Health Insurance From Early Retirement Until Medicare at 65
Key Takeaways
- Medicare starts at 65, so retiring earlier means funding your own coverage for the whole gap.
- The realistic sources are COBRA, a marketplace plan, a spouse's employer plan, and sometimes retiree coverage.
- The enhanced ACA subsidies expired December 31, 2025, so for 2026 the hard cliff at 400% of the federal poverty level is back. A dollar over the line and your credit is zero, not smaller.
- Take that credit in advance, finish the year over the line, and you repay all of it, uncapped.
- Neither COBRA nor a marketplace plan is qualifying coverage for Medicare. Only current employment lets you delay Part B without a lifetime penalty.
Most retirement plans are built around the portfolio: withdrawals, taxes, Social Security timing, market returns. Then health insurance shows up as one line item somebody guessed at.
Retire at 58 and you buy your own coverage for roughly seven years. Retire at 55 and it's a decade.
Once the employer subsidy stops, that premium is priced on your age, your county, your plan tier, and the income you report, which is why income planning drives your premium as much as your tax bill. And the income rules changed at the end of 2025.
In this guide, you'll see:
- Where pre-65 coverage actually comes from, and the sequencing trap to avoid
- Why your income plan is your premium plan under the 2026 subsidy rules
- What changes, automatically and not automatically, the month you turn 65
Table of Contents
Where Pre-65 Coverage Actually Comes From
There are four realistic sources, and most early retirees use more than one.
| Source | What to Know |
|---|---|
| COBRA continuation | Up to 18 months, capped at 102% of the full premium; unavailable at employers with fewer than 20 employees |
| ACA marketplace plan | Premium tax credit tied to reported income; 60-day special enrollment window around the coverage loss |
| Spouse's employer plan | Frequently the cheapest option if one spouse keeps working |
| Employer retiree coverage | Rare in the private sector, still common in public sector and union roles |
COBRA continuation. Federal COBRA rules generally let you keep your former employer's group plan for up to 18 months. Same plan, same network.
Not the same cost: you pay the whole premium including your employer's old share, capped by statute at 102% of the applicable premium. And COBRA doesn't apply where the employers sponsoring the plan normally had fewer than 20 employees the prior year, so retiring from a small firm can mean no federal COBRA right at all.
An ACA marketplace plan. Bought on the federal or a state exchange, with a premium tax credit based on the income you report. Losing job-based coverage is a qualifying life event, so you don't wait for open enrollment.
Write down 60 days: HealthCare.gov opens a special enrollment period if you lost qualifying coverage in the past 60 days or expect to lose it in the next 60. The window opens before the loss, so apply early and avoid an uncovered month.
A spouse's employer plan. If one spouse keeps working, adding the other is frequently the cheapest option available. Price it first.
Employer retiree coverage. Rare now in the private sector, still common in public sector and union roles. Read what happens at 65.
One sequencing trap deserves a warning. Electing COBRA now and switching to a marketplace plan in a few months isn't a move available to you. HealthCare.gov is explicit that voluntarily dropping COBRA does not open a special enrollment period, and neither does stopping payment. That window opens when COBRA is exhausted, not when you abandon it. Choose while the loss of employer coverage is still the qualifying event.
Assuming a large portfolio makes the choice simple is the mistake early retirees make.
Your Income Plan Is Your Premium Plan
Marketplace subsidies are calculated from modified adjusted gross income against the federal poverty level for your household size. A traditional IRA or 401(k) withdrawal is fully taxable and raises that figure, unless you have after-tax basis tracked on Form 8606.
A Roth conversion raises it, sometimes sharply, and so do realized capital gains. Brokerage basis does not, and neither do qualified Roth withdrawals, though qualified carries a five-year rule a first-time converter hasn't met.
The pre-65 years are also the best conversion window, because taxable income is low before Social Security and required minimum distributions begin. That tension used to be a matter of degree. Not anymore.
Here's the answer everyone comes for. The enhanced subsidies enacted in 2021 and extended through 2025 expired on December 31, 2025, and no extension has been enacted since. For 2026 the hard cliff at 400% of the federal poverty level is back in force. The IRS applicable percentage table for 2026 stops at the 300%-to-400% band. There's no tier above it. Cross the line and your credit isn't reduced. It's zero.
Eligibility for 2026 is measured against the poverty guidelines issued in 2025, which put a two-person household at $21,150. Four times that is $84,600.
Consider a hypothetical 60-year-old couple who need $95,000 a year to live on.
| Funding Source | Reported Income | % of Poverty Line | Premium Credit |
|---|---|---|---|
| Traditional IRA withdrawal | ~$95,000 | ~449% | $0 |
| Taxable brokerage account (gain only) | Under $84,600 | Under 400% | Intact |
Same spending, same portfolio. Only the account changed, and the difference isn't a somewhat higher premium. It's the whole subsidy.
