FSA coverage depends on IRS rules, not what your employer thinks

Your Flexible Spending Account (FSA) covers medical, dental, and vision expenses that the IRS classifies as "may have access to." The catch: what qualifies is narrower than most people think, and it changes based on IRS guidance. Your employer's plan document sets the boundaries, but the IRS Publication 502 is the actual rulebook. If you buy something you think is medical and it turns out the IRS disagrees, you'll owe taxes plus a penalty on that money.

The most common mistake is assuming FSA works like a general health account. It doesn't. You can't use it for gym memberships, over-the-counter vitamins (unless prescribed), or cosmetic procedures. You also can't use it for insurance premiums, except in specific cases. The IRS updates what counts as may have access to regularly, so a product that was covered last year might not be this year, or vice versa.

Key Takeaways

  • FSA covers copays, deductibles, coinsurance, and out-of-pocket costs for medical, dental, and vision care that your insurance doesn't fully pay for.
  • Over-the-counter medications and supplies now count as FSA-may be able to access without a prescription, but vitamins, supplements, and cosmetic products do not.
  • Prescription medications, dental work, glasses, contacts, and hearing aids are covered, but gym memberships, weight-loss programs, and cosmetic procedures are not.
  • Your employer's plan document determines the exact rules for your account, so what's covered at one company may differ at another.
  • The IRS maintains the official list of may have access to expenses in Publication 502, and it's your responsibility to know whether a purchase qualifies before you spend FSA money.

Medical expenses that FSA covers

FSA pays for costs related to diagnosing, treating, or preventing disease or injury. This includes copays and coinsurance when you see a doctor, urgent care visit fees, emergency room bills, and hospital stays. It covers the portion of your bill that your health insurance doesn't pay. If your plan has a $1,500 deductible and you've met it, FSA can cover the coinsurance (the percentage you owe after insurance pays its share).

Prescription medications are covered. Over-the-counter medications like ibuprofen, cold medicine, and allergy pills are now covered without a prescription, though your plan document may have different rules. Insulin and other diabetes supplies, including test strips and lancets, are covered. Mental health treatment, including therapy and psychiatric visits, counts as a may have access to medical expense. Physical therapy, occupational therapy, and chiropractic care are covered if they treat a medical condition.

Medical equipment and supplies are covered when prescribed by a doctor: crutches, wheelchairs, blood pressure monitors, thermometers, and heating pads all count. Bandages, gauze, and first-aid supplies are covered. Pregnancy tests and contraceptives are covered. Acupuncture is covered if it treats a medical condition. Fertility treatments, including IVF and related procedures, are covered.

Dental and vision expenses FSA will pay for

Dental work is one of the most common FSA uses. Cleanings, fillings, root canals, extractions, and crowns are all covered. Orthodontia (braces) is covered. Dentures and dental implants are covered. Teeth whitening is not covered because it's considered cosmetic. Dental X-rays and exams are covered. If your dental insurance has a waiting period or annual maximum, FSA can cover the gap.

Vision expenses include eye exams, glasses, contact lenses, and contact lens solution. Laser eye surgery (LASIK) is covered. Hearing aids and related services are covered. Replacement lenses and frames are covered. Sunglasses are not covered unless they're prescribed for a medical condition like light sensitivity.

What FSA does not cover

Cosmetic procedures and products are not covered unless they treat a medical condition. Botox, facelifts, and cosmetic dentistry (like veneers for appearance only) don't count. Vitamins and supplements are not covered, even if they're sold in a pharmacy, because they're considered nutritional rather than medical. Weight-loss programs and diet plans are not covered. Gym memberships and fitness equipment are not covered, even if your doctor recommends exercise.

Insurance premiums are generally not covered by FSA, with two exceptions: COBRA premiums (continuation coverage when you leave a job) and long-term care insurance premiums are covered in some plans. Health insurance deductibles themselves are not covered, but the out-of-pocket costs you pay after meeting the deductible are. Cosmetic surgery is not covered. Maternity clothes, baby formula, and diapers are not covered. Toiletries like toothpaste and soap are not covered unless they're prescribed for a specific medical condition.

Over-the-counter items that are not medical supplies don't count: pain relief creams marketed as cosmetic, anti-aging skincare, and general wellness products fall into this category. Marijuana and cannabis products are not covered, even in states where they're legal, because they remain federally illegal. Veterinary expenses are not covered. Childcare and dependent care are covered through a separate account (Dependent Care FSA), not the medical FSA.

How to know if something is covered before you buy it

Check your employer's FSA plan document first. It lists what your specific plan covers and may be more restrictive than IRS rules. Your plan administrator (usually a benefits company or HR department) can answer coverage questions before you spend money. Many FSA debit cards have online portals where you can search for products to see if they're covered.

The IRS Publication 502 is the official reference, but it's written for tax purposes and can be hard to parse. A safer approach: if you're unsure, ask your plan administrator in writing and keep their response. If you buy something and it's later deemed ineligible, you'll owe taxes and a 20% penalty on that amount, so the cost of asking is much lower than the cost of guessing wrong.

Some retailers, like drugstores, have FSA-may be able to access sections online or in-store. Amazon and other retailers often label products as FSA-may be able to access. Don't rely entirely on retailer labels—they sometimes get it wrong. When in doubt, contact your plan administrator before checkout.

What happens if you buy something that's not covered

If you use your FSA debit card on an ineligible purchase, your plan administrator may flag it and ask you to prove it was medical. If you can't, you'll have to reimburse the FSA account. That money comes out of your paycheck or personal funds, and you'll owe income tax on it plus a 20% penalty.

Some FSA administrators are stricter than others about enforcement. A few catch almost nothing; others audit receipts regularly. Either way, the risk is yours. The IRS can also audit your tax return and disallow FSA deductions if they find ineligible expenses, which means back taxes, penalties, and interest.

Frequently Asked Questions

Can I use FSA for my health insurance deductible?

No, not the deductible itself. But once you've met your deductible and owe coinsurance or copays, FSA covers those out-of-pocket costs. If your plan has a $1,500 deductible and you haven't met it yet, FSA can't pay toward it. Once you've paid $1,500 out of pocket and met the deductible, FSA can cover the 20% coinsurance you owe on future visits.

Are over-the-counter medications covered without a doctor's note?

Yes. As of 2020, over-the-counter medications like ibuprofen, cold medicine, and allergy pills are FSA-may be able to access without a prescription. Your plan document may have different rules, so check with your administrator. Vitamins and supplements are still not covered, even over the counter.

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

Yes, if they're on your health insurance plan or you claim them as dependents on your taxes. FSA covers may have access to medical expenses for you, your spouse, and any dependent children, regardless of whose name the bill is in. You don't need to be the one receiving the care.

What if my employer's plan covers something the IRS says isn't may have access to?

Your employer's plan can be more restrictive than IRS rules, but not less. If your plan says something is covered and the IRS disagrees, the IRS wins. You'll owe taxes and penalties. Always check IRS Publication 502 or ask your administrator if you're uncertain.

Can I use FSA for prescription glasses or contacts?

Yes. Glasses, contacts, contact lens solution, and eye exams are all covered. Frames and lenses are covered. Sunglasses are not covered unless prescribed for a medical condition like light sensitivity or post-surgery recovery.