A Flex Spending Account covers medical expenses your insurance doesn't, but not everything you might think
A Flex Spending Account (FSA) lets you set aside pre-tax money from your paycheck to pay for out-of-pocket medical costs. The IRS maintains a specific list of what counts as a medical expense, and it's narrower than most people assume. You can use FSA money for copays, deductibles, prescriptions, and certain medical equipment — but not for over-the-counter vitamins, gym memberships, or cosmetic procedures. The key is that the expense must be for diagnosis, treatment, or prevention of a disease or condition, and it must be something your health insurance doesn't cover.
The rules are strict because FSA money comes out of your paycheck before taxes, which means the government is effectively subsidizing these purchases. That's why the IRS publishes a detailed list of may be able to access and ineligible items, and why your FSA administrator may ask for receipts or documentation. Understanding what qualifies saves you from spending money on something that turns out to be ineligible, or worse, losing FSA funds at year-end because you didn't know what you could actually buy.
Key Takeaways
- FSA money covers copays, coinsurance, deductibles, and prescription medications that your insurance requires you to pay out of pocket.
- Most over-the-counter medicines and health products require a prescription from your doctor to be FSA-may be able to access, even if you can buy them without one at a pharmacy.
- Medical equipment like crutches, wheelchairs, hearing aids, and diabetic supplies are covered, but only if they treat a specific medical condition.
- Cosmetic procedures, gym memberships, vitamins, and general wellness products are never FSA-may be able to access, even if they improve your health.
- You must spend FSA money on yourself, your spouse, or your dependents — not on anyone else, even if you're paying their medical bills.
Prescription medications and over-the-counter drugs with a prescription
Any prescription medication your doctor writes is FSA-may be able to access, whether it treats a chronic condition or a one-time illness. This includes birth control pills, blood pressure medication, antibiotics, and inhalers. You pay with your FSA debit card at the pharmacy just like you would with a regular card.
Over-the-counter drugs are trickier. Aspirin, cold medicine, allergy tablets, and antacids are not FSA-may be able to access on their own — you cannot just buy them off the shelf. However, if your doctor writes a prescription for any of these, they become FSA-may be able to access. Some people ask their doctor for a prescription for ibuprofen or allergy medicine specifically so they can use FSA funds, and doctors often will. The prescription does not have to be for a brand name; a generic version with a prescription counts.
Copays, coinsurance, and deductibles
Any amount you owe to a doctor, hospital, or urgent care clinic counts as an FSA expense. This includes the copay you hand over at the front desk, the coinsurance you pay after your deductible is met, and the full deductible itself if you have not met it yet. You can use FSA money to pay these costs at the time of the visit or reimburse yourself later if you paid out of pocket.
Dental and vision copays and deductibles are also covered. If your dental insurance requires you to pay $200 toward a crown, you can use FSA funds for that. If your vision plan has a $50 copay for an eye exam, FSA money works there too. This applies whether the service is preventive (like a cleaning) or restorative (like a filling).
Medical equipment and supplies
Durable medical equipment — items meant to last and treat a medical condition — is FSA-may be able to access. This includes wheelchairs, crutches, canes, walkers, hearing aids, continuous positive airway pressure (CPAP) machines, and blood pressure monitors. Diabetic supplies like test strips, lancets, and glucose meters are covered. Orthopedic braces, compression stockings, and back supports are may be able to access if they treat a diagnosed condition.
The rule is that the item must be prescribed or recommended by a doctor for a specific medical condition, not just something that might help you feel better. A heating pad you buy for general back pain may not be may be able to access, but one prescribed by a physical therapist for a diagnosed injury usually is. When in doubt, keep the receipt and any documentation from your doctor showing the medical need. This protects you if your FSA administrator later asks for proof that the expense was legitimate.
Mental health and therapy services
Copays and coinsurance for therapy, counseling, and psychiatric visits are FSA-may be able to access. This includes sessions with a therapist, psychologist, psychiatrist, or counselor, whether in person or telehealth. If your insurance plan covers mental health services and you owe a copay, FSA money covers it.
Inpatient mental health treatment, such as a stay in a psychiatric hospital or residential treatment facility, is also may be able to access. You can use FSA funds for your share of the cost. This includes any copays, coinsurance, or deductibles the facility charges.
What is not covered, even if it seems medical
Cosmetic procedures are never FSA-may be able to access, even if they improve how you feel. This includes teeth whitening, Botox, hair removal, and cosmetic surgery. The exception is if a procedure is reconstructive — for example, surgery to repair a nose broken in an accident is covered, but surgery to reshape a nose for appearance is not.
Vitamins, supplements, and general wellness products are not covered unless they treat a specific disease. A multivitamin is not may be able to access. Vitamin D prescribed by your doctor to treat a deficiency might be, depending on your plan. Sunscreen, toothpaste, and deodorant are not may be able to access. Gym memberships and fitness classes are not covered, even if your doctor recommends exercise.
Over-the-counter pain relievers, cold medicine, and allergy tablets without a prescription are not may be able to access. Pregnancy tests and contraceptive devices like condoms are not covered (though prescription birth control is). Weight loss programs and diet supplements are not may be able to access unless they treat a diagnosed medical condition like obesity under a doctor's care.
Who you can spend FSA money on
You can use your FSA to pay for medical expenses for yourself, your spouse, and your dependents. A dependent is someone you claim on your tax return — usually your children, but sometimes a parent or other relative if you provide more than half their support. You cannot use FSA money to pay for a friend's medical bills or a parent's expenses if you do not claim them as a dependent.
If you have a child who ages out of your coverage (usually at 26 for insurance purposes), you can no longer use FSA money for their medical expenses unless you still claim them as a dependent on your taxes. The FSA rule follows the tax definition of dependent, not the insurance definition.
How to keep track and avoid losing money
FSAs operate on a "use it or lose it" basis — money you do not spend by the end of the plan year is forfeited. Your employer sets the plan year, which is usually the calendar year but sometimes runs on a different schedule. Some employers offer a grace period of up to 2.5 months into the next year, or a carryover of up to $610 (this amount changes yearly). Check your plan documents to see what your employer offers.
Keep receipts for everything you buy with FSA money. Your FSA administrator may ask for proof that an expense was medical and may be able to access. If you cannot provide documentation, you may have to repay the money. Many people photograph receipts or save them digitally to make this easier. Set a reminder in the fall to review what you have spent and what you have left, so you can plan purchases before the year ends.
Frequently Asked Questions
Can I use FSA money for my pet's medical bills?
No. FSA funds are only for medical expenses for you, your spouse, and your dependents — not pets. Veterinary care is not covered under any circumstances, even if you consider your pet part of your family.
Is acupuncture or chiropractic care FSA-may be able to access?
Yes, if your insurance covers it and you owe a copay or coinsurance. The copay or coinsurance is FSA-may be able to access. If your insurance does not cover these services, you cannot use FSA money to pay for them out of pocket.
Can I use FSA money for my child's braces?
Yes, if you claim your child as a dependent. Orthodontic treatment is a medical expense. You can use FSA funds for the copay or coinsurance your dental insurance requires, or for the full cost if your insurance does not cover orthodontics.
What happens if I use my FSA card and the expense is not actually may be able to access?
Your FSA administrator may ask for a receipt and documentation. If the expense is not may be able to access, you may have to repay the money to the FSA. This is why keeping receipts and knowing the rules matters — it protects you if there is a question later.
Can I use FSA money for a medical procedure my insurance denies?
No. If your insurance company denies a claim because they do not cover the procedure, FSA money cannot be used to pay for it. FSA rules follow insurance rules — if insurance will not cover it, FSA will not either.