Dying with a health savings account can leave a tax bomb for heirs

May 10, 2026 - 04:47

A health savings account, or HSA, is often praised as a triple tax-advantaged tool for medical expenses. Contributions are tax-deductible, the money grows tax-free, and withdrawals for qualified health costs are not taxed. But that advantage can turn into a nasty surprise for the people who inherit it.

If you leave an HSA to a non-spouse beneficiary, such as a child or grandchild, the account loses its tax-sheltered status on the day you die. The entire fair market value of the account becomes taxable income to the heir in the year of your death. There is no step-up in basis like there is for inherited stocks or real estate. Instead, the beneficiary must report the full amount as ordinary income on their tax return.

This can create a significant tax bill, especially if the HSA balance is large. For example, a $100,000 HSA inherited by an adult child in a high tax bracket could trigger a federal tax liability of $30,000 or more, depending on their other income. State taxes may add to the burden.

The rules are different for a surviving spouse. A spouse can simply treat the inherited HSA as their own, keeping the tax benefits intact. They can continue using the funds for qualified medical expenses without any immediate tax hit. But for everyone else, the clock starts ticking. The heir must take the money out, and the IRS expects its share.

Financial planners suggest that account owners plan ahead. One option is to spend down the HSA during retirement for medical costs, leaving less for heirs. Another is to name a charity as a beneficiary, since charities are tax-exempt and avoid the income tax. Some people also consider converting the HSA into other assets before death, though that can be complicated.

The key takeaway is simple: an HSA is a powerful savings tool, but its tax advantages vanish for non-spouse heirs. Without planning, a generous inheritance can become a costly tax surprise.