What a Flexible Spending Account Covers

A Flexible Spending Account (FSA) lets you pay for certain medical, dental, and vision expenses with pre-tax money — meaning you set aside money before taxes are taken out, lowering your taxable income for the year. The IRS maintains a specific list of what counts as an may be able to access expense, and the rules are strict: if an expense is not on that list, you cannot use FSA funds for it, even if it feels medical.

The core rule is this: an expense must be for diagnosis, treatment, or prevention of a disease or condition, and it must not be something that improves general health or appearance. That distinction cuts out a lot of things people assume are covered.

Key Takeaways

  • FSA funds cover copays, deductibles, prescription medications, and medical equipment prescribed by a doctor, but not over-the-counter drugs without a prescription or cosmetic procedures.
  • Dental and vision expenses — cleanings, fillings, exams, glasses, contact lenses — are covered if you have an FSA that includes a dental or vision component.
  • Expenses must be for you, your spouse, or a dependent claimed on your tax return; you cannot use FSA money for a friend or adult child not on your return.
  • You lose any FSA money you do not spend by the end of the plan year, with limited exceptions, so tracking what you can actually use matters before you contribute.

Medical Expenses That may have access to

Copays and coinsurance for doctor visits, urgent care, and emergency room trips are covered. Deductibles you pay toward your health insurance plan also count. If your insurance requires you to pay a portion of a medical service, FSA money can cover your share.

Prescription medications are covered, but over-the-counter drugs are not — with one exception: you can use FSA funds for over-the-counter medications if you have a written prescription from your doctor. Insulin is the major exception to the prescription rule; you can buy insulin over the counter with FSA funds without a prescription.

Medical equipment prescribed by a doctor — crutches, wheelchairs, blood pressure monitors, glucose meters, hearing aids — qualifies. Bandages, gauze, and other medical supplies also count. Physical therapy, mental health counseling, and addiction treatment are covered if ordered by a healthcare provider.

Dental and Vision Coverage

If your FSA includes a dental component, routine cleanings, exams, fillings, root canals, crowns, and orthodontia (braces) are covered. Dental work that is purely cosmetic — like teeth whitening for appearance alone — does not count, but if whitening is part of treatment for a medical condition, it may be covered with documentation.

Vision expenses include eye exams, glasses, contact lenses, and contact lens solution. Laser eye surgery (LASIK) is covered if it corrects a refractive error like nearsightedness or astigmatism. Sunglasses are not covered, even if they have a prescription, because they are considered general-use eyewear rather than treatment.

What Does Not may have access to

Cosmetic procedures — facelifts, Botox, hair removal, teeth whitening for appearance — are not covered. General wellness expenses like gym memberships, vitamins, and supplements do not count, even if they support your health. Toothpaste, mouthwash, and shampoo are not may be able to access because they are personal hygiene products, not treatment.

Over-the-counter pain relievers, cold medicine, allergy medicine, and antacids do not may have access to without a prescription. Maternity clothes, even though they are worn during pregnancy, are not covered. Childcare and babysitting are not medical expenses. Cosmetic dental work — veneers for appearance, bonding for cosmetic reasons — does not count.

Expenses for a spouse or dependent who is not claimed on your tax return cannot be paid with FSA funds. If you have an adult child who files their own tax return, you cannot use your FSA to pay their medical bills.

How to Track and Submit Expenses

When you use an FSA debit card at a pharmacy or doctor's office, the transaction is often automatically approved if the merchant is coded as a medical provider. For other purchases — like buying glasses at an optical shop or paying a therapist — you may need to submit a receipt and a claim form to your FSA plan administrator.

Keep receipts for everything you buy with FSA funds. Your plan administrator may ask for proof that an expense is may be able to access, especially for items that could be personal or medical depending on context. If you cannot provide a receipt, the plan may deny the claim and you lose the money.

Some FSA plans use a third-party administrator (like WageWorks, Conduent, or HealthEquity) to process claims. Check your plan documents to find out who manages your account and how to submit receipts — usually through a website portal or mobile app.

The Use-It-or-Lose-It Rule and Carryover

FSA money does not roll over to the next year. If you contribute $2,500 to your FSA and spend only $1,800 by December 31, you lose the remaining $700. This is called the use-it-or-lose-it rule, and it is a major reason to estimate carefully before you contribute.

A small carryover is allowed in some plans: you may be able to carry over up to $610 (this amount changes yearly) into the next plan year. However, not all employers offer this option, and it is not automatic — check your plan documents to see if carryover is available to you.

If you have a may have access to life event — marriage, birth of a child, loss of coverage — you may be able to change your FSA contribution mid-year. Otherwise, you are locked into your election until the next open enrollment period.

Frequently Asked Questions

Can I use my FSA to buy vitamins or supplements?

No, vitamins and supplements are not covered by FSA funds because they are considered general wellness products, not treatment for a specific condition. The only exception is if your doctor prescribes a specific supplement for a diagnosed deficiency or medical condition — then you may be able to use FSA funds with documentation from your doctor.

What if I buy something I think is covered and the claim is denied?

Contact your FSA plan administrator and ask why the claim was denied. If you believe the expense is may be able to access, ask what documentation they need. You have the right to appeal a denial, usually within 30 to 60 days. Keep your receipt and any medical records that support your claim.

Can I use FSA money to pay for my partner's medical expenses if we are not married?

No. FSA funds can only be used for you, your spouse, or dependents you claim on your tax return. An unmarried partner, even if you live together, does not count unless you legally adopt them or claim them as a dependent.

Do I have to use my FSA debit card, or can I pay out of pocket and get reimbursed?

Both methods work. You can use an FSA debit card at the point of sale, or you can pay with your own money and submit a receipt to your plan administrator for reimbursement. Some people pay out of pocket to keep receipts organized and avoid debit card disputes.

What happens to my FSA money if I leave my job?

You lose access to your FSA when you leave your job. Any money remaining in your account stays with your employer's plan — you cannot take it with you or transfer it to a new employer's FSA. This is another reason to estimate conservatively when you enroll.