Can Retirees Open and Use a Health Savings Account

Retirees can open a new HSA, but only if they are not yet on Medicare

The moment you enroll in Medicare — any part of it, including Part A — you become ineligible to contribute to an HSA. This is the hard boundary. If you are already retired but not yet on Medicare, you can open an HSA and contribute to it the same way a working person does. Once Medicare starts, contributions stop, but the money already in the account stays there and you can withdraw it tax-free for may have access to medical expenses for the rest of your life.

The timing matters because many people retire before 65. If you retire at 62 and do not enroll in Medicare until 65, those three years are a window to fund an HSA. If you retire at 65 and enroll in Medicare when ready, that window closes on day one.

There is also a special rule called the HSA grace period. If you have an HSA when you turn 65 and enroll in Medicare, you can keep the account and continue to withdraw from it. You straightforward cannot add new money to it. This is different from most other retirement accounts — the HSA does not force you to take distributions, and the money does not expire.

Key Takeaways

You can open an HSA after retirement only if you have not yet enrolled in any part of Medicare.
Once you enroll in Medicare, you cannot make new contributions to an HSA, but you can withdraw existing funds for medical expenses without penalty or income tax.
If you retire before 65 and delay Medicare enrollment, the years before Medicare starts are your opportunity to fund an HSA.
An HSA owned by a retiree works the same way as one owned by a working person — there is no separate "retiree HSA" product.

What you need to open an HSA as a retiree

You need the same things any HSA account holder needs: a high-deductible health plan (HDHP) and a bank or financial institution that offers HSA accounts. The HDHP is the gating requirement. You cannot open an HSA without being enrolled in one, and you cannot keep contributing to an HSA once you drop the HDHP coverage.

If you are retired and buying your own health insurance through the marketplace or a private insurer, check whether the plan qualifies as an HDHP. The plan must meet IRS deductible and out-of-pocket limits — these change each year. For 2024, an HDHP for individual coverage must have a deductible of at least $1,600 and out-of-pocket maximum of no more than $8,050. For family coverage, those numbers are $3,200 and $16,100. Plans sold through the Affordable Care Act marketplace sometimes include HDHP options; plans sold directly by insurers do as well.

Once you have the HDHP, you open the HSA with a bank, credit union, or investment firm that administers them. You will provide your Social Security number, proof of HDHP enrollment, and the account funding amount. Some retirees fund the account in a lump sum; others set up monthly contributions. The account works like a savings account or investment account depending on which institution you choose.

How Medicare enrollment stops HSA contributions

Medicare enrollment and HSA contributions are linked by federal law. The moment you enroll in Medicare Part A, Part B, or Part D, you lose the right to contribute new money to an HSA. You do not have to withdraw the money; you do not have to close the account. You straightforward cannot add to it.

This applies even if you enroll in Medicare but keep your HDHP. The HDHP coverage becomes irrelevant once Medicare is active — the law treats Medicare as primary coverage, and you cannot be in an HDHP and Medicare at the same time for HSA purposes. Some retirees do keep both coverages running (HDHP as secondary), but the HSA contribution window closes regardless.

If you enroll in Medicare retroactively — for example, you turn 65 in March but do not enroll until June — your HSA contribution may be able to access ends on the first day of the month you turn 65, not the day you actually enroll. This is important if you are trying to squeeze in a final contribution before Medicare takes effect.

Using HSA funds after Medicare enrollment

Once you are on Medicare, the HSA becomes a tax-advantaged medical expense fund. You can withdraw money from it to pay for Medicare premiums (Part B, Part D, and supplemental insurance), copays, coinsurance, deductibles, and other may have access to medical expenses. Dental, vision, and hearing care count as may have access to expenses, even though Medicare does not cover them.

Withdrawals for may have access to medical expenses are tax-free and penalty-free, regardless of your age. This is different from a traditional IRA or 401(k), where withdrawals before 59½ usually trigger a 10 percent penalty. The HSA has no age restriction on penalty-free withdrawals — only on the type of expense.

