Regular shoes are not FSA eligible, but shoes prescribed by a doctor to treat a specific medical condition can be. The IRS treats footwear as a medical expense only when a diagnosed condition drives the purchase, and even then the rules differ by shoe type. Orthopedic shoes reimburse only the price difference over a comparable ordinary pair. Diabetic therapeutic shoes and post-surgical boots can be reimbursed in full. Get the paperwork right before you pay, or the claim comes back denied.
What Counts as Medically Necessary
Federal tax law, at Internal Revenue Code Section 213(d), defines eligible medical expenses as costs for diagnosing, treating, or preventing disease or for affecting a structure or function of the body.1Office of the Law Revision Counsel. 26 USC 213 – Medical, Dental, Etc., Expenses That definition is the yardstick every FSA administrator uses. For shoes, it means a diagnosed condition and a provider who says the footwear treats it.
The practical question is whether you would buy the shoes if you didn’t have the condition. If the answer is no, the expense is medical. If the shoes also work as everyday footwear, only the added cost above a normal pair is eligible. IRS Publication 502 states this directly: you can include the excess of the cost of an item in a special form over the cost of the same item in normal form.2Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses Standard pair costs $80, prescribed orthopedic version costs $250, and the FSA-eligible portion is $170.
Footwear That Qualifies
Orthopedic Shoes
Orthopedic shoes are built with extra depth, wide toe boxes, and reinforced arch structures for conditions like severe pronation, bunions, or chronic foot injuries. Only the cost difference between the prescribed pair and a non-specialized shoe qualifies. Your administrator will want documentation of that difference along with a Letter of Medical Necessity from your doctor.3FSAFEDS. Eligible Health Care FSA (HC FSA) Expenses
Therapeutic Shoes for Diabetes
People with diabetes and severe foot complications qualify for therapeutic footwear designed to prevent ulcers and skin breakdown. These shoes typically have seamless interiors that reduce friction for patients with peripheral neuropathy, where nerve damage turns minor irritation into a serious infection risk. Custom-molded diabetic shoes and extra-depth shoes with fitted inserts both fall into this category.4Medicare.gov. Therapeutic Shoes and Inserts A prescription from a podiatrist or the physician managing the diabetes is essential.
Post-Surgical Boots and Healing Shoes
Rigid-soled walking boots and healing shoes prescribed after foot or ankle surgery are FSA eligible. They immobilize the foot to allow bone or tissue repair and serve a purely medical function. Because they aren’t suited for everyday wear, the full cost qualifies, not just the excess over a regular shoe.
Orthotics and Inserts
You don’t always need to buy new shoes. Many internal components qualify on their own, even when the shoes they go into don’t, which lets you modify footwear you already own.
Custom-molded orthotics, fabricated from a cast or scan of your foot, are fully eligible with a detailed receipt.3FSAFEDS. Eligible Health Care FSA (HC FSA) Expenses Most plans don’t require a Letter of Medical Necessity for orthotics, which makes them easier to claim than orthopedic shoes. Over-the-counter arch supports, heel cups, and insoles marketed to treat conditions like plantar fasciitis are generally eligible with a receipt. Toe spacers and bunion guards used for alignment fall in the same category when purchased for a medical purpose.
The paperwork difference matters. Orthopedic shoes need an LMN plus documentation of the cost difference. Orthotics and inserts need a detailed receipt showing the item, date, and price. If you’re weighing which route to take, inserts in existing shoes are often the path of least resistance.
Shoes That Don’t Qualify
Shoes marketed as having extra cushioning, good arch support, or ergonomic design are not FSA eligible just because they feel better. Regular athletic shoes, running shoes, comfort-brand sneakers, and shoes labeled “supportive” at a retail store all fail the medical necessity test, even if your feet hurt without them. The IRS does not reimburse personal comfort, and “my doctor said I should wear good shoes” is not the same as a prescription for a medical device.
The same goes for dress shoes, work boots, and any footwear you’d buy regardless of a medical condition. If a shoe is available at a standard retailer and marketed to the general public for everyday use, it almost certainly doesn’t qualify. Without a diagnosed condition and a prescription tying the shoe to treating it, the purchase is personal no matter how good it is for your feet.
Documentation Before You Buy
Getting your paperwork right before you pay is the single best way to avoid a denied claim. For orthopedic shoes, you need two documents: a Letter of Medical Necessity and an itemized receipt.
The LMN must come from a licensed physician or podiatrist and must state the specific diagnosis, explain why the prescribed footwear is medically necessary, and identify the product or type of shoe recommended.5FSAFEDS. Letter of Medical Necessity Vague language kills claims. “Patient needs supportive footwear” is not enough. “Patient has bilateral plantar fasciitis requiring extra-depth orthopedic shoes with rigid shanks” gives the administrator something to work with. Ask your doctor to be specific.
The itemized receipt must include the merchant name, purchase date, product description, and amount paid. For orthopedic shoes, you also need documentation of the cost difference between the prescribed shoe and a standard equivalent. Some administrators have their own forms for this calculation. Sales tax and shipping on eligible online purchases are reimbursable too when documented.6FSAFEDS. Eligible Health Care FSA (HC FSA) Expenses The podiatrist visit to get the LMN is itself an FSA-eligible expense, so file that receipt as well.
Filing the Claim
Most administrators offer an online portal where you upload the LMN and receipt. If your FSA comes with a debit card, you may be able to use it directly at merchants whose systems automatically verify item eligibility at checkout, which draws from your FSA with no manual claim filing.
Pay out of pocket and file manually, and turnaround is usually fast. The federal employees’ FSA program processes most claims within one to two business days after receiving the documentation, with payment by direct deposit shortly after.7FSAFEDS. FAQs – How Long Will It Take To Receive Reimbursement? Private-employer administrators vary, but a week or less is typical when your paperwork is complete.
Using FSA Money Before It’s Gone
FSA dollars are use-it-or-lose-it. Any funds left at the end of the plan year are forfeited unless your employer offers one of two options.
The first is a carryover. If your plan allows it, you can roll up to $680 in unused funds from your 2026 plan year into 2027.8FSAFEDS. New 2026 Maximum Limit Updates The second is a grace period, which extends your spending window by two and a half months into the following year, giving you until March 15 to use the prior year’s balance. Employers offer one or the other, not both. Check with your benefits department to find out which applies.
If you have money sitting in your FSA and you’ve been putting off an orthopedic shoe purchase, schedule the podiatrist visit with enough runway to get the LMN and buy before your deadline.
If Your Claim Is Denied
Denials on footwear claims are common, and insufficient documentation is usually the reason. Before appealing, check whether the LMN was too vague, the cost-difference calculation was missing, or the receipt lacked detail. Resubmitting with better paperwork often solves it without a formal appeal.
If the denial stands, most FSA plans administered through employer group health plans fall under federal rules giving you at least 180 days from the denial notice to file a formal appeal.9eCFR. 29 CFR 2560.503-1 – Claims Procedure During the appeal, you’re entitled to see the documents the administrator relied on to deny the claim, which helps you pinpoint what was missing. When the disagreement is over medical necessity itself, a more detailed letter from your provider addressing the specific objection is usually the strongest response you can submit.