When you die, your health savings account passes to whoever you named as the beneficiary, and the tax result depends entirely on who that person is. A surviving spouse takes over the account tax-free and keeps it as their own HSA. Anyone else owes ordinary income tax on the full value of the account in the year you die. If you never named a beneficiary, the account falls to your estate, which is the worst outcome of the three.
If Your Spouse Is the Beneficiary
A surviving spouse named as the beneficiary gets the best possible treatment. Federal law treats the HSA as if the spouse had owned it all along, so the transfer is completely tax-free and the account keeps its full tax-advantaged status.1Office of the Law Revision Counsel. 26 USC 223 – Health Savings Accounts The spouse becomes the new account holder rather than a beneficiary receiving a distribution, which is why the custodian issues no Form 1099-SA for the transfer.2Internal Revenue Service. Instructions for Forms 1099-SA and 5498-SA
Once ownership passes, all the ordinary HSA rules apply to the spouse. Withdrawals for qualified medical expenses remain tax-free. If the spouse is enrolled in an HSA-eligible high-deductible health plan, they can keep contributing up to the annual limit. For 2026, those limits are $4,400 for self-only coverage and $8,750 for family coverage, with an additional $1,000 catch-up contribution at age 55 or older.3Internal Revenue Service. Revenue Procedure 2025-19 Even without an HDHP, the balance stays in the account and can be spent tax-free on medical costs at any time.
To claim the account, the spouse gives the custodian a certified death certificate and completes the custodian’s beneficiary claim form to assume ownership. The critical point is that this treatment depends on the spouse being the named beneficiary on the account itself. If the designation lists someone else, being married to the deceased is not enough to claim the tax-free transfer.
If Anyone Else Is the Beneficiary
When a non-spouse inherits an HSA, the account stops being an HSA on the date of death. The entire fair market value on that date becomes taxable income to the beneficiary in the year the owner died.4Internal Revenue Service. Publication 969 – Health Savings Accounts and Other Tax-Favored Health Plans There is no option to stretch the payout, roll the funds into the beneficiary’s own HSA, or defer the tax. The full amount lands on one tax return, at the beneficiary’s ordinary income rate, which can push a sizable HSA balance into a higher bracket.
The custodian reports the fair market value in box 4 of Form 1099-SA and sends it to both the beneficiary and the IRS.2Internal Revenue Service. Instructions for Forms 1099-SA and 5498-SA The one small piece of relief: the distribution is not subject to the 20% additional tax that normally applies when HSA funds are used for non-medical purposes.4Internal Revenue Service. Publication 969 – Health Savings Accounts and Other Tax-Favored Health Plans
The One-Year Medical Expense Offset
A non-spouse beneficiary can shrink the taxable amount by paying the deceased owner’s outstanding qualified medical expenses within one year after the date of death.1Office of the Law Revision Counsel. 26 USC 223 – Health Savings Accounts Only expenses the decedent incurred before death qualify. If the owner left $8,000 in unpaid hospital bills and the beneficiary settles them from the inherited funds within twelve months, that $8,000 is subtracted from the taxable balance. Keep every receipt and explanation of benefits, because the IRS will want documentation if the return is questioned.
Estate Tax Deduction
If the deceased owner’s estate was large enough to owe federal estate tax, a non-spouse beneficiary may be able to claim a deduction for the portion of estate tax attributable to the HSA balance. This is the income in respect of a decedent (IRD) deduction under Section 691(c), and it prevents the same dollars from being taxed twice.5Office of the Law Revision Counsel. 26 USC 691 – Recipients of Income in Respect of Decedents The HSA statute specifically extends the deduction to HSA beneficiaries.1Office of the Law Revision Counsel. 26 USC 223 – Health Savings Accounts In practice it only matters for estates that exceed the federal estate tax exemption, but when it applies the savings can be significant.
Post-Death Earnings
Any investment gains, interest, or dividends the account earns after the date of death are also taxable to the beneficiary. These post-death earnings sit on top of the date-of-death fair market value and get reported in the year received.6Internal Revenue Service. Instructions for Form 8889 If the custodian takes months to process the claim and the account is holding mutual funds or earning interest during that time, those gains land on the beneficiary’s return.
If No Beneficiary Is Named
If no beneficiary was ever named, or if every named beneficiary died before the owner, the HSA defaults to the owner’s estate. The fair market value of the account is then included on the deceased owner’s final income tax return rather than on a beneficiary’s return.6Internal Revenue Service. Instructions for Form 8889 The executor files the final Form 1040 and reports the HSA balance there.
This is worse than the non-spouse outcome in two ways. First, the estate cannot use the one-year medical expense offset to reduce the taxable amount; that relief is limited to beneficiaries other than the estate.4Internal Revenue Service. Publication 969 – Health Savings Accounts and Other Tax-Favored Health Plans Second, because the funds belong to the estate, they pass through probate, which means delays, court costs, and executor fees before the money reaches anyone.
Whatever remains after taxes and administration goes out according to the owner’s will or, if there is no will, the state’s default inheritance rules. Those default rules may not match what the owner would have chosen. Naming a beneficiary directly on the HSA avoids all of this.
What About Naming a Trust
Some owners name a revocable living trust as the HSA beneficiary as part of a broader estate plan. A trust is not a spouse, so it gets the same treatment as any other non-spouse beneficiary: the account stops being an HSA on the date of death and the full fair market value becomes taxable income.4Internal Revenue Service. Publication 969 – Health Savings Accounts and Other Tax-Favored Health Plans The trust either pays the tax itself or passes the income through to its beneficiaries, depending on how it is drafted.
Because an inherited HSA is taxed in full right away, the trust structure usually adds complexity without much benefit. Naming individuals directly is simpler and produces the same tax outcome. The exception is when the owner needs the distribution controls a trust provides, such as managing funds for a minor or a beneficiary with special needs.
How Beneficiaries Actually Claim the Account
Whoever inherits the account starts by contacting the HSA custodian with a certified copy of the death certificate. The custodian freezes the account and sends the beneficiary a claim form. Expect to provide a Social Security number or a completed Form W-9 so the custodian has a taxpayer identification number for IRS reporting.7Internal Revenue Service. Instructions for the Requester of Form W-9
A surviving spouse uses the claim form to elect ownership, which triggers the tax-free transfer. A non-spouse beneficiary uses it to request a lump-sum distribution, since there is no option to keep the money in a tax-advantaged account. The full balance is distributed and reported on Form 1099-SA.
Do not try to use the account’s debit card, move money online, or withdraw funds before the custodian has processed the death claim. Transactions taken before the claim is finalized can create reporting errors that are tedious to unwind with the IRS. Most claims are processed within a few weeks of the custodian receiving all required documents, though invested balances that need to be liquidated can take longer.
Keep Your Beneficiary Designation Current
The most important thing you can do for the people who will inherit your HSA is name them, in writing, with the custodian. An HSA beneficiary designation is filed directly with the custodian, separate from your will, and the designation on file controls even if your will says something different. Marriage, divorce, the birth of a child, or the death of a beneficiary can all make an old form wrong.
If your spouse is your intended beneficiary, make sure the designation says so explicitly. A married account holder who never filled out the form may assume the spouse inherits automatically, but that depends on the custodian’s default rules and on state law. Some custodians default to the estate when no beneficiary is named, which means probate and the least favorable tax result. Filling out the form takes a few minutes and can save your family thousands in taxes and legal fees.