Inheriting an HSA: The Tax Rules Non-Spouse Beneficiaries Must Know (2026)

What Happens to an HSA When the Owner Dies

HSA death rules are governed by IRC § 223(f)(8), which creates a clean two-track system based on one question: is the designated beneficiary the decedent's spouse?¹

• Spouse as beneficiary: The HSA is treated as if it always belonged to the surviving spouse. The account continues as an HSA with all tax protections intact. No taxable event.
• Anyone else as beneficiary: The HSA ceases to be an HSA on the date of death. The fair market value of the account on that date is included in the beneficiary's gross income for the year of death. Full stop.

There is no 10-year rule for inherited HSAs, no life expectancy stretch, and no rollover option for non-spouse beneficiaries. Unlike inherited IRAs, you cannot defer the tax. The income inclusion is immediate — it happens in the tax year the account owner died, regardless of when the custodian distributes the funds.

Spouse Beneficiary: The HSA Survives Intact

When a surviving spouse is the designated beneficiary, IRC § 223(f)(8)(A) provides that the HSA is treated as belonging to the surviving spouse from the date of death.¹ No distribution occurs. No taxable event. The account simply becomes the surviving spouse's own HSA.

The surviving spouse can continue to:

• Use the funds for qualified medical expenses tax-free
• Make additional contributions if they remain enrolled in a qualifying High-Deductible Health Plan (HDHP) — up to $8,750 for family coverage or $4,400 for self-only in 2026⁴
• Invest the balance and allow it to grow tax-free
• Name a new beneficiary for the account going forward

Non-Spouse Beneficiary: Full Income Tax on the Balance

For everyone other than a surviving spouse — adult children, siblings, parents, domestic partners, trusts, charities — IRC § 223(f)(8)(B) ends the HSA immediately.¹ The fair market value of the HSA as of the date of death is included in the beneficiary's gross income in the year the owner died.

This income is taxed as ordinary income at the beneficiary's marginal rate — there is no preferential capital gains treatment. At the top 2026 bracket of 37%, a $100,000 HSA generates a $37,000 tax bill for the beneficiary.

How it is reported

The HSA custodian will issue a Form 1099-SA to the beneficiary reporting the death distribution (typically coded as distribution code 4). The full amount is included in the beneficiary's gross income. You do not file a Form 8889 for this inherited HSA — that form is for HSA account owners. The income is reported on your Form 1040, Schedule 1 as other income, reduced by any qualifying medical expense deduction (see below).

No step-up in basis

Unlike inherited stocks or real estate, HSAs get no step-up in cost basis at death. All contributions to the HSA were made pre-tax (or were deductible), so the entire balance is income in respect of a decedent (IRD) — taxable when received by the beneficiary, with no adjustment for the decedent's basis. This is similar to inherited traditional IRA distributions, not inherited brokerage accounts.

The Medical Expense Exception: Reducing the Tax Hit

IRC § 223(f)(8)(B)(ii) provides one meaningful way to reduce the income tax owed on an inherited HSA: the non-spouse beneficiary can reduce the taxable amount by any qualified medical expenses of the decedent that are:¹

1. Incurred by the decedent before the date of death, AND
2. Paid by the beneficiary within one year after the decedent's death

In plain terms: if you pay any of your parent's outstanding medical bills using funds from the inherited HSA distribution (or out of pocket and then seek reimbursement), those payments reduce what you owe income tax on.

What qualifies as a deductible medical expense

The same definition of qualified medical expenses applies as for regular HSA use: expenses for medical care as defined in IRC § 213(d) that were not previously reimbursed by insurance and were not used as a deduction on the decedent's final tax return. Common examples include:

• Unpaid hospital, physician, and specialist bills
• Prescription drugs the decedent purchased but for which the HSA was not yet used
• Long-term care expenses not covered by insurance
• Dental and vision care
• Medical equipment and home health care costs

Funeral expenses, health insurance premiums (in most cases), and expenses reimbursed by the decedent's insurance are not qualified and cannot reduce the taxable amount.

The IRD deduction

If the decedent's estate was large enough to owe federal estate tax — above $15 million in 2026 under the OBBBA⁵ — the HSA balance was included in the taxable estate. In that case, IRC § 691(c) allows the beneficiary to take an itemized deduction for the portion of federal estate tax attributable to the HSA distribution. This deduction partially offsets the double-taxation effect (estate tax paid by the estate plus income tax paid by the beneficiary on the same dollars). This applies to very few estates given the $15M threshold but is worth flagging to an advisor in large estates.

When the Estate Is Named as Beneficiary

If the HSA owner named their estate as beneficiary — or failed to name any beneficiary and the account defaults to the estate under the custodian's plan document — the income inclusion shifts to the decedent's final income tax return rather than the beneficiary's return.²

The FMV of the HSA is included in the decedent's gross income for their final tax year, reported on the estate's Form 1041 or on the decedent's final Form 1040, depending on timing. The actual cash then passes to the estate's beneficiaries through the normal probate or trust distribution process — but the income tax liability was already incurred at the estate level.

Why This Matters More Than Most People Expect

HSAs were introduced in 2003. Workers who opened accounts then and invested rather than spending them down have had more than two decades of triple-tax-advantaged compounding. Contribution limits have risen steadily — the 2026 limits are $4,400 for self-only coverage and $8,750 for family coverage, with a $1,000 catch-up for those 55 and older not enrolled in Medicare.⁴

A worker who maxed family HSA contributions from 2003 through 2026 and invested them at market rates could have an account worth $250,000 to $400,000 or more. Unlike an IRA, there is no required minimum distribution rule to force drawdowns — a disciplined saver can accumulate an HSA indefinitely if they pay medical expenses out of pocket. The IRS has called this a "too successful" outcome, and the death rules reflect that tension.

