Most states waive sales tax on wheelchairs, walkers, prosthetics, hearing aids, and similar equipment, which can shave hundreds of dollars off a purchase in jurisdictions where combined state and local rates top 10%. Sales tax exemptions for mobility aids and assistive devices generally turn on three questions: does the item fall into a category the state recognizes as exempt, does your state require a prescription, and did you give the retailer the right paperwork at checkout.
What Kinds of Equipment Qualify
The Streamlined Sales and Use Tax Agreement, adopted by 24 member states and mirrored in many others, sorts exempt medical hardware into three groups.1Streamlined Sales Tax Governing Board. Medical Equipment Issue Paper Knowing which bucket your item falls in matters, because a device that fits none of them may not qualify even if it seems medical.
Mobility enhancing equipment is gear that helps a person move from place to place, works in a home or vehicle, and is not generally used by people with normal mobility. Canes, crutches, motorized carts, stair lifts, walkers, wheelchairs, and vehicle lift controls are the core examples. The vehicle itself and factory-standard features are not covered.
Durable medical equipment covers items that withstand repeated use, serve a medical purpose, are useless to a healthy person, and are not worn on or in the body. Oxygen concentrators, hospital beds, and nebulizers are typical. Medicare uses a nearly identical definition and adds that the equipment must be appropriate for home use and expected to last at least three years.2Medicare.gov. Durable Medical Equipment (DME) Coverage
Prosthetic devices are worn on or in the body and replace a missing part, correct a deformity or malfunction, or support a weak part of the body. Artificial limbs, braces, orthopedic supports, and hearing aids all sit here. Body contact is the dividing line: if you wear it, it is a prosthetic device rather than durable medical equipment.
Items Commonly Bought Tax-Free
- Manual and power wheelchairs, including parts and accessories
- Walkers and rollators, with or without seats
- Canes, crutches, quad canes, and replacement tips
- Prosthetic limbs, liners, and sockets
- Back, knee, and ankle-foot orthoses and similar braces
- Oxygen concentrators, portable tanks, tubing, and masks
- Stair lifts and porch lifts installed in a home
- Hearing aids, batteries, and repair components
- Home-use hospital beds and their replacement parts
General health products like thermometers, bandages, and bathroom scales usually do not qualify. The working test is whether the item serves a medical function that someone without an illness, injury, or disability would have no use for.
Repair Parts and Rentals
All three SSUTA categories include repair and replacement parts within the exempt definition.1Streamlined Sales Tax Governing Board. Medical Equipment Issue Paper A wheelchair battery, replacement tires, or a fresh prosthetic cushion carries the same tax-exempt status as the original device. Vendors do not always apply the exemption automatically for component orders, so it is worth asking.
Many states also extend the exemption to rentals and leases of qualifying equipment. The rules are not uniform, and some states treat a rental transaction differently than an outright purchase, so confirm the treatment with the supplier before signing.
Do You Need a Prescription
Whether you need a prescription depends on both the device and the state. Roughly two-thirds of states with a sales tax exempt medical devices only when they are prescribed by a licensed provider. About 15 states exempt qualifying devices whether or not they were prescribed, so you can walk in and buy the item off the shelf tax-free. A smaller group has targeted exemptions covering some devices but not others.
Everyday mobility aids like canes, crutches, and standard walkers are often exempt without any paperwork. Higher-cost or more complex equipment—power wheelchairs, custom orthotics, therapeutic appliances—generally requires a written prescription from a physician, podiatrist, chiropractor, or other licensed practitioner. Some states also want a separate letter of medical necessity for items that straddle the line between medical and consumer use, such as spa equipment prescribed for physical therapy.
When in doubt, get the prescription. Having one and not needing it costs nothing. Not having one when a retailer or an auditor asks costs you the full tax plus possible penalties.
Getting the Exemption Applied at Checkout
The straightforward version works like this: you hand the retailer your prescription (if the state requires one) and a completed exemption certificate, and the tax comes off the invoice before you pay. The retailer keeps the paperwork on file to justify not remitting tax on that sale.
The SSUTA Exemption Certificate is a standardized form accepted across all 24 member states, which helps when you are buying from a national or out-of-state retailer.3Streamlined Sales Tax Governing Board. Streamlined Sales Tax States outside the agreement use their own forms, available from the department of revenue. The certificate asks for your name and address, the vendor’s information, the exemption you are claiming, and a description of the item. You sign under penalty of perjury.
That perjury language is not decorative. Claiming an exemption you do not qualify for can trigger an audit, back taxes, interest, and penalties. Retailers must keep certificates on file for several years to satisfy state compliance reviews, so a false certificate creates a paper trail leading back to you.
For items that are automatically exempt without a prescription in your state, the retailer’s point-of-sale system should already exclude sales tax. If it does not, ask the vendor to remove the tax manually and document the exemption. Systems are sometimes miscoded for less common exempt items.
Online and Out-of-State Purchases
Buying from an online or out-of-state vendor does not eliminate the exemption, but it complicates it. Since the 2018 Supreme Court decision in South Dakota v. Wayfair, most remote sellers collect sales tax in every state where they meet economic activity thresholds. The retailer may charge tax at checkout even though your purchase qualifies for an exemption.
The fix is to give the retailer your exemption certificate before or at the time of purchase. Many large medical equipment sellers accept certificates online or by email. If the retailer will not process the exemption, you can pay the tax and file a refund claim with your state. If the retailer does not collect tax at all and your state imposes a use tax, the exemption that covers sales tax on qualifying medical equipment generally covers use tax as well.
Refunds When You Already Paid
If you paid sales tax on a qualifying device because the retailer could not process the exemption or you were missing documentation, you can file a refund claim with your state’s department of revenue. You will need the original receipt showing the tax paid, proof the item qualifies (usually the prescription or supporting medical documentation), and the state’s refund application.
Processing times vary. Some states handle claims in a few weeks; others take months. File promptly, because most states impose a deadline of one to three years from the purchase date. Miss it and the refund is gone.
If the claim is denied, states generally offer an administrative appeal through the revenue department, and from there you can escalate to state court. For a routine purchase the amounts rarely justify litigation, but for a custom power wheelchair or similar high-cost item, the savings can be worth pursuing.
Federal Deduction as a Second Path
If your state does not exempt the equipment, or the item does not qualify, the federal medical expense deduction is a separate route to some relief. The IRS lets you deduct unreimbursed medical expenses that exceed 7.5% of your adjusted gross income when you itemize on Schedule A.4Internal Revenue Service. Publication 502, Medical and Dental Expenses The deduction is most useful in a year with large medical outlays.
Publication 502 lists wheelchairs, artificial limbs, crutches, hearing aids, guide dogs and other service animals, and special telephone equipment for people who are deaf or hard of hearing among deductible expenses.4Internal Revenue Service. Publication 502, Medical and Dental Expenses Operating and maintaining a wheelchair also qualifies. If you paid state sales tax on any of these because your state offers no exemption, that tax is part of the total cost and can go into the deduction.