Medicare and COBRA

Leaving a job near 65? 1-800-MEDIGAP helps you avoid Medicare penalties and gaps, for free.

📞 Call 1-800-633-4427 — FreeAmerica's Trusted Toll-Free Number

Healthcare workers in protective gear assisting elderly people indoors, highlighting COVID-19 care, illustrating Medicare and COBRA — 1-800-MEDIGAP, America's Trusted Toll-Free Number. — Photo: Kampus Production / Pexels

Quick answer

COBRA is not considered active employer coverage for Medicare purposes, so it does not let you delay Part B without penalty. If you are 65 or older, you should generally enroll in Medicare when you lose job-based coverage, not rely on COBRA, to avoid lifelong late penalties, per CMS.

Mixing Medicare and COBRA causes costly mistakes. Here is how to coordinate them and avoid permanent penalties.

Does COBRA count as coverage to delay Medicare?

No. This is the most dangerous misunderstanding seniors face. COBRA continuation coverage does not count as active employer coverage for Medicare, so it does not protect you from the Part B late-enrollment penalty. If you are 65 or older and lose job-based insurance, your Special Enrollment Period to join Part B is triggered by the end of active employment, not by the end of COBRA. Waiting until COBRA runs out can leave you with a coverage gap and a permanent penalty that raises your Part B premium for life. The rules are unforgiving. Call 1-800-MEDIGAP before you make a decision.

How to coordinate Medicare and COBRA correctly

If you are eligible for Medicare when you leave your job, the safest move is usually to enroll in Medicare Part A and Part B during your Special Enrollment Period rather than relying solely on COBRA. You generally have 8 months from the end of employment (or loss of group coverage) to enroll in Part B penalty-free. Medicare becomes your primary payer once you are eligible, and COBRA may pay little. If you take COBRA without enrolling in Medicare, your claims may be underpaid. Coordinating the timing precisely is essential. 1-800-MEDIGAP can map out the right sequence for your situation at no cost.

Special rules and common pitfalls

Several traps catch people. If you already have Medicare when you become eligible for COBRA, you can keep both, but Medicare pays first. If you have COBRA first and then become Medicare-eligible, your COBRA may end. Disability and ESRD situations follow different coordination rules. Drug coverage is another trap: COBRA drug coverage may or may not be creditable for Part D, affecting future penalties. Each scenario has its own deadline and consequence, and a wrong assumption can cost thousands over time. Do not guess with these rules. Call 1-800-MEDIGAP for free, personalized help avoiding the most expensive mistakes.

More on Special Situations & Dual-Eligible

← Special Situations & Dual-Eligible (overview)pillar guide Medicare Savings Program Medicare and Medicaid Dual Eligible QMB Program Medicare for ESRD Medicare Special Needs Plans Dual Special Needs Plan Medicare Disability Under 65

Frequently asked questions

Can I use COBRA instead of enrolling in Medicare?+

Not safely if you are 65 or older. COBRA does not count as active employer coverage, so it will not protect you from the Part B late-enrollment penalty. You should generally enroll in Medicare when your active employment ends, not when COBRA ends.

Does COBRA delay the Part B enrollment deadline?+

No. Your Special Enrollment Period for Part B is triggered by the end of active employment, not by the end of COBRA. You typically have 8 months from leaving the job to enroll penalty-free. Relying on COBRA can create a permanent penalty and coverage gap.

Which pays first, Medicare or COBRA?+

If you are Medicare-eligible, Medicare generally pays first and COBRA pays second, often leaving COBRA to pay little. That is why enrolling in Medicare on time matters, otherwise your claims may be underpaid. Call 1-800-MEDIGAP to coordinate correctly.

What happens if I take COBRA and skip Part B?+

You risk a lifelong Part B late-enrollment penalty and a possible coverage gap, since COBRA does not extend your enrollment window. When you finally enroll, your premium could be permanently higher. Avoid this by enrolling in Medicare when your job coverage ends.

Is COBRA drug coverage creditable for Part D?+

It depends on the plan. Some COBRA drug coverage is creditable for Medicare Part D and some is not, which affects whether you owe a Part D late penalty later. Check your plan's creditable-coverage notice, or call 1-800-MEDIGAP for free help.

Talk to a licensed specialist — free.

America's Trusted Toll-Free Number. One call answers it all, at no cost and no obligation.

📞 Call 1-800-MEDIGAP