Working Past 65: Group Plan, Medicare, HSA, and the Spouse
Priya, 66, is a full-time pharmacist at a 60-employee hospital and has never enrolled in Medicare. She earns $180,000 and is covered by the hospital's $3,000-deductible HDHP with an HSA; her husband Raj, 63, is covered as a dependent. She has contributed $3,000 to the HSA this year and plans to contribute the family maximum. She does not receive Social Security. She plans to retire at 68, in June. She asks whether the hospital plan still pays first, whether she should sign up for Medicare now, what happens to her HSA if she delays, and what Raj's options will be when she retires.
1. Which plan pays first now, and should Priya enroll in Medicare at 65?
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Primary payer Under the Medicare Secondary Payer working-aged rules, the group health plan of an employer with 20 or more employees pays first for an individual who has Medicare because of age and has current employment status - and for that person's spouse. The hospital has 60 employees and Priya is full-time, so the HDHP is primary and Medicare would be secondary. Enrolling in Part B now would mostly buy her secondary coverage she does not need.
Should she enroll?
- She may delay Part B without penalty while covered by the group plan based on current employment.
- When she retires at 68, she gets an 8-month Special Enrollment Period for Part B (plus a Part D SEP of about two months). Enrolling during the SEP means no late-enrollment penalty and no gap if she files two to three months before her last day.
- She must keep the employer's coverage notice; it is the documentation that waives the penalty.
Part A is the separate decision She is not receiving Social Security, so she is not auto-enrolled in Part A. Delaying Part A is what keeps her HSA-eligible (next task). If she has no reason to take it early, delaying Part A until retirement is the cleaner path - but she should confirm her hospital's plan does not require Medicare enrollment as a condition.
2. Trace what happens to Priya's HSA contributions when she eventually files for Medicare.
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The rule: HSA eligibility requires (among other things) that the person is not entitled to Medicare. Entitlement, not enrollment paperwork, is what ends eligibility - and Part A entitlement can be retroactive up to six months when someone files after age 65 and is not yet receiving Social Security.
Applied to Priya
- While she works, is covered by the qualifying HDHP, and has no Medicare entitlement, she may contribute up to the family limit plus her $1,000 catch-up.
- If she files for Part A at 68 in June, entitlement can be pushed back to the previous December. Any contribution made for December through June - her own and any employer contribution credited to her - is an excess contribution.
- Excess contributions left in the account are hit with a 6% excise tax for each year they remain. The fix is to withdraw the excess plus allocable earnings by the tax-filing deadline (including extensions).
- Practical sequencing: stop her contributions at least six months before the month she plans to file for Part A (or file for Part A prospectively and keep a clean paper trail).
The useful fact for the couple Raj is 63 and not entitled to Medicare. A spouse who is not entitled to Medicare can keep contributing to the HSA at the family limit as long as the HDHP provides family coverage, even if the other spouse is enrolled in Medicare. So the couple should shift future contributions into Raj's HSA.
She cannot use her own catch-up for months she is not an eligible individual, and the two catch-ups are never combined into one account.
3. Priya retires at 68. What are the coverage options for her and for Raj, and what mistake should she avoid?
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Priya at retirement
- Her group coverage ends, which triggers the 8-month Part B SEP. She should enroll in Part B effective the first of the month after her coverage ends, and pair it with a Medigap policy and Part D (Medigap has its own six-month open enrollment tied to Part B, and in most states insurers can underwrite after that window).
- The mistake to avoid: electing COBRA and treating it as coverage that lets her keep deferring Medicare. COBRA is not coverage based on current employment, so it does not extend or create an SEP, and as a secondary payer it pays after Medicare. Taking COBRA without Part B leaves her primary coverage gap and can expose her to a Part B late penalty if she misses the 8-month window.
Raj at 65 (about the time she retires)
- He has been covered as the spouse of a current employee at a 20+ employer, which lets him delay Part B the same way she did; when that coverage ends he has his own 8-month SEP and should use it.
- He is also a COBRA qualified beneficiary - qualified beneficiaries get up to 18 months when the qualifying event is the employee's termination of employment. That is an option, not a substitute for the SEP.
- Alternatively he can take a marketplace plan with a 60-day special enrollment period, with premium tax credits depending on household income; that usually beats COBRA once the subsidy is counted.
Sequence: confirm the last day of group coverage in writing, file Part B for both during their SEPs, and do not buy COBRA for either of them while a Medicare or marketplace path is cheaper.