Hypothetical example for illustration only. Results are not guaranteed and depend on individual circumstances.
A December Roth conversion that tips you a few hundred dollars over the line doesn't cost a few hundred dollars. It costs every dollar of subsidy you took that year.
The cliff has a second edge, at filing. Most households take the credit in advance, as a monthly reduction in the premium. Finish the year above 400% and you give those advance payments back, with no repayment cap for tax years after 2025.
Run the conversion math and the poverty-level math in the same sitting. There's a floor too: HealthCare.gov states that below 100% of poverty you probably won't qualify for savings at all, though you may qualify for Medicaid, which in a non-expansion state can leave you with nothing affordable.
One note matters more here than almost anywhere else: every figure above is dated. The poverty guidelines, the applicable percentage table, and the Medicare figures reset annually, and the subsidy rules themselves changed at the end of 2025. This article is current as of 2026 and is general information, not personalized advice. Confirm the year's numbers with HealthCare.gov, the IRS, and Medicare before acting, the same discipline behind retiring early without penalties or tax surprises.
What Changes the Month You Turn 65
At 65 the framework switches, and this is where the most expensive misunderstanding in early retirement lives. What protects you from Medicare's late-enrollment penalty is coverage from current employment, yours or a spouse's. Not simply being insured.
Medicare's own guidance is blunt: COBRA is not considered group health plan coverage, and it lists losing COBRA, losing retiree coverage, and having or losing marketplace coverage among the situations that don't qualify for a special enrollment period. Nearly everyone reading this is on a marketplace plan or COBRA at 65, so read that twice. Neither preserves your enrollment window. Only coverage from a job someone still holds does, and that window runs eight months from the month after the employment or the coverage ends, whichever comes first.
So the dates matter. Your initial enrollment period is seven months: the three months before the month you turn 65, that month, and the three after.
Miss it without current-employment coverage and your next chance is general enrollment, January 1 through March 31, with coverage starting the following month.
The Part B penalty is 10% of the premium for each full 12-month period you could have had Part B and didn't, for as long as you have Part B. Part D adds 1% of the national base beneficiary premium, $38.99 for 2026, for each month without creditable drug coverage, also for life.
Medicare doesn't switch itself on and marketplace coverage doesn't switch itself off. Unless you already draw Social Security you have to enroll, and HealthCare.gov is clear that marketplace coverage does not end when Medicare starts. You end it yourself.
Marketplace savings don't stop at 65 either; they stop once you have Part A or Part C. And stop health savings account contributions six months before you enroll, because they're barred once you have Medicare and Part A is backdated up to six months when you sign up after 65.
Medicare also prices itself on income, through the IRMAA surcharge, assessed on a two-year lookback and covered in our guide to avoiding IRMAA once you reach Medicare. Income you generate at 63 sets what you pay at 65, so plan the two stages as one income path.
How do I get health insurance if I retire before 65?
The usual sources are COBRA, an ACA marketplace plan, a working spouse's employer plan, or retiree coverage if your former employer still offers it. Losing job-based coverage opens a 60-day special enrollment window, and it opens before the coverage ends, so apply in advance.
Is COBRA or a marketplace plan better when you retire early?
It depends on the gap and your health. COBRA keeps your plan and network but costs up to 102% of the full premium, lasts 18 months, and does not exist at employers with fewer than 20 employees. A marketplace plan usually fits a multi-year bridge better. Decide at the outset, because dropping COBRA voluntarily does not open a special enrollment period. Only exhausting it does.
Does a Roth conversion affect my marketplace premium?
Yes, and for 2026 the effect is all or nothing. A conversion adds to the income used to calculate premium tax credits, and because the enhanced subsidies expired at the end of 2025, crossing 400% of the federal poverty level eliminates the credit rather than shrinking it. Take the credit in advance and you repay it, uncapped.
What happens to my coverage when I turn 65?
Nothing happens automatically, which is the trap. Unless you already draw Social Security you must actively enroll during the seven-month window around your 65th birthday, and you must end the marketplace plan yourself. Marketplace and COBRA coverage are not the qualifying coverage that lets you delay Part B; only current employment is. Enroll late without it and the Part B penalty is 10% for every full 12 months you waited, for as long as you have Part B.
Build the Bridge Before You Need It
The coverage gap between retirement and Medicare is solvable, but it has to be sequenced with the rest of your income plan, not left to whichever option is easiest to sign up for at the moment.
If you're weighing an early retirement date against the health insurance bridge, see how we work together to plan the income side and the coverage side as one decision.
This content is for educational purposes only and is not investment, tax, or legal advice.
