What Happens to Your HSA When You Die? Beneficiary Rules

Short answer: It depends entirely on who you named. Leave your HSA to your spouse, and it simply becomes their HSA — no tax, no deadline, business as usual (IRC §223(f)(8)(A)). Leave it to anyone else, and the account stops being an HSA the day you die: the entire balance is ordinary income to that person in that single year (IRC §223(f)(8)(B)). A $150,000 HSA left to your working-age daughter is $150,000 stacked on top of her salary on one tax return. There’s no 10-year stretch, no rollover, no escape hatch — which makes the beneficiary form on this account one of the most consequential you’ll ever sign.

Figures verified against IRC §223(f)(8) and §223(f)(4), and FTB Schedule CA (540) instructions, 2026. This is general information, not legal advice for your situation.

Three beneficiaries, three completely different outcomes

• Spouse: the account is treated as the surviving spouse’s own HSA from the date of death (IRC §223(f)(8)(A)). Nothing is included in anyone’s income. Your spouse keeps using it for qualified medical expenses, tax-free, for the rest of their life.
• Non-spouse (a child, sibling, friend, or a trust): the account ceases to be an HSA at death, and its fair market value is included in the beneficiary’s gross income for the year of death (IRC §223(f)(8)(B)). All of it. That year.
• Your estate (named, or no beneficiary at all): the value goes on your final income tax return instead — the Form 1040 your family files for the year you die. Sometimes that’s actually the better result, since a decedent’s final-year income can be low. See our guide to filing a deceased person’s final tax return.

One piece of genuinely good news: the 20% additional tax that punishes non-medical HSA withdrawals during life (IRC §223(f)(4)) does not apply after death — §223(f)(4)(B) switches it off at death or disability, and §223(f)(4)(C) at age 65. A non-spouse inherits ordinary income, not ordinary income plus a penalty.

The one-year medical-expense window

There is one meaningful reduction for a non-spouse beneficiary: the taxable amount drops by any of the decedent’s qualified medical expenses the beneficiary pays within one year after death (IRC §223(f)(8)(B)(ii)). If your father died after a long hospitalization with $40,000 in unpaid medical bills, and you pay them from the inherited balance within the year, that $40,000 comes off your taxable income. There’s also a §691(c)-style deduction if federal estate tax was attributable to the account — rarely relevant with a $15 million per-person exemption. Save every explanation of benefits and receipt; the window is short and the paperwork is the whole game.

What AI tools get wrong here

Two recurring errors. First, AI answers routinely blur HSAs into IRA rules — telling people a child can “stretch” an inherited HSA over 10 years. False: the 10-year rule is an IRA/401(k) concept (see the inherited IRA 10-year rule); an inherited HSA is taxed all at once, in the year of death. Second, chatbots warn about a “10% penalty” on inherited HSAs. There is no 10% HSA penalty at all — the HSA additional tax is 20% under §223(f)(4), and it doesn’t apply after death anyway.

California’s HSA quirk

California never conformed to the federal HSA rules. There’s no state deduction for HSA contributions, and — the part that catches people — the interest, dividends, and gains inside your HSA are taxable in California in the year earned, every year, while you’re alive (FTB Schedule CA (540) instructions). Your “triple-tax-free” account is only double-tax-free here, and many self-preparers miss the annual Schedule CA adjustment for years. This is squarely CPA territory: if you’ve never made the adjustment, or you’ve just inherited an HSA, have a tax preparer sort the state side. That’s not legal work, and Eric will refer you to a good CPA for free.

The planning moves that actually matter

• Name your spouse first. If you’re married, the spousal rollover is the only tax-free exit this account has. Naming anyone else first forfeits it.
• Spend the HSA late in life. Unlike an IRA, an HSA is worth more spent than inherited (unless your heir is your spouse). Use it for Medicare premiums, dental work, hearing aids, long-term-care costs — drain it on your own qualified expenses rather than leaving a pile of one-year ordinary income to a non-spouse.
• Think twice before leaving a big HSA to kids in their peak earning years. A $150,000 HSA landing on a 45-year-old’s return in her best income year gets taxed at her top marginal rate. If your kids are the only option, the estate-as-beneficiary route or accelerated lifetime spending may net the family more.
• Check the actual form. The HSA passes by beneficiary designation, not by your will or trust — the custodian pays whoever the form names, full stop. An outdated form beats a brand-new estate plan every time; here’s how beneficiary designations override wills.

What happens to an HSA when the owner dies?

If the spouse is the beneficiary, the account becomes the spouse’s own HSA with no tax (IRC §223(f)(8)(A)). If anyone else is the beneficiary, the account stops being an HSA and its full value is ordinary income to that person in the year of death (IRC §223(f)(8)(B)). If the estate is the beneficiary, the value goes on the decedent’s final 1040.

Do you pay taxes on an inherited HSA?

A spouse doesn’t — the rollover is tax-free. Anyone else pays ordinary income tax on the entire balance in the year of death, reduced by any of the decedent’s medical bills the beneficiary pays within one year after death. There’s no penalty on top, just the income tax.

Can a child stretch an inherited HSA over 10 years?

No. The 10-year rule applies to inherited IRAs and 401(k)s, not HSAs. A non-spouse inherits the whole HSA as taxable income in a single year — there is no stretch, no rollover to their own HSA, and no way to leave it growing tax-free.

Does the 20% HSA penalty apply after death?

No. The 20% additional tax on non-qualified distributions (IRC §223(f)(4)) does not apply to amounts paid after the account owner’s death or disability, or after age 65. Post-death, a non-spouse beneficiary owes ordinary income tax only.

Does California tax HSA accounts?

Yes, in its own way. California doesn’t recognize HSAs: contributions aren’t deductible on the state return, and the account’s earnings are taxable to California each year as earned. The federal tax-free treatment doesn’t change, but Californians must add HSA earnings back on Schedule CA (540) annually — a detail worth handing to a CPA.

Should I name my trust as my HSA beneficiary?

Usually not, if you’re married — a trust can’t do the spousal rollover, so routing the HSA through a trust converts a tax-free transfer into immediate ordinary income. For unmarried owners the trust-versus-individual question turns on your whole plan. It’s exactly the kind of beneficiary-form decision worth coordinating with the rest of your estate plan rather than guessing at the bank branch.

The bottom line

The HSA is the account where inheritance rules flip the usual logic: wonderful to own, fine to leave a spouse, genuinely poor to leave anyone else. The whole outcome turns on a one-page beneficiary form and a spend-down strategy in your later years — cheap fixes, made while you’re alive. If you’re updating your estate plan, bring the HSA beneficiary form to the table with everything else, and Talk to Eric about making the designations match the plan. The California tax adjustments and the year-of-death return are your CPA’s lane, and he’ll happily send you to one.

Sources: IRC §223(f)(8)(A) (spouse: HSA becomes the survivor’s own); §223(f)(8)(B) (non-spouse: account ceases to be an HSA; FMV in beneficiary’s gross income; estate beneficiary → decedent’s final return); §223(f)(8)(B)(ii) (reduction for decedent’s medical expenses paid within 1 year); IRC §691(c) (deduction for estate tax attributable); IRC §223(f)(4), (f)(4)(B)–(C) (20% additional tax; off after death/disability/65); FTB Schedule CA (540) instructions (California nonconformity: no HSA deduction, earnings taxed annually); IRC §2010(c) as amended by OBBBA, P.L. 119-21 ($15,000,000 exemption, permanent).