What's changing in your Medicare costs for 2025

Medicare costs are rising in 2025, but the increases vary depending on which parts of Medicare you use. Part B premiums (doctor and outpatient care) are going up, Part D premiums (prescription drugs) are changing by plan, and your deductibles and copays are also increasing. The exact amount you pay depends on your income, which plan you chose, and whether you have other insurance.

The Social Security Administration announced these changes in October 2024, and they take effect January 1, 2025. If you are on Social Security, your benefit increase may offset some of the Medicare cost rise — but not all of it for most people.

Key Takeaways

  • Part B premiums increase each year based on Medicare's costs, and the 2025 amount depends on your income level.
  • Part D drug plan premiums and coverage change yearly, so you should review your current plan during open enrollment to see if a different plan costs less.
  • Deductibles, copays, and coinsurance amounts rise annually, affecting what you pay when you see a doctor or fill a prescription.
  • If you receive Social Security, your benefit increase for 2025 is 2.5 percent, which may help cover some but usually not all of your Medicare cost increases.

Part B premium increases and income-based amounts

Part B covers doctor visits, outpatient surgery, lab tests, and medical equipment. The standard Part B premium for 2025 is $185 per month for most people — an increase from $174.70 in 2024. However, if your income is higher, you pay a larger premium through a process called Income-Related Monthly Adjustment Amount (IRMAA).

IRMAA brackets are based on your modified adjusted gross income from two years prior (2023 income determines your 2025 premium). If your income falls into a higher bracket, you pay more — sometimes significantly more. The brackets change each year. You can request a reduction if your income dropped due to retirement, loss of a spouse, or other life changes, but you must contact Social Security to do this.

If you have a Medigap or Medicare Advantage plan, Part B premiums are still deducted from your Social Security check or billed directly to you — the premium itself does not change based on your plan choice, only your income level.

Part D prescription drug plan changes

Part D premiums, deductibles, and the drugs covered by your plan change every year. Some plans may cost less in 2025 than they did in 2024, while others cost more. A plan that was affordable last year might be expensive this year, or a drug you take might move to a higher cost tier or be removed from the formulary entirely.

The annual deductible for Part D in 2025 is up to $545, though many plans have lower deductibles. Once you meet your deductible, you enter the initial coverage phase, where you and your plan share the cost of drugs. After you and your plan spend a combined $5,850 on covered drugs, you enter the coverage gap (sometimes called the "donut hole"), where you pay a larger share until your out-of-pocket costs reach $8,550 — then catastrophic coverage begins and your costs drop significantly.

Open enrollment runs from October 15 to December 7 each year. During this time, you can switch to a different Part D plan, switch to a Medicare Advantage plan that includes drug coverage, or drop Part D coverage entirely. Reviewing your plan before open enrollment is the main way to control your drug costs.

Part A deductibles and hospital costs

Part A covers hospital stays, skilled nursing facility care, hospice, and home health services. The Part A deductible for 2025 is $1,676 per benefit period — up from $1,632 in 2024. This is the amount you pay out of pocket before Part A coverage begins for a hospital stay.

If you are hospitalized for more than 60 days in a single benefit period, you also pay a daily coinsurance amount ($419 per day for days 61–90 in 2025). If your stay extends beyond 90 days, the costs rise further. Most people do not pay Part A premiums because they or their spouse paid Medicare taxes for at least 10 years while working, but the deductible and coinsurance amounts still explore.

Medicare Advantage plan changes

Medicare Advantage (Part C) plans are offered by private insurance companies and include Part A and B coverage plus usually Part D and dental or vision benefits. Premiums, deductibles, copays, and the networks of doctors vary widely by plan and by year. Some plans have zero premium, while others charge $50 or more per month.

If you are in a Medicare Advantage plan, your costs for 2025 depend entirely on which plan you chose. The plan's summary of benefits document, available on Medicare.gov, shows the exact copays and deductibles for that plan. During open enrollment, you can switch to a different Medicare Advantage plan, switch to Original Medicare with a Medigap plan, or stay in your current plan.

How Social Security increases affect your Medicare costs

Social Security benefits increase by 2.5 percent in 2025 — the annual cost-of-living adjustment (COLA). For the average beneficiary, this translates to roughly $35 more per month. However, Part B premiums alone are rising by about $10 per month, and Part D and other costs are rising as well, so the Social Security increase does not fully cover the Medicare cost increases for most people.

If you are not yet on Social Security but will turn 62 in 2025 or later, these increases do not affect your when ready situation, but they show the pattern of rising costs you should expect. If you are still working and paying Medicare taxes, you are funding these increases through payroll deductions.

What to do before January 1, 2025

Review your current Medicare plan during open enrollment (October 15 to December 7, 2024). Log into Medicare.gov, use the Plan Finder tool, and compare your current plan's costs to other plans available in your area. Check whether your current drugs are still covered and at what cost tier.

If you are turning 65 in 2025, you have a seven-month initial enrollment period starting three months before the month you turn 65. Missing this window can result in permanent late-enrollment penalties on your premiums, so contact Social Security or Medicare as soon as you know your birthday is approaching.

If your income dropped significantly in 2024 due to retirement or loss of a spouse, contact Social Security before January 1 to request an IRMAA reduction. Provide documentation of the income change. This can lower your Part B premium for 2025.

Frequently Asked Questions

Will my Social Security check go down because of Medicare increases?

No. Your Social Security benefit increases by 2.5 percent in 2025. Your Part B premium is deducted from that larger amount, so your net check may be smaller than it would have been without the premium increase, but your benefit itself does not decrease.

Can I appeal my IRMAA premium if I think it's wrong?

Yes. If you believe Social Security used incorrect income information, you can request a recalculation. You must contact Social Security directly — Medicare cannot change IRMAA amounts. Have your tax return or other income documentation ready.

What happens if I don't pay my Part B premium in 2025?

If you miss Part B payments, your coverage can be terminated and you may face a permanent late-enrollment penalty if you want to rejoin later. Contact Social Security or Medicare when ready if you cannot pay — some programs may help with premiums based on income.

Should I switch Medicare Advantage plans if my current plan's costs are rising?

Possibly. During open enrollment, compare your current plan's 2025 costs to other plans in your area using the Plan Finder tool on Medicare.gov. Pay special attention to whether your doctors and drugs are covered in any new plan you consider, because switching plans means changing your network.

If I'm still working, do I have to enroll in Medicare at 65?

Not if you have employer health insurance through your job. You can delay Medicare enrollment without penalty as long as you are covered by an active employer plan. However, you must enroll in Part A and B within eight months of leaving that job to avoid permanent late-enrollment penalties.