Almost any out-of-pocket cost for diagnosing, treating, or preventing a physical or mental health condition qualifies for HSA reimbursement, and the list is broader than most account holders realize: doctor and dentist visits, prescriptions, eyeglasses and contact lenses, over-the-counter medications, menstrual products, and mileage to appointments all count. What qualifies for HSA reimbursement is defined by Internal Revenue Code Section 213(d), and the same statute rules out cosmetic procedures, general-wellness purchases, and most insurance premiums.1Office of the Law Revision Counsel. 26 U.S.C. 213 – Medical, Dental, Etc., Expenses Spending HSA funds on anything outside that definition adds the withdrawal to your taxable income and tacks on a 20% penalty, so the line between eligible and ineligible is worth knowing before you swipe the card.
The Basic Definition and Who It Covers
The IRS defines a qualified medical expense as any cost related to diagnosing, treating, preventing, or managing a physical or mental health condition.1Office of the Law Revision Counsel. 26 U.S.C. 213 – Medical, Dental, Etc., Expenses That covers the obvious things: office visits, hospital stays, surgeries, lab work, imaging, prescription medications, and mental health therapy. It also covers less obvious costs like hearing aids, crutches, bandages, first-aid kits, and digital thermometers.
You can use HSA funds for yourself, your spouse, and your dependents. The rule actually reaches a bit further: you can also pay for someone you could have claimed as a dependent, even if you didn’t claim them because they filed a joint return or earned too much income.2Internal Revenue Service. Publication 969, Health Savings Accounts and Other Tax-Favored Health Plans
Getting to care counts too. The IRS medical mileage rate is 20.5 cents per mile in 2026, and you can reimburse parking fees and tolls tied to medical appointments on top of that.3Internal Revenue Service. 2026 Standard Mileage Rates
Dental and Vision Care
Dental and vision are fully eligible categories and the ones people most often forget about. Routine cleanings, fluoride treatments, fillings, root canals, extractions, dentures, and dental implants all qualify. So does orthodontic work, including braces and clear aligners, regardless of the patient’s age.
On the vision side, comprehensive eye exams, prescription eyeglasses, contact lenses, and contact lens solution and cases are reimbursable. LASIK and other corrective procedures qualify because they treat a diagnosed condition rather than merely change appearance.1Office of the Law Revision Counsel. 26 U.S.C. 213 – Medical, Dental, Etc., Expenses
Over-the-Counter Medications and Menstrual Products
Before 2020, a prescription was required to use HSA funds on over-the-counter drugs. The CARES Act permanently removed that requirement.4Internal Revenue Service. IRS Outlines Changes to Health Care Spending Available Under CARES Act Pain relievers, allergy medication, cold and flu remedies, and antacids are now reimbursable with no doctor’s note. Sunscreen rated SPF 15 or higher qualifies as preventative care.
The same law added menstrual care products as a permanent category. Tampons, pads, liners, menstrual cups, and sponges all qualify.4Internal Revenue Service. IRS Outlines Changes to Health Care Spending Available Under CARES Act You can buy these at any pharmacy or grocery store and reimburse yourself through the HSA.
Insurance Premiums: The Narrow Exceptions
This is where people go wrong most often. As a general rule, HSA funds cannot be used to pay health insurance premiums. There are four exceptions:2Internal Revenue Service. Publication 969, Health Savings Accounts and Other Tax-Favored Health Plans
- COBRA continuation coverage after leaving a job.
- Health insurance premiums paid while you are receiving federal or state unemployment compensation.
- Medicare Part A, Part B, Part D, and Medicare Advantage premiums once you’re 65 or older. Medigap (Medicare supplemental) premiums do not qualify.
- Long-term care insurance premiums, up to an age-based annual limit. For 2026 the caps run from $500 for people 40 and under to $6,200 for those over 70.
Using HSA money for any other health insurance premium is treated as a non-qualified distribution and taxed accordingly.
What Doesn’t Qualify
Anything cosmetic or aimed at general health rather than a specific condition is ineligible. Gym memberships, vitamins taken for general wellness, teeth whitening, and elective cosmetic surgery all fall outside the definition. The statute specifically excludes procedures directed at improving appearance that don’t treat illness or promote the proper function of the body.1Office of the Law Revision Counsel. 26 U.S.C. 213 – Medical, Dental, Etc., Expenses
The consequence of a wrong call is real. A non-qualified distribution gets added to your taxable income, and you owe an extra 20% penalty tax on top. On a $1,000 non-qualified withdrawal, someone in the 22% federal bracket loses about $420 to income tax and penalty combined. Three situations turn off the penalty: reaching age 65, becoming disabled, and death. After 65, non-medical withdrawals are still taxed as ordinary income, but the account behaves like a traditional retirement account with no additional 20%.5Office of the Law Revision Counsel. 26 U.S.C. 223 – Health Savings Accounts
Gray-Zone Items and Letters of Medical Necessity
Some purchases sit between medical treatment and general wellness. A mattress, an air purifier, a weight-loss program, special foods, supplements, or home accessibility modifications can qualify, but only if a healthcare provider documents that the item is medically necessary for a specific diagnosis. That documentation is called a Letter of Medical Necessity. It should identify the diagnosis, describe the recommended treatment or item, and state how long you’ll need it.
Common expenses that become eligible with a letter include weight-loss programs prescribed for obesity or heart disease, supplements or special foods required by a diagnosed condition, and modifications like grab bars or ramps for accessibility. Without the letter, the same purchase is treated as non-qualified and hit with tax and penalty. HSA administrators usually ask for the letter as part of the reimbursement review, so get it from your doctor before you file the claim.
You Can Reimburse Yourself Years Later
There is no deadline to reimburse yourself for a qualified medical expense, provided the expense was incurred after your HSA was established.2Internal Revenue Service. Publication 969, Health Savings Accounts and Other Tax-Favored Health Plans You can pay for a dental crown out of pocket in 2026, let your HSA balance grow tax-free for ten years, and reimburse yourself in 2036 with no tax due.
People who can afford to cover medical bills from checking use this on purpose: they save receipts, let the HSA investments compound, and pull the money out years later. The single hard rule is that the expense must post-date the account. Anything you paid before the HSA existed is permanently ineligible, no matter how long you wait.
Documentation to Keep
Every reimbursement needs backup that shows the expense was qualified. Good records include the date the service was provided (not just the date you paid), the provider or store name, a description of the service or product, and the amount you paid after any insurance adjustments. Explanation of Benefits statements from your insurer work as secondary proof alongside receipts.
Reimbursement usually happens one of two ways. Most HSA providers have a portal or app where you upload the receipt and enter the amount; funds arrive in your linked bank account within a few business days. The alternative is an HSA debit card used at the point of sale, which pays the provider directly and skips the reimbursement step. Either way, hold on to the receipts. The IRS can audit HSA distributions, and you’ll want that documentation for at least three years after you file the return reporting the distribution.