Yes, you can use your HSA for someone else’s medical expenses, but only for a defined group: your spouse, anyone who counts as your tax dependent, and certain people you could have claimed as a dependent except for their income, their filing status, or the fact that you yourself could be claimed on someone else’s return. The account stays in your name, but federal law lets the money follow the relationship, not the insurance card.
Your Spouse
A spouse’s medical bills are always qualified, regardless of whose insurance covers them. It does not matter whether your spouse is on your High Deductible Health Plan, carries a separate policy, or has no coverage at all.1Internal Revenue Service. Distributions for Qualified Medical Expenses The IRS treats your spouse’s expenses exactly like your own for reimbursement.2Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans – Section: Qualified Medical Expenses Common-law marriages recognized by your state also qualify.
This is what makes the HSA useful for split-coverage households. You can contribute based on your own HDHP enrollment and still pull from the account to cover your spouse’s doctor visits, prescriptions, or dental work under a completely different plan.
Children and Other Dependents
Anyone who meets the federal definition of your dependent qualifies. The tax code splits dependents into qualifying children and qualifying relatives, and each has its own tests.3Office of the Law Revision Counsel. 26 USC 152 – Dependent Defined
Qualifying Children
A qualifying child lives with you for more than half the year, does not provide more than half of their own support, and is under 19 at year-end. Full-time students get an extension to age 24. A permanently and totally disabled child qualifies at any age.4Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information – Section: Age Test The child generally cannot file a joint return with a spouse.
Qualifying Relatives
A qualifying relative is someone who depends on you financially but does not meet the qualifying child rules. You must provide more than half of the person’s total support for the year. The person must also be a listed relative — parent, grandparent, sibling, stepparent, aunt, uncle, niece, nephew, or certain in-laws — or, if not on that list, must live in your home the entire year as a member of your household.3Office of the Law Revision Counsel. 26 USC 152 – Dependent Defined Listed relatives do not need to live with you.
The Broader “Could Have Claimed” Rule
The HSA definition of dependent is wider than the standard tax definition. You can also spend from the account for someone you could have claimed except that the person filed a joint return, had too much gross income, or you yourself could be claimed on someone else’s return.2Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans – Section: Qualified Medical Expenses In plain terms, if the only reason a relative fails the dependency test is that they earn too much, you can still use your HSA for their medical bills. The relationship and support tests still apply.5Legal Information Institute. 26 USC 223(d)(2)(A) – Definition: Qualified Medical Expenses
Adult Children Still on Your Insurance
Federal law lets children stay on a parent’s health plan until age 26.6eCFR. 45 CFR 147.120 – Applicability of State Requirements The IRS uses different, younger cutoffs for tax dependency, and this mismatch trips people up.
A child generally stops being your qualifying child at 19, or at 24 if they’re a full-time student.4Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information – Section: Age Test A 23-year-old who has graduated and works full time is probably not your tax dependent even though they’re still on your insurance. Using HSA funds for that child’s care would be a non-qualified distribution.
An adult child who ages out can still qualify as a qualifying relative, but the support test gets in the way. You must provide more than half of their total support. A working adult child earning their own living usually fails that test, and the “could have claimed” exception only helps if income is the sole disqualifier.
Parents and Other Older Relatives
Parents are the most common situation where the wider HSA dependency rule pays off. A parent is a listed relative, so they do not have to live with you.3Office of the Law Revision Counsel. 26 USC 152 – Dependent Defined The question is whether you provide more than half of the parent’s total support, counting housing, food, medical care, clothing, and transportation.
If Social Security or a small pension puts your parent’s gross income above the normal dependency threshold, HSA rules waive that test. As long as you meet the support and relationship tests, distributions for the parent’s medical care are tax-free.2Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans – Section: Qualified Medical Expenses
One boundary matters here. You can use HSA funds to pay Medicare premiums for a spouse or dependent only if you, the account holder, are 65 or older. If you’re younger than 65, Medicare premiums for an older parent generally are not qualified expenses.7Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans Prescriptions, doctor visits, and hospital bills for that parent remain fully eligible.
Children of Divorced or Separated Parents
Children of divorced or separated parents get special treatment. Both parents can use HSA funds for the child’s medical expenses, even if only one parent claims the child as a tax dependent.8Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses Three conditions must be met:
- The child is in the custody of one or both parents for more than half the year.
- The parents together provide more than half of the child’s support.
- The parents are divorced, legally separated, separated under a written agreement, or lived apart for the last six months of the year.
The rule applies regardless of which parent signed Form 8332 releasing the dependency exemption. Publication 969 confirms that a child in this situation is treated as the dependent of both parents for HSA purposes.2Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans – Section: Qualified Medical Expenses
Domestic Partners
Domestic partners and civil union partners who are not legally married face a harder path. The IRS does not treat registered domestic partners as spouses for federal tax purposes.9Internal Revenue Service. Answers to Frequently Asked Questions for Registered Domestic Partners and Individuals in Civil Unions Sharing an insurance policy does not change that.
Your partner must independently qualify as your dependent under the qualifying relative rules. Since a partner is not on the list of specified relatives, they must live with you the entire year as a member of your household, and you must provide more than half of their total support. If your partner earns their own living, they will not qualify. The IRS has also noted that if a partner’s support comes entirely from community funds, the partner is treated as having provided half of their own support and cannot be claimed.9Internal Revenue Service. Answers to Frequently Asked Questions for Registered Domestic Partners and Individuals in Civil Unions
What Happens if You Pay for the Wrong Person
Using HSA money for someone who doesn’t qualify creates a non-qualified distribution. The amount gets added to your taxable income for the year, and you owe an extra 20% penalty on top of income tax.10Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans – Section: Distributions From an HSA On a $1,000 wrong-person distribution, that’s $200 in penalty plus whatever your marginal rate adds.
The 20% penalty disappears once you turn 65, become disabled, or upon death. After 65, non-qualified distributions are still taxed as ordinary income but carry no penalty.10Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans – Section: Distributions From an HSA
If you took a distribution by mistake because of a factual error with reasonable cause, you can repay the funds. The deadline is April 15 following the first year you knew or should have known the distribution was a mistake.11Internal Revenue Service. Mistaken Distributions Repaying in time avoids both the income tax and the 20% penalty. It won’t rescue you if you knowingly paid a non-qualifying person’s bill.
Records You Need to Keep
The IRS does not ask for receipts at filing time, but you’re expected to have them if questioned. You must be able to show three things: the distribution paid a qualified medical expense, the expense wasn’t reimbursed from another source, and you didn’t already take it as an itemized deduction.7Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans
When the money went toward someone other than you, keep documentation of the relationship too: proof that the person qualified as your spouse, dependent, or someone you could have claimed at the time. For dependents, that usually means evidence of the support you provided and, where required, proof of shared residence. If the IRS questions a distribution years later, the burden of proving eligibility is on you.