How Does My Income Affect My Medicare Premiums in 2026?
Medicare premiums are part of a retirement budget, but they are not one fixed number. Income from two years earlier can raise both Part B and Part D costs—sometimes after one extra dollar crosses a threshold.
The Starting Number Is $202.90 a Month
The standard Medicare Part B premium is $202.90 per person per month in 2026, and the annual Part B deductible is $283. Most people do not pay a Part A premium because they or a spouse paid Medicare taxes long enough. But Original Medicare still has deductibles and cost sharing; it has no annual out-of-pocket limit unless you have other coverage, such as Medigap, or choose a Medicare Advantage plan with its own limit.
For a couple, the standard Part B premium alone is $4,869.60 a year. That excludes Part D plan premiums, Medigap or Medicare Advantage premiums, deductibles, copays, dental, vision, and long-term care.
The 2026 IRMAA Table
IRMAA—the income-related monthly adjustment amount—raises Part B and Part D costs for higher-income beneficiaries. The Centers for Medicare & Medicaid Services says roughly 8% of people with Part B pay an income-adjusted premium. For 2026, Medicare generally uses modified adjusted gross income from the 2024 federal tax return.
| 2024 MAGI, individual | Joint MAGI | Part B | Part D IRMAA |
|---|---|---|---|
| $109,000 or less | $218,000 or less | $202.90 | $0 |
| $109,001–$137,000 | $218,001–$274,000 | $284.10 | $14.50 |
| $137,001–$171,000 | $274,001–$342,000 | $405.80 | $37.50 |
| $171,001–$205,000 | $342,001–$410,000 | $527.50 | $60.40 |
| $205,001–$499,999 | $410,001–$749,999 | $649.20 | $83.30 |
| $500,000 or more | $750,000 or more | $689.90 | $91.00 |
Part B is the total monthly premium. Part D is an income adjustment added to the premium charged by the chosen drug plan. Married-filing-separately rules use different thresholds.
The table creates cliffs. A joint return with 2024 MAGI of $218,000 falls in the standard tier. At $218,001, each enrolled spouse moves to $284.10 for Part B and adds $14.50 for Part D each month. For two spouses enrolled in both parts, that one-dollar difference corresponds to $2,296.80 of annual IRMAA before any plan premium.
Why Retirement Decisions Show Up Two Years Later
Medicare’s lookback means a large realization in 2024 can affect 2026 premiums. Income that can move MAGI includes taxable retirement withdrawals, Roth conversions, realized capital gains, interest, dividends, and other taxable income. Tax-exempt interest is also included in the modified income measure used for IRMAA.
A Roth conversion at 63 can affect Medicare premiums at 65 because the usual lookback is two years.
Selling appreciated investments to fund a major purchase can create a premium effect after the purchase year.
Required minimum distributions may push later income into a higher tier even when spending does not change.
Each enrolled spouse pays the adjustment, so joint-return thresholds should be evaluated at the household level.
A major life-changing event, including work stoppage or loss of income-producing property, may support a request to use more recent income through Social Security’s appeal process.
Budget Beyond the Premium
A sound retirement plan separates predictable premiums from uncertain care. Part B, a drug plan, and supplemental or Advantage coverage are recurring line items. Deductibles, copays, uncovered dental and vision care, hearing services, and long-term support need separate assumptions. Medicare says Original Medicare has no yearly out-of-pocket cap, which makes supplemental coverage choices material to downside risk.
Put healthcare and taxes on the same timeline
Enter healthcare costs as manual expenses and compare Roth conversions with income-threshold warnings. The planner does not automatically calculate Medicare premiums, ACA subsidies, or capital-gains harvesting.
Sources: CMS, 2026 Medicare Parts A and B premiums and deductibles; Medicare.gov, 2026 costs; Medicare & You 2026; and Social Security, requesting a lower IRMAA after a life-changing event. Figures apply to 2026 and were verified September 13, 2026. Part D plan premiums vary and are additional. This is educational information, not tax, insurance, or financial advice.