Medicare costs for SSDI recipients depend on which part you use

If you receive SSDI, you become may be able to access for Medicare after you have been receiving benefits for 24 months. When that time comes, Part A (hospital insurance) is free. Part B (medical insurance) costs a monthly premium that changes each year — for 2024, it is $174.70 per month for most people, though some pay more based on their income. Part D (prescription drug coverage) and Medigap supplemental plans have their own separate costs that vary by plan and location.

The key thing to understand is that Medicare costs are separate from your SSDI check. Your SSDI payment does not change when you turn 65 or become Medicare-may be able to access. The premiums come out of your own money, not from Social Security, though many people on SSDI choose to have Part B premiums deducted directly from their SSDI payment to make it simpler.

Key Takeaways

  • Part A hospital insurance costs nothing once you have been on SSDI for 24 months, but Part B medical insurance costs a monthly premium that is adjusted each year.
  • If your income is below a certain threshold, you may pay a reduced Part B premium or nothing at all through the Medicare Savings Program.
  • Part D prescription drug plans and Medigap supplemental coverage have separate costs that depend on which plan you choose and where you live.
  • You can have Medicare premiums taken directly from your SSDI payment so you do not have to pay them separately.

Part A costs nothing; Part B has a monthly premium

Part A covers hospital stays, skilled nursing facility care, hospice, and home health services. Once you have been on SSDI for 24 consecutive months, Part A enrollment is automatic and costs you nothing. You do not have to do anything — it happens on its own.

Part B covers doctor visits, outpatient care, medical equipment, and preventive services. Part B is optional, but most people on SSDI choose to enroll because the cost is low relative to what it covers. The standard Part B premium for 2024 is $174.70 per month. This amount increases most years to account for inflation and changes in healthcare costs. The Social Security Administration announces the new premium amount in the fall of each year, and it takes effect the following January.

If you do not enroll in Part B when you first become Medicare-may be able to access, you can enroll later, but you may face a permanent penalty — your premium will be 10 percent higher for each 12-month period you delayed enrollment without a valid reason. The exception is if you are still working and covered by an employer health plan; in that case, you can enroll in Part B without penalty during an eight-month window after you stop working or lose that coverage.

Income-based reductions through the Medicare Savings Program

If your income is low enough, you may not have to pay the Part B premium at all, or you may pay a reduced amount. This happens through the Medicare Savings Program, which is run by your state, not by Medicare itself. Each state sets its own income limits, but they are generally around 135 to 200 percent of the federal poverty level.

To find out whether you may have access to and to enroll, contact your state Medicaid office or call 1-800-MEDICARE. You will need to provide proof of your income — usually your most recent tax return, your SSDI award letter, or a recent bank statement. Processing typically takes two to four weeks. If you are approved, your state Medicaid program pays your Part B premium directly to Medicare on your behalf, and you pay nothing.

The Medicare Savings Program also covers your Part A deductible and coinsurance if you are hospitalized. This is a significant benefit that many people on SSDI do not know about, so it is worth checking whether you may have access to even if you think your income is too high.

Part D prescription drug coverage and how much it costs

Part D covers prescription medications through private insurance plans that contract with Medicare. It is optional, but if you do not enroll when you first become Medicare-may be able to access and you go without creditable drug coverage for more than 63 days, you will pay a permanent penalty on top of your Part D premium for as long as you have Medicare.

Part D premiums vary widely depending on which plan you choose and which pharmacy you use. For 2024, premiums range from roughly $7 to $100 per month, though most plans fall in the $20 to $50 range. The plans also differ in which drugs they cover, what your copay or coinsurance is, and whether there is a coverage gap (sometimes called the "donut hole") where you pay more out of pocket for drugs that fall in a certain price range.

You can compare Part D plans and enroll during the annual enrollment period from October 15 to December 7 each year. You can also switch plans once per year during this window. If you have low income, you may may have access to for Extra Help, a federal program that pays most or all of your Part D premium and reduces your out-of-pocket drug costs. You can explore for Extra Help through Social Security or at Medicare.gov.

