What should I know about using my FSA or HSA benefits at different retailers?

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You can use an HSA card at any retailer that supports eligible health purchases. HSA eligibility depends on what the IRS defines as a qualified medical expense--not a retailer's branding. When using an HSA card at checkout, some items will auto-approve, while others will require documentation or manual reimbursement.

Where the HSA Card Works (Retailer Types & What’s Eligible)

Retailer TypeCommon Eligible ItemsHow Checkout WorksNotes
Pharmacies & DrugstoresOver-the-counter (OTC) medications, first aid items, menstrual care, and thermometersAuto-approve at checkoutWatch for mixed carts; keep itemized receipts
Big-box/Club StoresPharmacy items, vision center, OTC medicationsAuto-approve for flagged SKUsNon-eligible items may decline; split payments
Online MarketplacesFSH/HSA-eligible storefronts, medical devicesAuto-approve for tagged itemsSave the product page and receipt PDF
Medical Supply StoresBraces, CPAP supplies, blood pressure cuffs, mobility aidsAuto-approveLarge devices may need a prescription or letter of medical necessity (LMN) on file
Optical/Vision RetailersExams, glasses, contacts, solutionAuto-approveSunglasses require a prescription to qualify
Dental Providers/ ShopsCleanings, fillings, night guardsProvider billingCustom guards may need documentation
Hearing CentersExams, hearing aids, batteriesProvider billingTrial/return policies vary—keep paperwork
Fitness/Health (conditional)Certain programs and devicesUsually manual reimbursementOften LMN-required

Eligible Purchases: What You Can Usually Buy With an HSA Card

Items are considered HSA-eligible based on the IRS definition of a qualified medical expense. IRS Publication 502 outlines what counts as a qualified medical expense and includes a complete reference list of what's eligible.

Some HSA-eligible transactions will be pre-approved at checkout, like co-pays and deductibles, prescriptions, and over-the-counter medications and supplies. Other health and wellness items are HSA-eligible but will require documentation, such as medical devices, therapy supplies, and vision, dental, and hearing items.

Some items may be HSA-eligible with appropriate documentation–like a letter of medical necessity (LMN)–when used to treat a specific condition. For example, these items could include fitness equipment and memberships, posture and pain-relief products, sleep-tracking devices, and even saunas or cold plunges when deemed medically necessary.

Items That Usually Aren’t Eligible (Expect Declines)

Cosmetics, general skincare products, vitamins without medical documentation, general tech gadgets, or even paying for gym fees without an LMN will cause your HSA card to decline, as these purchases aren’t usually eligible.

If you’re paying for several different products in one purchase (i.e., mixing HSA-eligible items and non-eligible items at checkout), split the order and pay in separate transactions to avoid a full decline.

How Checkout Works

Many HSA-eligible products, co-pays, and over-the-counter medications are typically pre-approved at checkout. Specific retailers and pharmacies are designated as approved healthcare merchants based on their merchant category code (MCC). So, HSA card purchases made at these locations will be pre-approved. Products with an eligible SKU (inventory codes) may also be pre-approved at checkout.

HSA cards work just like a debit card (i.e., insert the chip into the card reader, swipe the card, etc.). So you must ensure you have enough funds in your account to complete the transaction.

When shopping online with your HSA card, use HSA-eligible filters on the retailer’s site to search through eligible items and double-check labels. Always download and keep itemized invoices for your records. Remember to split your payments for carts with a mix of HSA-eligible and non-eligible items.

Returns, Exchanges, and Reimbursements

You can make returns and exchanges with items purchased on your HSA card. Always keep your original itemized receipts and make sure refunds are returned to the HSA card. If you paid out-of-pocket for an item that’s HSA-eligible, submit the receipt and LMN, if required, to your HSA/FSA plan administrator for reimbursement.

HSA vs FSA at Retailers (Shopping Differences)

FeatureHSAHealth FSA
Ownership (you vs your employer)YouEmployer
Rollover rulesUnused funds stay indefinitely and grow tax-freeUnused funds stay indefinitely and grow tax-freeLose unused funds at the end of the plan year
Card declines on mixed cartsYes (some merchants might offer split payments)Yes (some merchants might offer split payments)
After a job changeStays with you if you switch jobsDoesn’t transfer to a new employer

Documentation You Need (So Claims Don’t Get Denied)

Always keep an itemized receipt that shows the merchant, product, dollar amount, and date of purchase with your HSA card. For online purchases, save PDFs of the receipt or invoice. Always keep a copy of the prescription or LMN in case your insurance and HSA provider asks for supporting documentation. Store receipts and records for tax season. You may be asked to match bank statements to the receipts on file, so keep them organized for easy retrieval.

Common Pitfalls to Avoid

  • Don’t assume a product is eligible based on a store’s branding—always go by the IRS regulations and eligibility requirements.
  • Avoid one-cart checkouts. Separate non-eligible items from HSA-eligible items to prevent your card from declining.
  • Don’t forget to get an LMN when purchasing “potentially eligible” items with your HSA.
  • Digital receipts from online marketplaces are just as important to keep as physical copies from in-person retailers.

How It Works Using Your HSA/FSA with Truemed

Truemed* simplifies the process so you can maximize your HSA benefits. After you fill out a health intake at checkout in the Truemed marketplace, an independent licensed practitioner reviews it and may issue an LMN if appropriate.

Truemed partners with merchants and retailers to give eligible customers access to shop hundreds of products, paying with your HSA card or getting reimbursed later. Truemed helps you organize your documentation to make eligible purchases.

*Truemed is for qualified customers. See terms at truemed.com/disclosures.

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Key Takeaways
  • Use an HSA card: at any retailer that supports eligible health purchases. Always keep receipts for your records.

  • Eligible items: auto-approve at checkout or require supporting documentation (like an LMN) for reimbursement.

  • Eligibility: always based on IRS regulations, not based on a store’s branding.

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Editorial Standards
At True Medicine, Inc., we believe better health starts with trusted information. Our mission is to empower readers with accurate and accessible content grounded in peer-reviewed research, expert insight, and clinical guidance to make smarter health decisions. Every article is written or reviewed by qualified professionals and updated regularly to reflect the latest evidence. For more details on our rigorous editorial process, see here.