Part B amounts in effect now (2026)
| Part B cost | 2026 amount |
|---|---|
| Standard monthly premium | $202.90 |
| Yearly deductible | $283 |
| Coinsurance after the deductible | $20% of the Medicare-approved amount, for most services |
| Premium with the highest income (IRMAA) | Up to $689.90 a month |
For comparison, the 2025 standard premium was $185 and the deductible was $257.
What can make your Part B premium different
- Income. If your modified adjusted gross income on your tax return from two years earlier was above $109,000 (single) or $218,000 (joint) for 2026, you pay an income-related monthly adjustment amount. See what is IRMAA.
- Signing up late. The Part B penalty adds 10% for each full 12 months you could have had Part B but didn't, for as long as you have it.
- Help from Oklahoma. OHCA says it pays the monthly Part B premium for SoonerCare members 65 or older and certain blind or disabled members. The Medicare Savings Programs can pay it too; apply at your OKDHS Human Services Center. See Medicare Savings Programs in Oklahoma.
What is already set for 2027
Some 2027 amounts are final. The Part D out-of-pocket cap rises for 2027; see what is the Part D cap for 2027. Part A amounts for 2027 aren't published yet either; see Medicare costs in 2027.
Tip: Your yearly premium notice from Social Security shows your own Part B amount. Keep it with your tax papers; it's also where IRMAA appears.
Get help
A licensed insurance agent who works with Benefits Life can show how Part B costs fit with Medigap, Part D or Medicare Advantage plans from the companies they work with, at no cost to you. You can request a call from a licensed insurance agent. For every amount in one place, see Medicare costs in 2026.
Related questions
How much does Medicare cost per month?
Adding up A, B, D and more.
Do I pay a premium for Part A?
Most people don't.
How do I lower IRMAA after I retire?
Form SSA-44 and life-changing events.
Sources
- CMS — 2026 Medicare Parts A & B premiums and deductibles
- Medicare.gov — Medicare costs
- Oklahoma Health Care Authority — SoonerCare benefits
- Oklahoma Human Services — Help with Medicare Part A and B premiums
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 Oklahoma?
- What is IRMAA and will I have to pay it?
- What is the Medicare Part D out-of-pocket cap for 2027?
Part of the guide: Medicare costs in 2026 for Oklahomans · All questions
Frequently asked questions
When will the 2027 Part B premium be announced?
CMS publishes the next year's Part A and Part B amounts in a fact sheet, usually in the fall. Social Security then mails each person a notice of their own premium for the coming year. We'll update this page when CMS publishes the 2027 amounts.
Does Social Security take the Part B premium out of my check?
Yes, if you get Social Security benefits, the premium is usually deducted from your monthly payment. If you don't get benefits yet, Medicare bills you, and you can pay online, by mail or through automatic deduction from your bank.
Is Part B cheaper in Oklahoma?
No. The standard Part B premium and deductible are national amounts. What you pay can differ because of your income (IRMAA), a late enrollment penalty, or help from a Medicare Savings Program or SoonerCare.
Medicare in your Oklahoma county
Plans, local agents and help, county by county: Oklahoma · Tulsa · Cleveland · Canadian · Comanche · Rogers · Wagoner · Payne · Pottawatomie · Creek · Muskogee · Garfield · Grady · Washington · Logan · Bryan · Le Flore · Carter · Cherokee · McClain · All 77 counties →
