You cannot withdraw cash from an FSA card. The account only pays out in two ways: you swipe the debit card your plan administrator issued at a retailer that accepts it, or you pay for an eligible medical expense out of pocket and file a reimbursement claim to get the money sent back to you. The funds are yours, but the IRS ties every payout to a qualifying medical expense with documentation to match.
Paying With the FSA Debit Card
The card is the fastest route. At pharmacies, medical supply stores, and many large retailers, the card runs through the Inventory Information Approval System (IIAS), which checks each item at the register against a database of FSA-eligible products. Qualifying items are approved automatically. Ineligible items are declined in real time, so you can split the transaction and pay for the shampoo or snacks with a different card.
At the terminal, choose credit rather than entering a PIN. The card does not give you cash back; it moves funds directly from your FSA to the merchant. If a retailer does not participate in IIAS, the card may be declined even when the purchase is perfectly eligible. Pay out of pocket in that case and file for reimbursement instead.
Auto-approval at the register does not close the loop. Your administrator can still ask for a receipt afterward to verify the charge, and failing to respond triggers a chain of consequences covered below. Save every receipt from every swipe.
Filing a Reimbursement Claim
When you pay out of pocket, you get the money back by filing a claim. Log into your administrator’s online portal or mobile app, complete the claim form, and upload images of your receipts. Digital submissions clear faster than paper. If you mail a paper claim, send the signed form with copies of your receipts, not originals, to the address on your administrator’s site.
Processing time depends on the administrator and the type of expense. Simple claims can clear in one to two business days; pharmacy and more complex claims can take 10 to 12 business days or longer.1FSAFEDS. FAQs Payout comes through the method you picked at enrollment. Direct deposit into a checking account is the common choice, and some plans still cut paper checks. Track the claim through the administrator’s dashboard so you can fix problems before the filing window closes.
Documentation Every Payout Requires
Whether the money comes out through the card or through a claim, the IRS requires you to substantiate each expense with three pieces of information: a description of the service or product, the date it was provided, and the amount charged.2Internal Revenue Service. Substantiation Requirements for Medical Expenses An itemized receipt or an Explanation of Benefits from your insurer meets that standard. A generic credit card statement showing only a merchant name and a total usually does not, because it does not prove what you bought.
Claim forms ask you to copy details from the receipt into specific fields. If the dates or dollar amounts on the form do not match the receipt exactly, the claim gets denied or sent back for clarification. Check both before submitting.
Dual-purpose items like sunscreen, air purifiers, or ergonomic equipment need an extra step. Your administrator will require a Letter of Medical Necessity from your doctor naming the condition, confirming the item is medically necessary and not cosmetic, and specifying how long treatment is expected to last.3FSAFEDS. Letter of Medical Necessity Attach it with the claim rather than waiting for the administrator to ask.
What the FSA Will and Won’t Pay For
Eligibility ties back to Section 213(d) of the tax code, meaning expenses for diagnosing, treating, or preventing a medical condition. IRS Publication 502 lists qualifying costs alphabetically.4Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses The categories that account for most day-to-day spending:
- Copays, coinsurance, and deductibles for medical, dental, and vision visits
- Prescriptions and over-the-counter drugs, including pain relievers and allergy medicine
- Dental work such as cleanings, fillings, crowns, and orthodontia
- Eyeglasses, contact lenses, solution, and eye exams
- Therapy, psychiatric care, and substance abuse treatment
Cosmetic procedures, gym memberships, general toiletries, and health insurance premiums are not eligible.4Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses For 2026, the salary-reduction cap on health FSA contributions is $3,400.5Internal Revenue Service. Revenue Procedure 2025-32
When the Card Gets Suspended
If your administrator flags a card charge as unsubstantiated, you will get a receipt request. IRS guidance gives the administrator authority to deactivate the card if you do not respond. The typical timeline: a receipt request within about 10 days of the flagged charge, a 30-day window to send proof, then a final warning. If the expense is still unverified after roughly 40 days, the card shuts off.6Internal Revenue Service. Correction Procedures for Improper Health Flexible Spending Arrangement Payments The card stays off until you either send the receipt or repay the plan for the amount in question. You can still get reimbursed for new expenses in the meantime by filing manual claims.
When a charge turns out to be genuinely ineligible, the correction sequence escalates. Your employer demands repayment first. If you do not repay, they can withhold the amount from your paycheck to the extent the law allows. Any remaining balance is offset against future approved claims, and anything still outstanding after that is treated as a regular business debt owed to the employer.6Internal Revenue Service. Correction Procedures for Improper Health Flexible Spending Arrangement Payments Respond to substantiation requests right away, even for small charges.
Deadlines That Limit When You Can Spend
Any balance left in the FSA at the end of the plan year is forfeited under the IRS use-it-or-lose-it rule.7Internal Revenue Service. IRS: Eligible Employees Can Use Tax-Free Dollars for Medical Expenses Your employer may soften that rule with one of two options, but not both at once.8Internal Revenue Service. IRS Notice 2013-71 – Modification of Use-or-Lose Rule for Health Flexible Spending Arrangements
- A grace period gives you an extra two and a half months after the plan year ends to incur new eligible expenses with leftover funds. For a calendar-year plan, you have until March 15 to actually receive care or buy eligible items.7Internal Revenue Service. IRS: Eligible Employees Can Use Tax-Free Dollars for Medical Expenses
- Carryover lets you roll up to $680 in unused funds into the next plan year for 2026. Employers can set a lower cap or offer no carryover at all.5Internal Revenue Service. Revenue Procedure 2025-32
The run-out period is different from both. It is a window, often 90 days, after the plan year ends during which you can file claims for expenses you already incurred during the plan year. A run-out period does not let you rack up new expenses. It just gives you extra time to send in paperwork. If your plan year ended December 31 and you have a 90-day run-out, you can file in February for a November doctor visit, but you cannot use it to pay for a February appointment unless your plan also offers a grace period.
Check your employer’s Summary Plan Description for the exact provisions your plan uses. Miss these deadlines and the money is gone; administrators do not make exceptions.
Withdrawing After You Leave the Job
The health FSA is tied to your employment. Once you separate, whether you quit, retire, or get laid off, you can no longer incur new eligible expenses against the account. You can still file claims for expenses that happened while you were active, subject to any run-out period the plan allows.
The uniform coverage rule made your full annual election available from day one of the plan year. If you elected $3,400, spent $3,000 by March, and left in April having contributed only $1,200 through payroll deductions, your employer cannot claw back the difference. The same rule cuts the other way: if you leave with a large unspent balance, those funds are generally forfeited.
COBRA continuation coverage can keep a health FSA active temporarily. You pay the full contribution amount plus a 2% administrative fee out of pocket, and you have 60 days after coverage ends to elect it, with the coverage retroactive to your separation date.9U.S. Department of Labor. COBRA Continuation Coverage It only pencils out when the remaining FSA balance is meaningfully larger than the premiums you would pay to keep the account alive. For most people with small remaining balances, it is not worth it.
If a Reimbursement Claim Is Denied
A denial notice should explain the reason and outline your appeal rights. Under federal regulations implementing ERISA, you have at least 180 days from receiving the denial to file a formal appeal, and the plan has 30 to 60 days to issue a decision on that appeal depending on the benefit type.
Before filing formally, check whether the denial is really a documentation problem. The common causes are missing receipts, a mismatch between the claim form and the attached documentation, or an item the administrator flagged as potentially ineligible. A phone call to the administrator often clears these up, sometimes with just a corrected receipt or the Letter of Medical Necessity you forgot to attach.