Working Past Age 65
Medicare Rules When Still Working
Educational Article Written By:
Justin Tomlin
Licensed Insurance Agent
FL W960118 · GA 3760385
3-minute read
Last Updated:
Disclosure: We do not offer every plan available in your area. Currently we represent 5 organizations which offer 55 products in your area. Please contact Medicare.gov, call 1-800-MEDICARE, or your local State Health Insurance Program (SHIP) for more information on all of your options. Organization and product counts are based on the Gainesville, FL area. Actual plans available may vary based on your ZIP code.
What Changes When You Turn 65 at Work
Turning 65 triggers Medicare eligibility for most people. For those still working and covered through an employer, that eligibility does not always require immediate action. Whether to enroll right away — or wait — depends on how your employer plan interacts with Medicare.
The Medicare Secondary Payer rule is the key factor. At a company with 20 or more employees, an employer group health plan is generally primary — it pays first, and Medicare pays second. At a company with fewer than 20 employees, Medicare typically pays first, making Part B enrollment more important from day one.
These rules apply to active employment. Coverage through a spouse’s employer follows similar logic. Confirm your employer’s size and plan type with your benefits administrator before making any enrollment decisions.
To learn more about delaying Part B enrollment, see Delaying Part B. Protecting Your Medigap Options →.
The Parts of Medicare
Medicare has four parts.
Part A covers inpatient hospital care, skilled nursing facilities, hospice, and some home health services. Most people qualify for Part A without a monthly premium based on their own or a spouse’s work history.
Part B covers outpatient care — doctor visits, preventive services, lab work, and medical equipment. It carries a monthly premium. Enrolling in Part B while an employer plan is still primary is generally optional, but the timing affects future Medigap options. See Delaying Medicare Part B With Employer Group Health Coverage.
Part C — also called Medicare Advantage — and Part D, which covers prescription drugs, are not required at 65. Delayed Part D enrollment without qualifying drug coverage in place can result in a permanent late penalty.
HSA Contributions and Medicare
A Health Savings Account — commonly called an HSA — is a tax-advantaged account used to pay for eligible medical expenses. Contributions are only permitted when enrolled in a qualifying high-deductible health plan and not enrolled in any part of Medicare.
Once Part A, Part B, or both begin, HSA contributions must stop. This is true even if the employer plan is still the primary payer. Part A enrollment alone is enough to end contribution eligibility.
One important detail: enrolling in Social Security after age 65 can trigger retroactive Part A coverage going back up to six months. That retroactive enrollment can create an HSA problem even when Medicare enrollment was not the intent. Those who want to keep making HSA contributions should generally delay Social Security benefits as well.
When Employer Coverage Ends
When active employment ends or employer group coverage is lost, a Special Enrollment Period generally allows Part B enrollment without a late penalty. That window is typically eight months from the date employment or employer coverage ends, whichever comes first.
The date Part B begins also starts the Medigap open enrollment clock. That six-month window allows enrollment in Medicare Supplement Insurance without medical underwriting. Once it closes, health history can affect eligibility and cost. Timing the transition carefully protects future coverage options.
Official Sources for Making Coverage Decisions
- Medicare.gov or call 1-800-MEDICARE (1-800-633-4227) — Official federal resource for plan comparison and enrollment
- ShipHelp.org — Find free, unbiased local Medicare counseling.
- SSA.gov or call 1-800-772-1213 — Medicare enrollment for most beneficiaries
Important Considerations
We do not offer every plan available in your area. Currently we represent 5 organizations which offer 55 products in your area. Organization and product counts are based on the Gainesville, FL area. Actual plans available may vary based on your ZIP code.
This article is provided for educational purposes only and does not recommend any specific plan or carrier. CHL Insurance Solutions, LLC is a private, licensed insurance agency (FL Lic: L131407; GA Lic: 241106 — Verify →). Not affiliated with or endorsed by the US government or the federal Medicare program.
© CHL Insurance Solutions, LLC. All Rights Reserved. Privacy Policy →
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