Is Mouthwash FSA or HSA Eligible?

Short answer

Regular mouthwash isn't a qualified medical expense under IRS Publication 502 and can't be reimbursed from your FSA, HSA or HRA. However, prescription mouthwash such as chlorhexidine prescribed to treat a medical condition is reimbursable outright, with no letter needed.

The difference comes down to whether the IRS sees the product as a personal care item or a prescribed medicine. Over-the-counter mouthwash bought for general dental hygiene doesn't meet the medical expense standard. Prescription mouthwash prescribed by a dentist or doctor to treat a diagnosed condition qualifies.

Regular Mouthwash Is Not Reimbursable

Standard mouthwash purchased over the counter isn't a qualified medical expense. The IRS groups it with other personal care items: the "cost of a toothbrush and toothpaste is a nondeductible personal expense", and mouthwash falls in the same category. Personal hygiene products, even when they support oral health, aren't reimbursable from FSA, HSA or HRA accounts.

This holds regardless of the brand or type of over-the-counter mouthwash. Antiseptic rinses, whitening rinses, and breath-freshening mouthwashes all count as personal care products under IRS rules, not medical expenses.

Prescription Mouthwash Is Reimbursable Outright

If a dentist or doctor prescribes mouthwash to treat a diagnosed medical condition, the situation changes. Prescription mouthwash such as chlorhexidine (prescribed for gum disease, periodontal disease, or post-surgical mouth care) qualifies as a prescribed medicine and is reimbursable outright from your FSA, HSA or HRA.

The key difference is the prescription. When a clinician orders the product in writing to treat a specific mouth or gum condition, it crosses from personal care into medical treatment. Burst files the claim with your receipt and the prescription, and no letter of medical necessity is needed.

How to Buy and Claim

Buying mouthwash is straightforward. You can purchase it from any retailer (pharmacies, drugstores, online vendors, or your dentist's office) using any card you have. If it's prescribed, your dentist or doctor will include it in the prescription or a written order.

For a reimbursement claim, Burst files on your behalf using your receipt. Keep your receipt showing the product name, purchase date, and amount paid. If the mouthwash is prescribed, you may want to keep a copy of the prescription or clinician's note as well, in case your administrator asks for proof that it was medically necessary.

The Eligibility Breakdown

Related Dental Care Items

Mouthwash is one of many dental care products with varying eligibility rules. Here's how other common dental items stack up:

Explore the vision, dental and hearing hub to see all eligible dental and oral health expenses under FSA, HSA and HRA rules.

Getting it reimbursed with Burst

When the answer is 'with a letter', this is the letter. Request it from Burst in about two minutes, a licensed clinician reviews it, and it's typically in your inbox within 24 hours. $35 once. Burst then files the reimbursement claim with your FSA, HSA or HRA administrator, and the administrator pays you out of your account by deposit or check. If no letter is issued you pay nothing, and if the claim is denied you get the $35 back. One timing rule: the letter has to be dated on or before the purchase it covers, so request it first.

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Frequently asked questions

Can I use my FSA or HSA debit card to buy mouthwash?

For over-the-counter mouthwash, probably not. Most FSA and HSA debit cards don't automatically approve non-prescription personal care items. If you do pay with your card, your administrator may request a receipt to verify it was a qualified expense. Prescription mouthwash may be accepted by some debit card systems.

What counts as prescription mouthwash?

Prescription mouthwash is ordered in writing by your dentist or doctor to treat a diagnosed condition. Chlorhexidine is the most common example, typically prescribed for gum disease or after oral surgery. A prescription ensures the product is medically necessary, not just for general hygiene.

Do I need a letter of medical necessity for prescription mouthwash?

No. Prescription mouthwash is a prescribed medicine, so it's reimbursable outright from your FSA, HSA or HRA. A letter isn't required. Your receipt and prescription are sufficient proof.

Why is regular mouthwash not reimbursable?

The IRS classifies regular mouthwash as a personal care item, like a toothbrush or toothpaste. Personal hygiene products don't qualify as medical expenses, even if they support dental health. Only medically prescribed products count as qualified expenses.

Can I claim mouthwash if I have a gum condition?

Only if the mouthwash is prescribed by your dentist or doctor in writing. A diagnosed condition alone doesn't make over-the-counter mouthwash eligible. The product must be prescribed as treatment for the condition.

What if my administrator denies my mouthwash reimbursement?

For regular mouthwash, denial is expected because it's not a qualified expense. For prescription mouthwash, denials are rare. If your administrator pushes back, Burst writes the appeal.

Keep reading: Can you use an FSA or HSA for dental?, Toothbrush: FSA and HSA eligibility, Is toothpaste FSA or HSA eligible?, and all guides on this topic.

Sources

• IRS Publication 502 - Medical and Dental Expenses (personal use items like toothbrush and toothpaste, prescribed medicines and treatments, dental care expenses)

• IRS Publication 969 - Health Savings Accounts and Other Tax-Favored Health Plans (HSA eligibility and qualified medical expense rules)

• Healthcare.gov Glossary (FSA and HRA definitions and account rules)