Children and grandchildren who inherit a health savings account can face an income tax bill equal to the account’s full value when the owner dies, a rule that is getting more attention as Americans build larger HSA balances for retirement. Under IRS Publication 969, the tax break that makes HSAs attractive during life can disappear for non-spouse beneficiaries, turning what looks like family wealth into taxable income.
How the rules work
HSAs offer a rare triple tax advantage. Contributions are deductible or pre-tax, growth is tax-free, and withdrawals are tax-free when they pay qualified medical expenses. That structure has made the accounts a popular long-term savings tool, especially for workers in high-deductible health plans.
The inheritance rules are much less generous. If a spouse is the beneficiary, the spouse can usually treat the inherited account as their own HSA. If the beneficiary is not a spouse, the account stops being an HSA on the date of death, and the fair market value becomes taxable to the recipient in the year the money is received, according to the IRS.
That distinction matters because beneficiary designations control the payout. A will can leave money to a child, but it does not override the beneficiary form on the HSA. Estate planners say that mismatch is one of the most common reasons families are surprised by the tax bill.
Why the risk is growing
The problem is more relevant now because HSA balances have become larger and more central to retirement planning. Many account holders no longer use HSAs only for current copays and prescriptions. They invest the money and let it compound, hoping it will help cover medical costs later in life.
That approach is rational. Fidelity estimated in 2024 that a 65-year-old couple retiring that year may need about $165,000 for health care expenses in retirement, a figure that helps explain why households are letting HSA balances accumulate. But the larger the balance, the larger the potential tax hit for heirs who do not qualify as spouses.
The tax code also treats HSAs differently from other retirement accounts in a way many families miss. An inherited IRA may still allow some tax-deferred treatment, but a non-spouse inherited HSA usually does not keep that status. In practice, that means the account can shift from a planning asset to a taxable event almost immediately after death.
What heirs can do with the account
There is one important offset. Non-spouse beneficiaries may be able to use inherited HSA funds to pay the decedent’s qualified medical expenses that were incurred before death, if the expenses are paid within one year after death. In that case, the amount used for those expenses can escape income tax.
That rule gives families a short window to document bills and file claims. But it does not change the core outcome for most heirs. Any remaining balance generally becomes taxable income, and a large account can create an unexpected bump in the beneficiary’s tax return for the year.
Tax professionals say the practical challenge is timing. Families often learn about the rule only after the account holder dies, when there is little room to redesign the plan. That is why advisers urge HSA owners to review beneficiary forms with the same care they give to life insurance and retirement accounts.
What readers should watch next
The main takeaway is simple: an HSA is not just a savings account with a tax benefit, it is a tax-sensitive asset that needs estate planning. Owners who want to protect children or grandchildren should confirm who is listed as beneficiary, check whether the spouse is the primary heir, and coordinate HSA instructions with the rest of the estate documents.
Heirs should also move quickly if the account holder had unpaid medical bills, since that is one of the few paths to reduce the tax cost. As HSA balances continue to rise, the gap between how people use the accounts during life and how heirs are taxed after death is likely to draw more scrutiny from advisers and policymakers, especially if more families start discovering the bill only after probate begins.
