When you retire in Texas from a job that provided health coverage, you generally have an 8-month Medicare Special Enrollment Period (SEP) to sign up for Part B without a late penalty — starting the month after your employment or your employer group health coverage ends, whichever comes first. During that same window, you also have opportunities to enroll in a Medicare Advantage plan or Part D drug plan.
That said, “employer coverage” doesn’t always mean what people assume, and COBRA and retiree coverage follow different rules. Getting the sequence right protects you from lifelong penalties and coverage gaps.
Texas Medicare Solutions is a BBB-accredited Medicare insurance agency serving Texas seniors, and our licensed agents walk retirees through this transition every week.
Do I Have to Sign Up for Medicare When I Retire in Texas?
If you’re already 65 or older when you retire, yes — you’ll need to make Medicare decisions, even if you enrolled in premium-free Part A when you turned 65 and delayed Part B.
The trigger isn’t always the retirement date itself. It’s the loss of creditable group health coverage tied to active employment.
What Counts as “Creditable” Employer Coverage?
For delaying Part B without penalty, “creditable” generally means health coverage tied to active employment (yours or your spouse’s) at a large employer.
Coverage that generally does not count for delaying Part B includes:
- COBRA (continuation coverage after your job ends)
- Retiree health plans (coverage that starts after you leave employment)
- ACA Marketplace plans
- Short-term or limited-benefit plans
If your employer has fewer than 20 employees, Medicare is usually your primary coverage at 65 — so delaying Part B could leave you with gaps.
This distinction is one of the most misunderstood rules in Medicare and worth a call before you make the switch.
How Long Is the Special Enrollment Period After Employer Coverage Ends?
Once your active-employment coverage ends, you generally have an 8-month Part B Special Enrollment Period (SEP).
Some key notes:
- The SEP starts the month after your employment or group coverage ends, whichever is first.
- If you enroll during the SEP, coverage typically starts the month after you sign up.
- The Part D SEP for prescription coverage is shorter (generally 63 days), so don’t wait until the end of your Part B window to think about drug coverage.
Miss the Part B SEP without qualifying alternate coverage and you may have to wait for the General Enrollment Period (January 1 – March 31), which triggers Part B late enrollment penalties that follow you for life.
What About COBRA and Medicare?
COBRA is a common source of confusion.
A few things to know:
- COBRA does not extend your Part B SEP. Your 8-month window starts when your active employment coverage ends — not when COBRA ends.
- Medicare is generally primary over COBRA once you’re eligible.
- If you take COBRA and skip Part B, you may face a lifelong penalty.
Most Texans retiring with an employer plan should not rely on COBRA as a substitute for Medicare Part B.
What Steps Should I Take Before I Retire?
A retirement-to-Medicare transition works best when you plan it 3–6 months ahead.
Confirm Your Medicare Eligibility
Verify your Part A and Part B enrollment status through your Social Security account.
Get a Letter of Creditable Coverage
Ask your employer’s HR or benefits team for written confirmation.
Decide on Your Medicare Path
Choose between Original Medicare with a Medigap policy and a Part D plan, or a Medicare Advantage plan that bundles benefits.
List Your Doctors and Prescriptions
This drives whether a plan actually fits your needs.
Coordinate Coverage End and Start Dates
Avoid overlapping premiums or coverage gaps.
Talk to a Licensed Agent
Have a plain-language conversation before you enroll.
What If My Spouse Is Still on My Employer Plan?
When you retire and your spouse loses their coverage through your job, they’ll need a new plan — Marketplace coverage, retiree benefits, or their own employer plan if applicable.
If your spouse is also Medicare-eligible, this is often the right moment to review Medicare options for both of you together.
What Happens If I Keep Working Past 65 in Texas?
If you continue working past 65 with creditable employer coverage:
- Many Texans enroll in premium-free Part A while delaying Part B.
- Whether it makes sense to enroll in Part B depends on your employer’s size, the plan’s costs, and how it coordinates with Medicare.
- HSA rules change once you enroll in any part of Medicare — you can no longer contribute to a Health Savings Account.
The right choice varies. A licensed agent can help you weigh cost, coverage, and flexibility.
A Simple Timeline for a Smooth Transition
3–6 Months Before Retirement
- Confirm Medicare eligibility.
- Request your creditable coverage letter.
- Review your Medicare plan options.
1–3 Months Before Retirement
- Enroll in Part B if needed.
- Choose Medicare Advantage or Medigap + Part D.
Month Your Employer Coverage Ends
- Confirm your new Medicare-based coverage is active.
Ongoing
- Review your plan each fall during the Annual Enrollment Period (AEP) to make sure it still fits.
Frequently Asked Questions
How long do I have to enroll in Medicare after I retire in Texas?
Answer: Generally an 8-month Special Enrollment Period for Part B, starting the month after your employment or employer group coverage ends, whichever comes first.
Does COBRA count as creditable coverage for delaying Part B?
Answer: Generally no. COBRA does not extend your Part B enrollment window, and relying on it can trigger lifelong penalties.
What if I retire before I turn 65?
Answer: You’ll need bridge coverage (retiree plan, Marketplace, or a spouse’s plan) until Medicare eligibility begins. Plan the sequence carefully with a licensed agent.
Can I keep my Health Savings Account after I enroll in Medicare?
Answer: You can spend from an existing HSA, but you generally cannot contribute to an HSA once you’re enrolled in any part of Medicare.
When should I start planning the transition?
Answer: Ideally 3–6 months before your retirement date, so you have time to confirm eligibility, gather paperwork, and choose coverage.
Schedule a Free Educational Review
Retiring is a milestone, and moving from employer coverage to Medicare should feel just as smooth.
A licensed Texas Medicare Solutions agent can walk you through your options in plain language — no pressure.
Schedule a free educational review today.
TPMO Disclaimer
We do not offer every plan available in your area. Currently we represent 14 organizations which offer 109 products in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Program (SHIP) to get information on all of your options.