A flex spending account covers medical costs your insurance doesn't, but not everything
A flexible spending account (FSA) is an employer-sponsored account where you set aside pre-tax money to pay for out-of-pocket medical expenses. The money comes from your paycheck before taxes are taken out, which lowers your taxable income for the year. You decide how much to contribute each year during your employer's open enrollment period, and you can only change that amount if your life circumstances change — marriage, birth of a child, loss of coverage.
The catch is that FSAs have strict rules about what you can buy. The IRS maintains a list of may have access to medical expenses, and only those purchases let you use FSA money without paying taxes on it. If you buy something that is not on that list, you pay for it with after-tax money from your regular account, and you cannot get reimbursed from your FSA.
The list is longer than most people think, but it has real gaps. Understanding what counts saves you from setting aside money you cannot use.
Key Takeaways
- FSA money covers doctor visits, prescriptions, dental work, vision care, and medical equipment — but only if your insurance does not already cover it.
- Over-the-counter medicines like cold medicine and pain relievers now count as may have access to expenses without a prescription, but vitamins and supplements do not.
- Gym memberships, weight loss programs, and cosmetic procedures do not count, even if your doctor recommends them for your health.
- You must use FSA money by the end of the plan year or lose it — there is no rollover to next year, though some employers offer a grace period of up to 2.5 months.
- You need to keep receipts and documentation to prove expenses are may have access to if your FSA administrator asks for proof.
Medical care and prescriptions that FSA money covers
FSA money pays for the out-of-pocket costs of doctor visits, including copays and coinsurance. If your insurance requires you to pay $30 to see your primary care doctor, $50 to see a specialist, or a percentage of the bill after you meet your deductible, FSA money covers those amounts. The same applies to urgent care visits, emergency room copays, and hospital stays where you owe a portion of the bill.
Prescription medications are covered, whether they are brand-name or generic. Over-the-counter medicines now count too — you can use FSA money for aspirin, ibuprofen, cold medicine, allergy tablets, and antacids without a prescription. This changed in 2020; before that, you needed a doctor's prescription for over-the-counter drugs to use FSA funds.
Mental health care is covered the same way as physical health care. Copays for therapy sessions, psychiatry visits, and counseling all count as may have access to expenses. If your insurance covers part of the cost and you pay the rest, the part you pay comes from your FSA.
Dental and vision expenses that may have access to
Dental work is a major FSA category. Cleanings, fillings, root canals, crowns, extractions, and orthodontia all count. If you are paying out of pocket because your insurance does not cover orthodontia, or because you have hit your annual dental maximum, FSA money covers it. The same applies to dental implants and bridges.
Vision care includes eye exams, glasses, contact lenses, and contact lens solution. If you need a new prescription and your insurance covers the exam but not the frames and lenses, you can use FSA money for the frames and lenses. Laser eye surgery (LASIK) is also covered.
Hearing aids and hearing tests are may have access to expenses. If you need a hearing aid fitted and your insurance does not cover it, or covers only part of it, FSA money pays the gap.
Medical equipment and supplies that count
FSA money covers medical equipment prescribed by a doctor. This includes crutches, wheelchairs, walkers, canes, and braces. Blood glucose monitors and test strips for diabetes management are covered. Bandages, gauze, and other wound care supplies count. Heating pads and ice packs used for medical purposes are covered.
Pregnancy-related items are covered: maternity support belts, breast pumps, and nursing bras all count as may have access to expenses. Incontinence products are also covered.
If you have a chronic condition and need medical supplies regularly — syringes, lancets, compression stockings, or other items your doctor prescribes — FSA money covers them. The key is that a doctor has to say you need it for a medical condition, not just for general wellness.
What does not count, even if it seems medical
Vitamins and dietary supplements are not covered, even if your doctor recommends them. This is one of the most common surprises. Multivitamins, fish oil, probiotics, and herbal supplements all fall outside the may have access to expense list. The IRS treats them as general wellness products, not medical treatment.
Gym memberships and fitness classes do not count, even if your doctor tells you to exercise. Weight loss programs like Weight Watchers or Jenny Craig are not covered. Cosmetic procedures — including teeth whitening, Botox, and hair removal — do not count, even if a dermatologist performs them. The rule is that cosmetic procedures are not covered unless they are medically necessary to treat a disease or injury.
Over-the-counter items that are not medicines do not count. Sunscreen, lip balm, lotion, and other skincare products are not may have access to expenses. Toothpaste and mouthwash are not covered. Deodorant is not covered. These are considered general hygiene products, not medical expenses.
Marijuana, whether prescribed or not, is not a may have access to FSA expense under federal law, even in states where it is legal.
How to track what you spend and prove it
When you use your FSA debit card or pay out of pocket and request reimbursement, keep the receipt. Your FSA administrator may ask you to prove that an expense is may have access to, especially for items that could be either medical or personal — like a heating pad or compression stockings. The receipt should show what you bought and the date.
If you are reimbursed by mail, you will typically submit a claim form with your receipt attached. Some FSA administrators use an online portal where you upload receipts. A few do not ask for documentation upfront but may request it later if they audit your account.
The IRS does not require you to submit receipts with your tax return, but you should keep them for at least three years in case of an audit. If you cannot prove an expense was may have access to, you may have to repay the FSA the pre-tax money you used, plus taxes on that amount.
The use-it-or-lose-it rule and how to plan around it
FSA money must be used by the end of the plan year or you lose it. Most plans run on a calendar year (January through December), though some employers use a different fiscal year. Any money left in your account on December 31 (or your plan year end date) is forfeited — you cannot roll it over to next year, and you do not get a refund.
Some employers offer a grace period of up to 2.5 months after the plan year ends. If your employer offers this, you can use FSA money through mid-March (for a calendar year plan) to pay for expenses you incurred during the plan year. Not all employers offer a grace period, so check your plan documents.
Because of this rule, many people contribute less than they think they will spend. A common strategy is to estimate conservatively — if you are not sure whether you will spend $2,500, contribute $1,500 instead. You can always use the money for expenses you did not expect, like an urgent dental visit or a new prescription.
Frequently Asked Questions
Can I use FSA money for my spouse or children?
Yes. FSA money can pay for may have access to medical expenses for you, your spouse, and any dependent children, regardless of whether they are covered under your health insurance plan. You do not have to be the one receiving the care — you can use your FSA to pay for your child's dental work or your spouse's prescription.
What happens if I contribute too much and have money left over?
You lose it. The money does not roll over, and you do not get a refund. This is why many people contribute conservatively. If your employer offers a grace period, you have a few extra months to spend it on may have access to expenses from the plan year.
Can I use FSA money for my pet's medical care?
No. Veterinary expenses are not may have access to FSA expenses. FSA money is limited to medical care for you and your dependents under the tax code.
Do I need a prescription for over-the-counter medicines to use FSA money?
No. As of 2020, you can buy over-the-counter medicines like pain relievers, cold medicine, and allergy tablets with FSA money without a prescription. You just need to keep the receipt if your FSA administrator asks for proof.
Can I use FSA money for travel to a medical appointment?
No. Travel costs — gas, flights, hotels, or meals — are not may have access to expenses, even if you are traveling for medical treatment. The exception is mileage: you can deduct mileage to and from medical appointments on your taxes, but that is separate from FSA rules.