What is known about 2027 so far
CMS sets the Part A and Part B amounts in one yearly announcement, a fact sheet titled "Medicare Parts A & B Premiums and Deductibles." The 2027 version hadn't been posted as of November 13, 2026, so we don't print a 2027 premium, and you should be wary of any site that states one as fact before CMS does. Some 2027 amounts are already official:
| Amount | 2026 | 2027 |
|---|---|---|
| Part B standard premium (monthly) | $202.90 | Not yet published |
| Part B deductible | $283 | Not yet published |
| Part B coinsurance for most services | 20% | 20% (set by law) |
| Part B late penalty per full 12 months | 10% | 10% (set by law) |
| Part D out-of-pocket cap | $2,100 | $2,400 |
The full list of published 2027 amounts is on Medicare costs in 2027.
How the Part B premium is set
By law, the standard premium covers about a quarter of the cost of Part B for people 65 and older, and the federal government pays the rest. When Part B spending rises, so does the premium. The cost-of-living adjustment to Social Security is announced in October, and if you get Social Security, your January notice shows the new COLA and the new Part B premium together. A "hold harmless" rule keeps most people's Social Security check from going down because of a Part B increase.
What Ohioans should do now
- Public retirees without Social Security: Medicare will bill you the 2027 premium. If you use Medicare Easy Pay, the new amount is drawn automatically. Your retirement system's 2027 credit, reimbursement or HRA amount is set by the system, not by Medicare.
- Higher incomes: 2027 IRMAA will use your 2025 tax return. If you retired in 2025 or 2026, see how to lower IRMAA after you retire.
- Limited income: Ohio Medicaid's Medicare Premium Assistance Programs pay the Part B premium, whatever it turns out to be. Check the savings programs screener.
- Plan choices: Open Enrollment for 2027 coverage runs through December 7, 2026. The Part B premium is the same whichever plan you choose, so compare plans on their own costs. A licensed insurance agent who works with Benefits Life can compare plans from the companies they work with; you can request a call from a licensed insurance agent.
Related questions
What does Medicare cost per month in Ohio?
All the monthly pieces.
What is IRMAA?
Income-based premiums.
Do I pay a premium for Part A?
The 40-quarter rule.
Sources
- CMS — Newsroom fact sheets (where the 2027 Parts A & B amounts will be posted)
- CMS — 2026 Medicare Parts A & B premiums and deductibles
- Medicare.gov — Medicare costs
- Social Security POMS HI 01101.010 — Tax year used for IRMAA
- CMS — CY 2027 Rate Announcement (Part D out-of-pocket cap)
More questions in this guide
- Do I have to pay a premium for Medicare Part A?
- How do I lower my IRMAA after I retire?
- How much does Medicare cost per month in Ohio?
- What is IRMAA and will I have to pay it?
Part of the guide: Medicare costs in 2026 for Ohioans · All questions
Frequently asked questions
When will the 2027 Part B premium be announced?
CMS announces the next year's Part A and Part B premiums, deductibles and IRMAA brackets each fall; the 2026 amounts came out on November 14, 2025. Social Security then mails each person who gets benefits a notice showing the new premium.
Will my 2027 Part B premium depend on my income?
Yes, if your income is high enough. Social Security will use the modified adjusted gross income on your 2025 federal tax return to decide whether you pay an income-related amount (IRMAA) on top of the standard premium.
Does the Part B premium change if I live in a different Ohio county?
No. The Part B premium and deductible are set nationally. What changes by county is your choice of Medicare Advantage plans, which set their own premiums on top of Part B.
Medicare in your Ohio county
Plans, local agents and help, county by county: Franklin · Cuyahoga · Hamilton · Summit · Montgomery · Lucas · Butler · Stark · Lorain · Warren · Delaware · Lake · Mahoning · Clermont · Trumbull · Licking · Medina · Greene · Fairfield · Portage · All 88 counties →
