FSA coverage depends on whether the expense is a may have access to medical cost under IRS rules

Your Flexible Spending Account (FSA) reimburses you for certain out-of-pocket medical, dental, and vision expenses — but not all of them. The IRS maintains a specific list of what counts as a may have access to expense, and the rules are stricter than most people expect. If you spend FSA money on something the IRS doesn't recognize, you owe taxes on that amount plus a penalty.

The core rule is simple: the expense must be for diagnosis, cure, mitigation, treatment, or prevention of disease, or for affecting any part or function of the body. That covers a lot, but it also excludes things that sound medical but aren't classified that way by tax law.

Key Takeaways

  • Copays, coinsurance, deductibles, and prescription medications are covered; over-the-counter drugs are covered only if you have a prescription.
  • Dental work, vision care, and hearing aids are covered, but cosmetic procedures and teeth whitening are not.
  • Gym memberships, vitamins, and general wellness products are not covered unless prescribed by a doctor for a specific medical condition.
  • You can use FSA funds for mental health treatment, physical therapy, and medical equipment like crutches or blood pressure monitors.
  • The IRS publishes a full list of may have access to expenses, and your plan administrator can tell you whether a specific item is covered under your plan.

Medical expenses your FSA will pay for

Copays and coinsurance for doctor visits, hospital stays, and urgent care are covered. Deductibles you pay toward your health insurance also count. Prescription medications are covered in full, and you can use FSA money at the pharmacy counter without a separate receipt.

Mental health treatment — therapy, psychiatry, and counseling — is covered the same way as physical health care. Medical equipment like crutches, wheelchairs, blood pressure monitors, and glucose meters is covered. Diagnostic tests ordered by a doctor, including lab work and imaging, are covered. Dental work including cleanings, fillings, root canals, and orthodontia is covered. Vision care including eye exams, glasses, contact lenses, and lens solution is covered.

Hearing aids and hearing aid batteries are covered. Acupuncture, chiropractic care, and physical therapy ordered by a doctor are covered. Fertility treatment, including in vitro fertilization (IVF), is covered. Prescription birth control is covered; over-the-counter birth control is not.

Over-the-counter items with and without a prescription

Over-the-counter medications — cold medicine, allergy pills, pain relievers, antacids — are covered only if you have a written prescription from a doctor. A verbal prescription does not count; you need the actual prescription on file. This rule changed in 2020 and catches many people off guard.

If your doctor writes a prescription for an over-the-counter item, you can use your FSA card at the pharmacy and the pharmacist will process it as a prescription. If you buy the same item without a prescription, you cannot use FSA funds. Some people keep a standing prescription for common items like ibuprofen or allergy medicine to avoid this problem.

Supplies like bandages, gauze, and medical tape are covered without a prescription because they are not drugs. First aid kits are covered. Sunscreen is not covered unless prescribed for a specific skin condition.

What your FSA will not cover

Cosmetic procedures are not covered, even if performed by a doctor. This includes teeth whitening, Botox, dermal fillers, and elective plastic surgery. Cosmetic dentistry like veneers or bonding for appearance only is not covered, though the same procedure done to repair a tooth after injury may be.

Gym memberships and fitness classes are not covered, even if your doctor recommends exercise. Vitamins and supplements are not covered unless prescribed by a doctor for a diagnosed deficiency. General wellness products like essential oils, weight loss programs, and nutrition counseling are not covered. Maternity clothes are not covered. Childcare and babysitting are not covered, even if you need them to attend medical appointments.

Cosmetic eyeglasses — frames chosen purely for appearance — are not covered, though the lenses and a basic frame are. Hair loss treatments like minoxidil are not covered unless prescribed for a medical condition like alopecia. Teeth whitening and cosmetic orthodontia are not covered.

Prescription requirements and documentation

Your doctor must write a prescription or provide a letter stating the medical necessity for an item to be covered. For some items like glasses or hearing aids, the provider (optometrist, audiologist) can document the need. For over-the-counter drugs, you need the actual prescription; a doctor's note saying "take ibuprofen" is not enough.

Keep receipts and prescriptions together. Your plan administrator may ask for proof that an expense was medically necessary, and you will need the documentation to show it was prescribed. If you cannot produce the prescription or letter, the plan can deny reimbursement or ask you to repay the amount.

Items that depend on your specific plan

Some expenses fall into a gray area where the IRS allows them but individual plans may not. These include certain types of medical equipment, alternative therapies, and preventive care items. Your plan document and your plan administrator are the final word on what your specific FSA covers.

Call your plan administrator before spending FSA money on anything unusual — medical alert systems, air purifiers for asthma, certain types of medical alert jewelry, or specialized equipment. They can tell you in minutes whether it is covered under your plan. Many plans have a phone line or online tool where you can check coverage for a specific item.

How to find the full IRS list

The IRS publishes Publication 502, which lists all may have access to medical expenses. It is available free on the IRS website. Your plan administrator should also provide a list of covered expenses, though it may be shorter than the IRS list because individual plans can be more restrictive.

If you are unsure about a specific expense, start with your plan administrator. They know your plan's rules and can give you a yes or no answer. If they say something is not covered under your plan but you think it should be, you can ask to see the plan document or request an exception in writing.

Frequently Asked Questions

Can I use my FSA card for over-the-counter cold medicine?

Only if you have a written prescription from your doctor. Without a prescription, the purchase is not covered. Many people ask their doctor for a standing prescription for common over-the-counter items so they can use FSA funds without having to get a new prescription each time.

Is teeth whitening covered by my FSA?

No. Teeth whitening is considered cosmetic and is not a covered expense. However, if your dentist performs whitening as part of treating a specific dental disease or condition, it may be covered — ask your dentist and plan administrator to confirm.

Can I use FSA money for my gym membership if my doctor says I need to exercise?

No. Gym memberships and fitness classes are not covered even with a doctor's recommendation. However, physical therapy prescribed by a doctor for an injury or condition is covered, and you can use FSA funds for that.

What happens if I spend FSA money on something that is not covered?

You will owe income tax on that amount plus a 20% penalty. The plan administrator reports it to the IRS, and you report it on your tax return. It is better to ask before you spend the money than to find out later that it was not covered.

Does my FSA cover mental health treatment?

Yes. Therapy, psychiatry, counseling, and psychiatric medications are all covered the same way as physical health care. Copays for mental health visits and prescription costs for psychiatric drugs are reimbursable expenses.