What makes an expense eligible?

An expense is HSA or FSA eligible if it's primarily for the "diagnosis, cure, mitigation, treatment, or prevention of disease" as defined in IRS Publication 502. Cosmetic procedures that don't treat a medical condition are generally not eligible. General health and wellness without a specific medical purpose usually isn't either — with some notable exceptions.

2026 update: The CARES Act permanently expanded eligibility to include over-the-counter medications without a prescription, menstrual care products, and certain telehealth services. These are now fully eligible without any extra documentation.

The big categories

✅ Medical care (always eligible)

✅ Over-the-counter medications (no prescription needed since 2020)

✅ Preventive care and wellness (mostly eligible)

Not sure if something qualifies?

Type any expense into BenefAgent and get an instant answer with the IRS citation — in seconds.

Check an expense free →

The expenses most people don't know are eligible

ExpenseEligible?Notes
Therapy / mental health counseling✓ YesAny licensed mental health provider
Sunscreen (SPF 15+)✓ YesPermanently eligible since CARES Act
Acupuncture✓ YesMust be for a medical condition
Fertility treatments / IVF✓ YesIncluding egg freezing
Wegovy / Ozempic (weight loss)✓ YesAs a prescription medication
Gym membership⚠ PartialOnly with Letter of Medical Necessity (LMN)
Vitamins and supplements⚠ PartialOnly if prescribed for a specific condition
Teeth whitening✗ NoCosmetic — not medically necessary
Cosmetic surgery✗ NoUnless treating a medical condition
Hair loss treatment⚠ PartialRogaine yes, hair transplants no
Standing desk⚠ PartialOnly with LMN for a back condition
CPAP machine✓ YesSleep apnea treatment
Air purifier⚠ PartialOnly with LMN for allergies/asthma
Service animals✓ YesIncluding food, training, vet care

HSA vs FSA: same expenses, different rules

Both HSA and FSA cover the same expense categories under IRS Publication 502. The difference is in how the accounts work — not what you can spend money on. HSAs roll over forever. FSAs are use-it-or-lose-it by December 31st (or your plan's grace period). If you're not sure which you have, check your benefits document or pay stub deduction description.

How to document eligible expenses

For any eligible expense, keep:

You don't need to submit documentation to your HSA custodian upfront — but if you're ever audited by the IRS, you'll need to prove every withdrawal was for a qualified medical expense. Keep records for at least 7 years.

Common mistake: Many people use their HSA debit card for a purchase and never keep the receipt. If the IRS questions a withdrawal years later, you'll need that documentation. Scan and save every receipt digitally.

What happens if you use HSA money on an ineligible expense?

If you're under 65 and use HSA funds for a non-qualified expense, you'll owe income tax on the amount plus a 20% penalty. After age 65, the penalty disappears — you just owe regular income tax, making the HSA function like a traditional IRA.

The fastest way to check any expense

The IRS list is thousands of items long and changes regularly. Rather than trying to memorize it, the practical approach is to check expenses one at a time before you pay — or right after. BenefAgent does this instantly, with IRS citations, for any expense you type in.

Check any expense instantly

Type "sunscreen", "therapy", "gym membership" — get an immediate answer with the exact IRS rule that applies.

Start free trial →