.
- Review charitable planning. Eligible taxpayers with charitable goals may consider Qualified Charitable Distributions instead of taking taxable IRA distributions personally.
- Keep tax documents organized. Store tax returns, SSA notices, retirement letters, pay records, and documents that could support an SSA-44 request.
- Evaluate total lifetime costs. A temporary IRMAA increase may sometimes be reasonable if it supports a broader tax, estate, or retirement-income strategy.
8. Common IRMAA Questions
Is IRMAA permanent?
No. IRMAA is generally reviewed annually using the available tax information. If your later income falls below the relevant threshold, your later Medicare premium may also decrease.
Can I appeal simply because I retired?
Retirement may qualify as a work stoppage life-changing event when it reduced your income. You still need to provide evidence and submit accurate more recent income information to Social Security.
Can a house sale affect IRMAA?
It can, but only if the sale creates taxable income that increases the MAGI reported on your federal tax return. Net sale proceeds alone do not determine IRMAA.
Can I avoid IRMAA by refusing Medicare Part D?
Not necessarily. Going without Medicare drug coverage or other creditable prescription drug coverage for 63 days or more can trigger a separate Part D late-enrollment penalty. Review drug coverage decisions carefully.
9. IRMAA Review Checklist
- Find the tax year Social Security used for your Medicare premium.
- Calculate your MAGI using AGI plus tax-exempt interest.
- Compare your income with the correct filing-status threshold.
- Estimate the Medicare premium effect of large income events two years ahead.
- Read any Social Security IRMAA notice carefully.
- Determine whether the tax information is incorrect or whether a qualifying life-changing event reduced income.
- Use SSA-44 and supporting evidence when a life-changing event applies.
IRMAA is an important Medicare cost, but it should be considered alongside taxes, investment goals, Required Minimum Distributions, Social Security, charitable plans, and health-care needs. A coordinated plan is usually more useful than making decisions based on one Medicare threshold alone.
Sources and Further Reading
- Social Security Administration: 2026 Medicare Premiums and IRMAA Amounts
- Social Security Administration: Request to Lower IRMAA
- Form SSA-44: Life-Changing Event Request
- CMS: 2026 Medicare Part B Premiums and Deductibles
- IRS Publication 523: Selling Your Home
- IRS Publication 590-B: IRA Distributions and Qualified Charitable Distributions
Last reviewed: July 2026
Educational disclaimer: This article is for general educational purposes only and is not tax, legal, insurance, investment, or financial advice. Medicare premiums, IRMAA thresholds, tax rules, life-changing event rules, and personal circumstances can change. Review current Social Security, CMS, and IRS guidance and consider qualified professional advice before making major retirement, tax, or Medicare decisions.
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