For beneficiaries, the surprise often comes not from a small account but from a parent who was proud of their frugal health spending: a $200,000 HSA left to three adult children means each inherits roughly $66,700 of ordinary income — plus whatever other assets they receive that year. That income can push beneficiaries into higher brackets, affect ACA subsidy eligibility, and trigger IRMAA surcharges on Medicare premiums if the beneficiary is over 63.

What to Do When You Inherit an HSA

Step 1: Contact the HSA custodian immediately

The HSA custodian (typically a bank or brokerage that held the account) needs to be notified of the owner's death. Have the death certificate ready. If you are a spouse beneficiary, request the beneficiary transfer paperwork. If you are a non-spouse beneficiary, the custodian will initiate a distribution.

Step 2: Gather the decedent's unpaid medical bills

Before the HSA distribution is finalized, identify any qualified medical expenses the decedent incurred but did not pay before death. This is your window to reduce the taxable amount. Collect Explanation of Benefits statements, medical bills, and prescription receipts. Pay these bills within 12 months of the date of death.

Step 3: Request an itemized accounting of medical expenses from insurers

Insurance carriers can provide an itemized list of claims paid and patient-responsibility amounts for the decedent's final year. This documentation supports your medical expense reduction calculation.

Step 4: Report the income correctly

The HSA custodian will issue a Form 1099-SA. The taxable amount after the medical expense reduction is reported as ordinary income on your Form 1040 for the year of the account owner's death. Work with a tax professional to ensure the medical expense offset is properly calculated and documented.

Step 5: Anticipate the tax cash flow

If the inherited amount is significant, you may need to make a federal estimated tax payment to avoid underpayment penalties, since HSA income typically isn't withheld. The quarterly estimated tax deadline for Q4 is January 15 of the following year (for income in the prior calendar year). Consult a CPA if the inherited HSA amount is over $10,000.

If You Have an HSA: Protecting Your Own Heirs

If you have a growing HSA and want to minimize the tax burden on your own beneficiaries, several strategies are worth discussing with a financial planner:

Name your spouse as primary beneficiary

This is the single most impactful step. A spouse inherits with zero tax consequences. If you are married, confirming your spouse is the named beneficiary on your HSA beneficiary designation form costs nothing and can save your heirs tens of thousands of dollars.

Draw down the HSA in later years rather than hoarding it

If you are in a low tax bracket in early retirement (before Social Security, before RMDs), spending your HSA on medical expenses rather than out-of-pocket funds reduces the balance your non-spouse heirs will inherit. The HSA's tax-free-withdrawal benefit is most valuable when you use it — and it eliminates the tax trap for beneficiaries dollar by dollar.

Use the HSA for large medical expenses late in life

Long-term care, significant hospital stays, and end-of-life expenses are often the largest medical expenses of a lifetime. An HSA used to pay these costs — which are fully qualified expenses — serves its intended purpose and reduces what heirs would otherwise face as taxable income. A $60,000 long-term care facility payment from the HSA eliminates that amount from an heir's income inclusion entirely.

Consider naming a charity as HSA beneficiary (for non-spouse estates)

Tax-exempt charities do not pay income tax on HSA distributions. If you have a substantial HSA and no surviving spouse, naming a charity as beneficiary (partially or fully) eliminates the income tax that adult children would otherwise owe. You can coordinate this with other estate planning — e.g., leaving highly appreciated taxable assets to children (who get step-up in basis) and directing the HSA to charity (which pays no tax on the IRD). See our charitable giving from inheritance guide for related strategies.

Coordinate with your estate plan

Your will and trust documents do not override HSA beneficiary designations. The HSA passes directly to whoever is named on the beneficiary form — independent of your estate plan. Review and update the beneficiary designation form directly with the HSA custodian, especially after marriage, divorce, or the death of a named beneficiary.

When to Involve a Specialist

For a small HSA where you are the surviving spouse, the path is simple and no professional assistance is required. These situations add complexity worth a professional review:

• You're a non-spouse beneficiary with a significant HSA balance. Correctly calculating the medical expense exception, timing estimated tax payments, and coordinating the income with other inherited assets (an IRA, a brokerage, real estate) in the same tax year can meaningfully affect your total tax bill.
• The inherited HSA income will affect your ACA health insurance premiums. HSA distributions count as income for ACA subsidy calculations. A large inherited HSA can eliminate a premium tax credit for the year — worth knowing before you file.
• The decedent had significant outstanding medical bills. Maximizing the medical expense exception requires documentation, timing, and coordination with the custodian. A tax professional or financial planner can help ensure you don't leave deductible expenses unclaimed.
• You also inherited traditional IRAs, 401(k)s, or other accounts. Receiving HSA income plus inherited IRA distributions in the same year can push you through multiple bracket thresholds. An advisor can sequence distributions and offset strategies across all inherited accounts. See our inherited IRA guide and inherited 401(k) guide for context.
• You have your own HSA and want to review your beneficiary designations. A fee-only financial planner can review your HSA beneficiary form in the context of your overall estate plan and identify the approach that minimizes taxes across your heirs.