Medicare cost calculator

See what you will pay for Medicare each month in 2026, including income surcharges and any late-enrollment penalty.

Your situation

Your adjusted gross income plus any tax-exempt interest. For 2026 premiums, Medicare uses your 2024 tax return.
Full 12-month periods without Part B or job-based coverage after you could have enrolled.
Full months without Part D or other creditable drug coverage after your first chance to enroll.
Use 0 if your drug coverage is part of a Medicare Advantage plan with no extra premium.
Per month$0
Per year$0
Part B$0

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Part B standard premium
Part B income surcharge
Part B late penalty
Part D plan premium
Part D income surcharge
Part D late penalty
Medigap or Advantage

Part A is free for most people with 40 work credits and is not included. Penalties are figured on 2026 amounts and rise each year with the premiums.

What Medicare costs in 2026

Most people pay the standard Part B premium of $202.90 a month, usually taken straight out of their Social Security check. On top of that comes a drug plan, a supplement or a Medicare Advantage plan, each with its own premium. Higher-income retirees pay an extra charge on Parts B and D, and anyone who signed up late pays a penalty for life.

The 2026 income brackets

Medicare looks back two years. Your 2026 premiums are based on your 2024 tax return, which is why so many people get a surprise bill in their first year of retirement: Medicare is still looking at a year when they were drawing a full salary.

SingleJointPart BPart D extra
$109,000 or less$218,000 or less$202.90$0.00
$109,001 to $137,000$218,001 to $274,000$284.10$14.50
$137,001 to $171,000$274,001 to $342,000$405.80$37.50
$171,001 to $205,000$342,001 to $410,000$527.50$60.40
$205,001 to $500,000$410,001 to $750,000$649.20$83.30
$500,000 or more$750,000 or more$689.90$91.00

Married people who live together but file separately pay $649.20 for Part B above $109,000 and $689.90 at $391,000 or more.

The brackets are cliffs, not slopes. One dollar over a line puts you in the next bracket for the whole year. A couple with $218,500 of income pays about $2,296.80 more for the year than a couple at $218,000. If you are close to a line, spreading a Roth conversion or a large IRA withdrawal across two years can keep you under it.

Getting the surcharge lowered

If your income fell because you retired, cut back your hours, lost a spouse, divorced, or lost pension income, you can ask Social Security to use a more recent year. File form SSA-44 with a copy of your retirement letter or other proof. This is one of the most overlooked ways new retirees can save money, and it often takes one letter.

Late-enrollment penalties

Sign up for Part B late without job-based coverage, and your premium rises 10% for every full year you waited. Three years late means paying about $263.77 instead of $202.90 a month, for the rest of your life. Drug coverage works the same way: go 63 days or more without Part D or creditable coverage and you pay 1% of the national base premium for each month you went without. Our Medicare at 65 guide explains the deadlines that avoid both.

Questions

What is the standard Part B premium for 2026?

The standard Part B premium is $202.90 a month in 2026, up from $185.00 in 2025. The yearly Part B deductible is $283.

What is IRMAA?

The income-related monthly adjustment amount is an extra charge on Part B and Part D for people with higher incomes. In 2026 it starts above $109,000 of modified adjusted gross income for a single filer, or $218,000 for a married couple filing jointly, based on your 2024 tax return.

Can I get IRMAA lowered?

Yes, if your income dropped because of a life-changing event such as retiring, a spouse’s death, divorce or losing a pension. File form SSA-44 with Social Security and include proof. Many new retirees qualify, because Medicare looks at a tax return from when they were still working.

How is the Part B late penalty figured?

Your premium goes up 10% for each full 12-month period you could have had Part B but did not sign up. The penalty is added for as long as you have Part B, and it rises as the standard premium rises.

How is the Part D late penalty figured?

Medicare multiplies 1% of the national base premium, $38.99 in 2026, by the number of full months you went without Part D or other creditable drug coverage, and rounds to the nearest 10 cents. It is added to your plan premium every month for life.

Sources

Checked November 5, 2026.