Can You Use Your FSA or HSA for a Spouse or Parent? What the IRS Rules Actually Allow

Short answer: yes — you can spend your FSA or HSA dollars on eligible expenses for your spouse and your tax dependents, and a parent counts if they qualify as your dependent. The money in your account isn't just for you. The IRS lets it cover "qualified medical expenses" for your spouse and dependents too, even if they're not enrolled in your health plan. That matters a lot if you're the one keeping an eye on a parent's arthritis or a spouse's back pain — because it means the FSA/HSA-eligible wellness tools you'd buy for yourself, including red light therapy devices, can often be bought for them with pre-tax money.

Here's how the rules actually work, in plain English, and where the lines are.

Can I use my FSA or HSA to pay for my spouse's expenses?

Yes. Qualified medical expenses for your spouse are treated the same as your own, whether the money comes from a health FSA or an HSA. According to IRS Publication 969, qualified medical expenses include amounts paid for you, your spouse, and your dependents. Your spouse does not need to be covered by your health insurance plan for this to apply — the accounts and the insurance are separate questions.

So if your spouse deals with knee pain and you've been thinking about a red light therapy belt for them, that purchase generally sits in the same eligibility bucket as buying one for yourself.

Can I use my FSA or HSA for my parents?

Only if they qualify as your dependent — but the definition is more generous than most people expect. A parent doesn't need to live with you or be claimed on your tax return in every case. Broadly, if you provide more than half of your parent's financial support for the year, their medical expenses may count as yours for FSA/HSA purposes even when other tax tests (like the gross income test) keep you from claiming them as a dependent on your return. IRS Publication 502 spells out these dependent rules in detail.

The practical takeaway: if you're genuinely supporting a parent — paying for their housing, food, care, or medical needs — talk to a tax professional before assuming you can't use your account for them. Many adult children caring for aging parents can.

If they don't qualify as your dependent, you can still buy them a device as a regular gift — you just can't run it through your FSA or HSA. Our gift guide covers that path.

What about adult children?

This is where FSAs and HSAs split, and it trips people up.

• Health FSA: you can generally use FSA funds for your children through the end of the calendar year they turn 26, whether or not they're your tax dependents — the same age rule that lets them stay on your health plan.
• HSA: stricter. HSA funds can only cover a child who is actually your tax dependent. An adult child on your insurance plan who files their own taxes and supports themselves usually doesn't qualify, even though your insurance covers them.

If you have both account types, that difference can decide which card you reach for.

Is red light therapy an eligible expense in the first place?

Many red light therapy devices are FSA/HSA eligible, sometimes with a Letter of Medical Necessity (LMN) depending on your plan administrator. Every device at American Wellness Authority is sold as FSA/HSA eligible, and we've written a full walkthrough of how to pay with your FSA or HSA card, including what to do if your administrator asks for an LMN.

On the evidence side: red light therapy (photobiomodulation) has been studied as an adjunct for pain and recovery, not a cure. A 2026 systematic review of randomized clinical trials looked at photobiomodulation for chronic pain across conditions like fibromyalgia, neuropathy, and musculoskeletal pain, and most included trials reported meaningful pain reduction compared with sham or usual care — while noting that protocols vary and more standardized research is still needed. That honest framing is worth keeping in mind whoever the device is for.

Which device makes sense for the person you're buying for?

Match the device to their daily reality, not the spec sheet:

• A spouse or parent with knee, back, or shoulder pain: the Red Light Therapy Belt ($119.99) wraps where it hurts and is simple to use.
• A parent with foot or heel pain: the Red Light Therapy Slippers ($199.99) need no positioning at all — put them on, press a button.
• Someone who wants one flexible device: the FX300 panel ($199.99) is compact, targeted, and covers the widest range of uses for the price.

Not sure? The device finder quiz takes about a minute and narrows it down based on the person's main concern.

What records should I keep?

Keep the receipt, note who the purchase was for, and hold onto any Letter of Medical Necessity. FSA administrators sometimes ask for substantiation months later, and for HSAs you're your own record-keeper in case of an IRS question. If the purchase was for a parent, it's also smart to keep simple notes showing you provide more than half their support — bank statements or a summary is usually enough for your tax preparer to work with.

Frequently asked questions

Can I use my FSA for my spouse if they have their own insurance?

Yes. Your spouse's eligible expenses qualify regardless of whose insurance covers them — or whether they have insurance at all.

Can I use my HSA for my mom or dad?

Only if they qualify as your dependent, which usually means you provide more than half of their financial support for the year. Check IRS Publication 502 or ask a tax professional about your specific situation.

Can I use my FSA or HSA for a domestic partner?

Generally no, unless your partner qualifies as your tax dependent. Unlike spouses, domestic partners aren't automatically covered by the IRS rules.

Can my spouse use their own FSA card to buy a device for me?

Yes — the rule works in both directions. Either spouse's account can pay for the other's eligible expenses.

Do I need a Letter of Medical Necessity to buy red light therapy for a family member?

It depends on your plan administrator. Some approve red light therapy devices outright; others ask for an LMN tied to the person who'll use the device. Our FSA/HSA guide explains how to get one online in a few minutes.

What happens if I use FSA/HSA money for someone who doesn't qualify?

For an HSA, the amount becomes taxable income and may carry a 20% penalty. For an FSA, your administrator can deny or claw back the reimbursement. When in doubt, confirm dependent status first — it's a five-minute conversation with a tax preparer.

Caring for the people you love shouldn't cost more than it has to. If someone in your family could use a little relief, your pre-tax dollars may already have it covered. Lights on, pain off.

This article is for general education and is not medical advice. Red light therapy devices are intended for general wellness and are not intended to diagnose, treat, cure, or prevent any disease. Always check with a qualified healthcare provider before starting a new therapy.