Medigap supplemental insurance and its costs

Medigap is private supplemental insurance that covers costs Medicare does not — such as copays, coinsurance, and deductibles. It is optional, but many people on SSDI buy it because it reduces their out-of-pocket medical expenses. Medigap premiums vary by plan type, your age, your location, and the insurance company you choose.

There are ten standardized Medigap plans, labeled A through N. Plan A is the least expensive and covers the fewest costs; Plan G and Plan N are popular middle-ground options; Plan F (the most comprehensive) is no longer sold to people newly may be able to access for Medicare, though existing enrollees can keep it. For someone on SSDI in their 60s or early 70s, a basic Medigap plan might cost $100 to $200 per month, while more comprehensive plans can cost $200 to $400 or more. These are rough ranges — your actual cost depends entirely on where you live and which company sells the plan.

You have the best rates if you enroll in Medigap within six months of enrolling in Part B. After that window closes, insurance companies can charge you more based on your health history. If you are on a tight budget, you do not have to buy Medigap — you can use Part D for drugs and pay Medicare's copays and deductibles out of pocket, or you can look into Medicare Advantage (Part C) instead, which is an alternative to Original Medicare that often has lower out-of-pocket costs.

How to pay your Medicare premiums

Most people on SSDI have their Part B premium deducted automatically from their monthly SSDI payment. This is the simplest option because you do not have to remember to pay separately. The deduction happens before you receive your check, so your SSDI deposit will be reduced by the premium amount.

If you do not want the premium deducted from your SSDI check, you can pay Medicare directly by mail, phone, or online. You can also set up automatic payments from your bank account through Medicare.gov. If you enroll in Part D or Medigap, those premiums are billed separately by the insurance company, not by Social Security.

If you fall behind on your Part B premium, Medicare will not drop your coverage when ready, but you will owe the back premiums plus interest. If you are having trouble affording your premiums, talk to Social Security or call 1-800-MEDICARE about the Medicare Savings Program or Extra Help — these programs exist specifically to help people in your situation.

What happens to your costs at age 65

When you turn 65, your Medicare coverage does not change, but your situation may. If you are still on SSDI at 65, you automatically convert to Social Security retirement benefits at the same payment amount — this is called a "deemed filing" and happens without you having to do anything. Your Medicare coverage continues without interruption, and your costs remain the same.

If you are on SSDI and turn 65, you do not pay more for Medicare than someone who became Medicare-may be able to access through SSDI at a younger age. Your Part A is still free, your Part B premium is still the same standard amount (or reduced if you may have access to for the Medicare Savings Program), and your Part D and Medigap costs are the same. The only thing that changes is your benefit category on Social Security's records — not the money you receive or the healthcare you can access.

Frequently Asked Questions

Can I get Medicare for free if I am on SSDI?

Part A is free after 24 months on SSDI. Part B costs a monthly premium unless your income is low enough to may have access to for the Medicare Savings Program, which can reduce or eliminate your premium. Part D and Medigap have separate costs that depend on which plan you choose.

What if I cannot afford the Part B premium?

Contact your state Medicaid office or call 1-800-MEDICARE to ask about the Medicare Savings Program. If your income is below your state's threshold, Medicaid will pay your Part B premium for you. You can also ask Social Security about Extra Help if you need help with Part D costs.

Do I have to enroll in Part D if I am on SSDI?

Part D is optional, but if you go without creditable drug coverage for more than 63 days and then enroll later, you will pay a permanent penalty. If you do not take any prescription medications, you may not need it, but it is worth enrolling to avoid the penalty.

Will my SSDI payment go down when I enroll in Medicare?

No. Your SSDI payment stays the same. Medicare premiums come out of your own money, though you can have them deducted from your SSDI check for convenience. Your monthly SSDI amount does not change when you become Medicare-may be able to access.

What is the difference between Medigap and Medicare Advantage?

Medigap is supplemental insurance that works alongside Original Medicare and covers costs Medicare does not. Medicare Advantage (Part C) is an alternative to Original Medicare offered by private insurers and often has lower premiums but higher out-of-pocket costs for specific services. You choose one or the other, not both.