If you withdraw money for something that is not a may have access to medical expense, you owe income tax on that withdrawal plus a 20 percent penalty. After age 65, the penalty goes away, but the income tax remains. This makes the HSA less flexible than a regular savings account in retirement, but more flexible than a traditional retirement account.

Retirees who enrolled in Medicare before opening an HSA

If you are already on Medicare, you cannot open a new HSA. This is absolute. Some retirees ask whether they can disenroll from Medicare, open an HSA, and re-enroll. Disenrolling from Medicare is possible but comes with penalties and coverage gaps that make this strategy impractical for most people. If you missed the window to open an HSA before Medicare, that window is closed.

If you have a spouse who is not yet on Medicare, that spouse can open an HSA independently. The accounts are separate; you cannot combine them or transfer funds between them. Each person needs their own HDHP and their own HSA account.

HSA contribution limits for retirees

The annual contribution limit for an HSA is set by the IRS and changes each year. For 2024, the limit is $4,150 for individual coverage and $8,300 for family coverage. If you are 55 or older, you can contribute an additional $1,000 per year — a catch-up contribution. This applies whether you are working or retired.

You can only contribute up to the limit for the months you are HSA-may be able to access. If you enroll in Medicare in June, you can contribute a prorated amount for January through May, not the full annual limit. Some HSA administrators calculate this automatically; others require you to report the enrollment date so they can adjust your limit.

Contributions can be made by you, your employer (if you are still working part-time), or anyone else on your behalf. The money counts toward the annual limit regardless of who deposits it. If you receive employer contributions and also contribute yourself, the total cannot exceed the annual limit.

Tax treatment of HSA funds in retirement

An HSA is one of the few accounts where money can be withdrawn tax-free in retirement if used for the right purpose. Contributions are tax-deductible (or made with pre-tax money if your employer funds it), growth is tax-free, and withdrawals for may have access to medical expenses are tax-free. This triple tax advantage is why financial advisors sometimes recommend funding an HSA even if you do not need the money when ready.

If you withdraw money for a non-medical expense after age 65, you owe income tax but not the 20 percent penalty. This makes the HSA function like a traditional IRA after 65 — less restrictive than before, but still taxable. Some retirees use this feature intentionally, treating the HSA as a secondary retirement savings account once they turn 65 and no longer need to worry about the penalty.

You are not required to take distributions from an HSA at any age, unlike traditional IRAs which have required minimum distributions starting at age 73. An HSA can sit untouched and grow for decades, or you can withdraw from it as needed. This makes it useful for retirees who want to preserve assets or delay accessing retirement funds.

Frequently Asked Questions

Can I open an HSA after I retire if I am 65 and not yet on Medicare?

Yes, if you have not enrolled in any part of Medicare and you are covered by an HDHP. The age 65 itself does not disqualify you — only Medicare enrollment does. You can open and fund an HSA at 65, 70, or any age, as long as Medicare has not started.

What happens to my HSA if I enroll in Medicare while I still have money in it?

The money stays in the account. You cannot add new contributions, but you can withdraw the existing balance tax-free for may have access to medical expenses. The account does not close and the money does not expire. You can use it for Medicare premiums, copays, and other medical costs for the rest of your life.

Can my spouse and I share one HSA in retirement?

No. Each person must have their own HSA account, even if you are married and file taxes jointly. If both spouses are HSA-may be able to access, each can open a separate account with its own contribution limit. The accounts are independent and cannot be merged.

If I am retired and withdraw HSA money for a non-medical expense, what happens?

After age 65, you owe income tax on the withdrawal but not the 20 percent penalty. Before age 65, you owe both income tax and the 20 percent penalty. This is one reason some retirees treat the HSA as a secondary retirement fund once they turn 65 — the penalty goes away, though the tax obligation remains.

Can I use my HSA to pay for Medicare supplemental insurance premiums?

Yes. Medicare supplemental (Medigap) premiums are a may have access to HSA expense. So are Medicare Part B and Part D premiums. Long-term care insurance premiums also count, with some limitations. Check your specific policy, but most insurance premiums related to medical care may have access to.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.