FSA funds cover medical expenses your insurance doesn't fully pay for, but not everything you might think

A Flexible Spending Account (FSA) lets you set aside pre-tax money to pay for certain healthcare costs. The IRS maintains a specific list of what qualifies, and it's narrower than many people expect. You can use FSA money for copays, deductibles, prescription medications, and medical equipment — but not for gym memberships, cosmetic procedures, or over-the-counter vitamins without a prescription.

The key rule: the expense must be for diagnosis, treatment, or prevention of a medical condition, and it must not be something your health insurance already covers in full. If your plan covers the cost completely, you cannot use FSA funds for it.

Key Takeaways

  • FSA money covers copays, coinsurance, deductibles, and prescription medications that your insurance requires you to pay out of pocket.
  • Medical equipment like crutches, wheelchairs, hearing aids, and prescription eyeglasses are FSA-may be able to access, but only if you have a prescription or medical order.
  • Over-the-counter medications like aspirin and allergy pills are not FSA-may be able to access unless your doctor writes a prescription for them specifically.
  • Dental and vision care expenses, including cleanings, fillings, glasses, and contact lenses, are FSA-may be able to access if you pay for them yourself.
  • Expenses your insurance covers in full cannot be paid with FSA funds — the account is only for your out-of-pocket medical costs.

Prescription medications and medical supplies you can pay for

Any medication your doctor prescribes is FSA-may be able to access, whether it treats a chronic condition or a short-term illness. This includes birth control pills, inhalers, insulin, and antibiotics. You pay with your FSA debit card at the pharmacy, and the cost comes directly from your account.

Medical supplies tied to a diagnosed condition are also covered: diabetic test strips and lancets, blood pressure monitors, thermometers, bandages, and first-aid supplies. Incontinence products, if prescribed or medically necessary, may have access to as well. The rule is that the item must treat or manage a specific health condition, not just promote general wellness.

Dental and vision expenses FSA covers

Dental work is FSA-may be able to access if you pay out of pocket — cleanings, fillings, root canals, crowns, and orthodontia all count. If your dental insurance covers part of the cost, you can use FSA funds for your share of the bill. The same applies to vision care: eye exams, glasses, contact lenses, and contact lens solution are all FSA-may be able to access.

Cosmetic dental work, like teeth whitening for appearance alone, is not covered. But if whitening is medically necessary (for example, to restore appearance after an accident or disease), a dentist's documentation may make it FSA-may be able to access. Always ask your FSA plan administrator before paying for a procedure you think might be borderline.

Medical equipment and devices that may have access to

Durable medical equipment — items meant to last and help manage a medical condition — is FSA-may be able to access if you have a prescription or medical order from a doctor. This includes wheelchairs, crutches, canes, walkers, hearing aids, and continuous positive airway pressure (CPAP) machines. Prescription eyeglasses and contact lenses also fall into this category.

The equipment must be ordered by a healthcare provider and used to treat a diagnosed condition. A back brace for a herniated disc qualifies; a back brace for general posture support does not. If you are unsure whether your device needs a prescription to be FSA-may be able to access, check with your plan's customer service before you buy.

What FSA does not cover

Over-the-counter medications without a prescription are not FSA-may be able to access, even if they treat a real medical problem. Aspirin, ibuprofen, antihistamines, and cold medicine cannot be paid with FSA funds unless your doctor writes a prescription specifically for that medication. This rule changed in 2020 and catches many people off guard.

Cosmetic procedures — Botox, hair removal, teeth whitening for appearance — are not covered. Gym memberships, fitness classes, and general wellness products are not covered, even if they help prevent disease. Sunscreen, toothpaste, and shampoo are not covered. Maternity clothes, even if prescribed by a doctor during pregnancy, are not covered. If the expense is primarily for appearance or general health rather than treating a diagnosed condition, it does not may have access to.

How to know if something is FSA-may be able to access before you buy

Your FSA plan administrator publishes a list of may be able to access expenses — ask for it or check your plan documents online. The IRS also maintains Publication 502, which details what counts as a medical expense. When you are unsure about a specific item, contact your plan's customer service with the product name and what it treats. They can tell you yes or no before you spend the money.

Keep receipts for everything you buy with FSA funds. Your plan may ask you to submit a receipt and a statement from your doctor showing the medical reason for the purchase. If you cannot document that an expense was medically necessary, you may have to repay the FSA out of pocket, and you could face tax penalties.

Frequently Asked Questions

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

Yes, if they are your tax dependent. You can use FSA funds for medical expenses of your spouse and any children you claim on your tax return, even if they are not covered under your health insurance plan. Keep documentation showing the relationship and the medical expense.

What happens if I buy something with my FSA card and it turns out it is not may be able to access?

Your plan administrator may ask you to repay the amount to the FSA. If you do not repay it, the amount is treated as taxable income and you may owe taxes and penalties. Always check before you buy, especially for items that seem like they might be borderline.

Can I use FSA money for therapy or mental health counseling?

Yes. Copays and coinsurance for therapy, psychiatry, and counseling are FSA-may be able to access. If you pay out of pocket for mental health services, you can use FSA funds for those costs as well. Your insurance coverage does not change the FSA may be able to access.

Are over-the-counter pain relievers FSA-may be able to access if I have a prescription?

Yes. If your doctor writes a prescription for ibuprofen, aspirin, or another over-the-counter medication, it becomes FSA-may be able to access. The prescription must be written by a licensed healthcare provider and filled at a pharmacy — you cannot just buy it off the shelf.

Can I use FSA funds for medical travel or hotel stays during treatment?

Only in limited cases. Travel to receive medical care is not FSA-may be able to access. However, lodging during inpatient medical care (like a hospital stay) may be covered if it is medically necessary and you have documentation. Ask your plan administrator about your specific situation.