Can I get Medicare under 65?

Yes. You qualify automatically after receiving Social Security Disability Insurance (SSDI) for 24 months, or immediately if you have ALS or End-Stage Renal Disease. The 24-month count starts with your first SSDI payment, not your application date.

Do I get Medicare faster with ALS?

Yes. People with ALS (amyotrophic lateral sclerosis) become eligible for Medicare the same month their SSDI benefits start. There is no 24-month waiting period for ALS.

Can I keep Marketplace coverage and Medicare?

You shouldn't. Once eligible for Medicare, you lose any premium tax credits on Marketplace coverage. Switch to Medicare during your IEP to avoid both a Part B late penalty and an unexpected tax bill from clawed-back subsidies.

Does disability Medicare give me Medigap rights?

Federal law only guarantees Medigap Open Enrollment at 65. Under-65 disability enrollees have guaranteed-issue Medigap in some states (including California, Massachusetts, Maine, Minnesota, and New York), but not all. Check your state before assuming.

What happens to my disability Medicare when I turn 65?

You get a new Medigap Open Enrollment window the month you turn 65 and are enrolled in Part B. This is your guaranteed-issue shot regardless of health, even if you had Medicare for years on disability.

Medicare under 65: disability, SSDI, and ALS

Medicare isn't only for people turning 65. We see a steady stream of younger adults qualifying through disability and getting bad information about timing, Medigap, and what happens when they reach 65.

The short version

Most people under 65 qualify for Medicare after 24 months of SSDI payments. ALS qualifies immediately. End-Stage Renal Disease (ESRD) has its own path. Medigap rights vary sharply by state, so plan around your state's rules, not federal law alone.

The SSDI 24-month rule

If you receive Social Security Disability Insurance, Medicare starts the 25th month after your first SSDI payment. SSA enrolls you automatically. Your Medicare card arrives by mail about 3 months before coverage begins.

SSDI back pay counts. If your application took 18 months and SSA awarded retroactive benefits, your 24-month Medicare clock started with the first month of awarded benefits, not the month they actually paid you. People are often closer to Medicare than they think.

ALS: no waiting period

People diagnosed with amyotrophic lateral sclerosis qualify for Medicare the same month their SSDI benefits begin. Congress eliminated the 24-month wait for ALS in 2020. If you or a family member just received a diagnosis, file for SSDI immediately — the Medicare timeline runs off that.

Coverage choices under 65

Once enrolled, you have the same Part A, B, C, and D structure as anyone else. You can choose Original Medicare with or without Medigap, or Medicare Advantage, or a Special Needs Plan if you qualify.

The catch is Medigap. Federal law only guarantees Medigap at 65. Under 65, your rights depend on your state.

See how Medigap Plans G and N compare

States with under-65 Medigap protections

Some states require insurers to sell Medigap to under-65 enrollees on the same terms as 65+ enrollees. Others let insurers sell at higher rates or limit which plans are available. A few offer no protection at all.

Generally strong protections: California, Connecticut, Maine, Maryland, Massachusetts, Minnesota, New York, Oregon, Vermont
Partial protections: Florida, Georgia, Illinois, Michigan, New Hampshire, New Jersey, Pennsylvania, Tennessee, Wisconsin
No federal or state protection: several states leave under-65 Medigap to insurer discretion

State rules change. Check your state's current rule before assuming you can buy Medigap under 65.

Turning 65 with disability Medicare

When you turn 65, you get a fresh 6-month Medigap Open Enrollment Period. This is the single most important window for under-65 enrollees, because it's federal — every state must let you buy any Medigap plan at the best available rate regardless of health.

If you were stuck on Medicare Advantage at age 50 because Medigap was unaffordable in your state, this is your chance to switch. Apply for Medigap a few months before your 65th birthday.

Working while on disability Medicare

SSA's Ticket to Work and Trial Work Period rules can let you work without immediately losing Medicare. Extended Medicare coverage continues for at least 93 months (about 7.5 years) after your Trial Work Period ends, even if you no longer get SSDI cash benefits.

Frequently asked questions

Can I get Medicare under 65?: Yes. You qualify automatically after receiving Social Security Disability Insurance (SSDI) for 24 months, or immediately if you have ALS or End-Stage Renal Disease. The 24-month count starts with your first SSDI payment, not your application date.
Do I get Medicare faster with ALS?: Yes. People with ALS (amyotrophic lateral sclerosis) become eligible for Medicare the same month their SSDI benefits start. There is no 24-month waiting period for ALS.
Can I keep Marketplace coverage and Medicare?: You shouldn't. Once eligible for Medicare, you lose any premium tax credits on Marketplace coverage. Switch to Medicare during your IEP to avoid both a Part B late penalty and an unexpected tax bill from clawed-back subsidies.
Does disability Medicare give me Medigap rights?: Federal law only guarantees Medigap Open Enrollment at 65. Under-65 disability enrollees have guaranteed-issue Medigap in some states (including California, Massachusetts, Maine, Minnesota, and New York), but not all. Check your state before assuming.
What happens to my disability Medicare when I turn 65?: You get a new Medigap Open Enrollment window the month you turn 65 and are enrolled in Part B. This is your guaranteed-issue shot regardless of health, even if you had Medicare for years on disability.

Plan around your state's Medigap rules

The under-65 Medicare picture is harder than the 65+ one because federal law leaves so much to states. We'll help you map your options.

Check my deadline Medicare and ESRD

Educational resource. Not legal, tax, or insurance advice.