Start with the coverage you have today
If you are working past 65, the first question is not whether you are employed. It is what kind of health coverage you have and whose current employment creates that coverage.
Coverage through your own active job or a spouse's active job may be treated differently from COBRA, retiree coverage, marketplace coverage, VA-related care, union retiree benefits, or an individual policy. Ask the benefits office to explain the coordination rules before you delay Medicare.
When delaying Part B may be possible
Some people with current job-based group health coverage can delay Part B without a late-enrollment penalty. Social Security explains that employer group coverage based on current employment may allow a Special Enrollment Period later.
Do not rely on this general rule without checking your own situation. Employer size, spouse coverage, plan rules, disability eligibility, and whether coverage is truly based on current employment can all affect the answer.
Small employer, retiree, and COBRA questions
Small-employer coverage can coordinate with Medicare differently than large-employer coverage. If Medicare is expected to pay first and you delay Part B, claims or penalties may become a problem.
COBRA and retiree coverage deserve special caution. Official Medicare guidance says COBRA does not extend the limited time to sign up for Part B. Retiree coverage may also expect you to have Medicare Part A and Part B before it pays correctly.
Do not forget prescription drug creditability
Part D timing is separate from Part B timing. If you delay Medicare drug coverage because you have employer or spouse drug coverage, confirm whether that coverage is creditable.
Keep the annual creditable coverage notice from the employer or plan. You may need that proof later if you enroll in Part D or a Medicare Advantage plan with drug coverage after work coverage ends.
What to do before work coverage ends
Build your timeline before the last week of work. Write down the last day of active employment, the last day of group health coverage, the date any COBRA or retiree option begins, and the month you want Medicare coverage to start.
If you already have Part A and need Part B because job-based coverage is ending, Medicare.gov describes a process that may include a Part B application and employer coverage documentation. Verify the current steps with Medicare.gov, Social Security, or the Railroad Retirement Board if applicable.
When licensed help may be useful
Licensed help may be useful after you understand the timing question and need to compare coverage paths. First confirm whether Medicare should start, which parts are needed, and whether employer or retiree coverage changes your options.
This website provides independent education and may help connect visitors with licensed professionals where available. It does not enroll visitors, recommend specific plans, or claim to offer every plan.
Questions to ask
- Is my coverage based on my current employment or my spouse's current employment?
- How many employees are in the employer group plan, and who pays first?
- Can I delay Part B without a late-enrollment penalty?
- Is my prescription drug coverage creditable?
- Will enrolling in Part A affect HSA contributions?
- What exact date does active employer coverage end?
Quick review checklist
- Assuming all employer coverage lets you delay Part B.
- Treating COBRA as if it extends the Medicare Part B Special Enrollment Period.
- Starting Medicare or Social Security without checking HSA contribution rules.
- Forgetting to keep written proof of creditable prescription drug coverage.
- Leaving active employment before confirming the Medicare start date and employer coverage end date.
When to get licensed help
Licensed help may be useful when you need to compare coverage choices, confirm enrollment timing, or understand how your current coverage coordinates with Medicare. This website does not sell, enroll in, or recommend specific Medicare plans.
Frequently asked questions
Do I have to sign up for Medicare if I am still working?
Not always. Some people with current job-based group coverage can delay Part B, but the answer depends on the coverage source, employer rules, and whether the coverage protects you from penalties or gaps.
Does COBRA count as current employer coverage for delaying Part B?
COBRA should be reviewed carefully because it is not the same as active employer coverage. Medicare.gov warns that COBRA does not extend the limited time to sign up for Part B.
Can I keep contributing to an HSA after Medicare starts?
Medicare enrollment generally stops HSA contribution eligibility. If you have an HSA, review the timing with your benefits office or tax professional before enrolling in Medicare or starting Social Security.
What should I ask my employer before delaying Medicare?
Ask whether the plan is based on current employment, whether Medicare would pay first or second, whether Part B can be delayed, whether drug coverage is creditable, and what documents you will need when coverage ends.
Sources and official references
- Medicare.gov: Get started with Medicare
- Medicare.gov: Ready to sign up for Part A & Part B
- Medicare.gov: When can I sign up for Medicare?
- Medicare.gov: Working past 65
- Social Security: Part B if working and covered by an employer
- Medicare.gov: Parts of Medicare
- SHIP: State Health Insurance Assistance Program