The Retiree Report

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Taxes

This article is general information, not medical advice. Talk with a licensed clinician before making any decision about your care.

HSA after 65: what changes about taxes and withdrawals in 2026

Turn 65 and your health savings account quietly changes character. The 20% penalty that used to punish non-medical withdrawals simply goes away, which means the account starts behaving a lot like a traditional IRA you can also spend tax-free on health care. But two things don’t change: you still owe ordinary income tax on money you pull out for non-medical reasons, and the moment you touch Medicare, you have to stop contributing. Get the timing wrong and the IRS can charge a 6% tax on contributions you may not have even realized you made.

What actually changes the day you turn 65?

Before 65, an HSA is strict. Spend the money on something that isn’t a qualified medical expense and you owe income tax plus a 20% additional tax on top. That penalty is what keeps the account pointed at health care.

At 65, the penalty disappears. According to IRS Publication 969, “there is no additional tax on distributions made after the date you are disabled, reach age 65, or die.” So if you withdraw $3,000 at 67 to fix the roof, you won’t pay the 20% surcharge — you’ll just report that $3,000 as ordinary income, the same as a withdrawal from a pre-tax IRA.

That’s the whole appeal. Spend it on a doctor and it’s tax-free; spend it on a vacation and it’s taxed like retirement income but never penalized. Not many accounts give you both doors.

The “stealth IRA” — and where it stops being one

People call the post-65 HSA a stealth IRA for a reason. Used for health costs, it’s the rare account that’s triple tax-advantaged: money goes in pre-tax, grows tax-free, and comes out tax-free. Used for anything else after 65, it converts into something that looks like a traditional IRA — taxable on the way out, but no longer penalized.

Here’s the part worth slowing down on. The tax-free magic only survives if the dollars eventually match a qualified medical expense. And there’s no deadline on that match. If you paid a $600 dermatology bill out of pocket in 2018 and kept the receipt, you can reimburse yourself tax-free from your HSA in 2026 — years later — as long as the expense happened after you opened the account and wasn’t covered another way. Some retirees treat the account as a shoebox of receipts they can cash in whenever they want.

Picture it with real numbers. Say you’re 68 with $40,000 in an HSA and a stack of unreimbursed medical receipts going back five years totaling $9,000. You can withdraw that $9,000 today, tax-free, no questions asked — it’s just paperwork catching up to money you already spent. Pull the next $5,000 to cover a kitchen repair, though, and that $5,000 lands on your tax return as ordinary income. Same account, two completely different tax outcomes, decided entirely by what the dollars are matched against.

Does that mean you should never spend it on non-medical things? Not at all. It just means every non-medical dollar is a taxable dollar, so it belongs in the same mental bucket as your IRA withdrawals, not your tax-free Roth.

Which bills stay completely tax-free after 65

This is where the HSA earns its keep in retirement. Once you’re 65 or older, Publication 969 confirms you can use HSA money tax-free to pay premiums for Medicare and other health coverage — Part A, Part B, Part D, and Medicare Advantage (Part C) all count. For most retirees, that’s the single biggest recurring health bill, and paying it with pre-tax HSA dollars is a quiet win.

There’s one carve-out people trip over: Medigap. A Medicare supplement policy is not a qualified expense, so if you pay a Plan G or Plan N premium from your HSA, that withdrawal is taxable. (Confusing, because Medigap is health insurance — but the statute treats supplemental policies differently.) AARP puts it plainly: you can withdraw tax-free for Medicare premiums, but HSA funds cannot be used to pay Medigap premiums.

Beyond premiums, the usual qualified expenses still apply — dental work, hearing aids, eyeglasses, prescriptions, and qualified long-term care services. If your retirement budget is tight, paying those from the HSA stretches every dollar, since none of it gets taxed. For how Medicare premiums interact with your tax return more broadly, see our piece on the Medicare premium tax deduction.

Why does keeping your HSA and enrolling in Medicare backfire?

Because you can’t do both at once. Publication 969 is blunt: “Beginning with the first month you are enrolled in Medicare, your contribution limit is zero.” Notice it says enrolled in Medicare, not age 65. If you delay Medicare and keep working under a qualifying high-deductible plan, you can keep contributing past 65. Sign up for any part of Medicare and the contribution door closes.

The trap is the timing. When you finally enroll in Part A — or claim Social Security, which auto-enrolls you in Part A — coverage is backdated. Medicare.gov explains that Part A can be retroactive for up to six months (but never earlier than the month you turned 65). So your card might say your coverage started in January even though you applied in July.

Any HSA contribution that lands inside that retroactive window becomes an excess contribution. And excess contributions, if you don’t pull them back out, get hit with a 6% excise tax for every year they sit in the account. AARP’s guidance is to stop HSA contributions six months before you apply for Medicare or Social Security. One more thing that catches people: your employer’s contributions count too, so payroll deposits you didn’t personally make can still be penalized.

The 2026 numbers and what to do next

If you’re still HSA-eligible in 2026 — under 65 or working past 65 with a qualifying plan and no Medicare — the IRS raised the limits. Per Rev. Proc. 2025-19, here’s where things land:

Note that the $1,000 catch-up requires you to not be enrolled in Medicare — same rule as the base contribution.

So what should you actually do? If you’re approaching 65 and still working, decide deliberately whether to delay Medicare or take it, and mark the calendar: stop all HSA deposits, including any from your employer, at least six months ahead of your application. If you’re already retired and on Medicare, you can’t add new money, but you can keep using what’s there — start by reimbursing yourself tax-free for Medicare premiums and any old medical receipts you saved. Because non-medical withdrawals are taxable, coordinate them with your other retirement income the same way you’d plan IRA distributions; our guide to RMD rules in 2026 covers that wider picture. This is general information, not tax advice — a CPA or enrolled agent can confirm how these moves land on your specific return.

What to remember

Three things carry the day. At 65 the 20% penalty on non-medical HSA withdrawals vanishes, so the account works like a tax-free health fund and a traditional-IRA-style nest egg rolled into one — but non-medical withdrawals are still ordinary income. Medicare premiums (Parts A, B, D, and Advantage) are qualified, tax-free expenses; Medigap is not. And the biggest avoidable mistake is contributing too close to Medicare enrollment, because Part A backdates up to six months and turns those deposits into excess contributions taxed at 6%.

Sources

  • IRS. “Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans.” 2025. https://www.irs.gov/publications/p969
  • IRS. “Rev. Proc. 2025-19 — 2026 inflation-adjusted HSA and HDHP amounts.” 2025. https://www.irs.gov/pub/irs-drop/n-26-05.pdf
  • Medicare.gov / CMS. “Working past 65.” 2026. https://www.medicare.gov/basics/get-started-with-medicare/medicare-basics/working-past-65
  • AARP. “Can I Have Medicare and Add to a Health Savings Account?” 2026. https://www.aarp.org/medicare/health-savings-account/