Are Saunas Tax Deductible?
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A sauna can be tax deductible, but only in narrow cases. If a physician recommends one in writing to treat or prevent a diagnosed medical condition, the IRS may let you count part of the cost as a medical expense on your return. For some home buyers, an HSA or FSA may be a simpler route, but it is not automatic: it needs a Letter of Medical Necessity, and your plan administrator decides.
The short answer
Are saunas tax deductible? Sometimes. A sauna is not deductible as a comfort or wellness purchase. It can qualify as a deductible medical expense only when a licensed provider recommends it in writing to treat a specific condition, such as chronic pain, a cardiovascular issue, or a diagnosed circulatory problem. Even then, two rules limit what you can claim. First, you can deduct medical costs only if you itemize on Schedule A, and only the portion above 7.5 percent of your adjusted gross income counts. Second, because a permanently installed sauna can raise your home value, the IRS treats it as a capital expense: you subtract any increase in property value from the cost, and only the remainder is deductible. Some buyers may find HSA or FSA reimbursement with a Letter of Medical Necessity simpler than the deduction, but it is not automatic and your plan administrator decides, so it pays to compare all three before you buy.
When does a sauna qualify as a medical expense?
The federal medical expense rules live in IRS Publication 502. The test is simple to state: was the cost paid mainly to prevent or treat a physical or mental condition? A sauna bought for relaxation, post-workout recovery, or general wellness does not pass that test. A sauna your doctor recommends in writing to manage a diagnosed condition can.
Common qualifying situations include a physician recommending regular heat therapy for chronic pain, arthritis, fibromyalgia, high blood pressure, or a circulatory condition. The key word is recommends. You need documentation from a licensed provider that ties the sauna to your treatment, not just a general belief that heat feels good. Keep that letter, your diagnosis records, and every receipt.
This article is educational information, not tax or medical advice. Tax rules change and every situation is different, so confirm your specific case with a CPA or tax professional before you file.
How the medical expense deduction actually works
Two thresholds decide how much, if anything, you can claim.
Itemizing and the 7.5 percent floor. You can deduct medical expenses only if you itemize on Schedule A instead of taking the standard deduction. You then deduct only the amount of total medical costs that is more than 7.5 percent of your adjusted gross income. If your AGI is 100,000 dollars, the first 7,500 dollars of medical spending is not deductible, and only what you spend above that counts. The 7.5 percent floor is a permanent part of the code and applies at every age.
The home-value (capital expense) rule. The IRS treats permanently installed equipment that improves your home as a capital expense. If the sauna increases your property value, you subtract that increase from the purchase and installation cost, and only the leftover is a medical expense. So if a 6,000 dollar sauna raises your home value by 2,000 dollars, up to 4,000 dollars may count. A freestanding or portable unit that does not raise home value is generally handled differently, so ask your tax professional how your specific model is classified. For a fuller picture of ownership costs, see our breakdown of what an infrared sauna really costs to own.
Sauna tax deduction vs HSA and FSA: which saves more?
For many buyers, a Health Savings Account or Flexible Spending Account is the better route. Both let you pay with pre-tax dollars, which can lower the effective cost by roughly 25 to 40 percent depending on your tax bracket, and neither requires you to clear the 7.5 percent AGI floor. The catch is the same as the deduction: you usually need a Letter of Medical Necessity from your provider showing the sauna treats a specific condition.
| Path | How you save | Key requirement | Best for |
|---|---|---|---|
| Schedule A medical deduction | Deduct qualifying cost above 7.5 percent of AGI | Doctor recommendation, itemizing, capital-expense math | High medical-spending years |
| HSA | Possible HSA reimbursement with a Letter of Medical Necessity | Letter of Medical Necessity | HSA holders on high-deductible plans |
| FSA | Possible FSA reimbursement with a Letter of Medical Necessity | Letter of Medical Necessity | FSA holders spending within the plan year |
Our HSA and FSA eligibility guide explains how the Letter of Medical Necessity works and what typically qualifies. If you would rather spread the cost, our financing options can pair with either tax strategy.
What documentation do you need?
Whichever path you use, the paperwork is similar:
- A Letter of Medical Necessity or written recommendation from a licensed provider that names your condition and the sauna as treatment.
- Your diagnosis and treatment records.
- Itemized receipts for the unit, delivery, and any installation.
- For the deduction, records showing any change in home value if the sauna is permanently installed.
Buying from an authorized retailer helps here, because you receive itemized invoices, model documentation, and warranty records that support your claim. Restore Suite provides clean itemized receipts and real human support if your accountant needs product details.
Does the same apply to cold plunges and other recovery equipment?
The IRS test is the same for a cold plunge tub, an infrared cabin, or a traditional sauna: it must be recommended to treat a condition, not bought for general wellness. Cold water therapy is newer in the research, so a clear provider recommendation matters even more. If you are building a recovery setup with both heat and cold, document each piece separately and keep the receipts together.
Related reading: Are Saunas HSA/FSA Eligible? What a Letter of Medical Necessity Does
Frequently asked questions
Can I write off a sauna on my taxes without a doctor's note?
No. Without a written recommendation from a licensed provider that ties the sauna to a diagnosed condition, the IRS treats it as a personal purchase, and personal purchases are not deductible.
Are infrared saunas treated differently from traditional saunas for taxes?
No. The IRS looks at the medical purpose, not the heat type. Whether the unit is infrared, traditional, or hybrid, the same recommendation and documentation rules apply.
Is it easier to use an HSA or FSA than to take the deduction?
For most buyers, yes. If your plan approves reimbursement with a Letter of Medical Necessity, HSA and FSA funds are pre-tax and are not subject to the 7.5 percent AGI floor, so you do not need to itemize. You still need a Letter of Medical Necessity from your provider.
When you are ready to compare models, browse our infrared saunas for sale to match a unit to your space and budget, then use the HSA and FSA guide and financing options above to plan the purchase. Have a question about the receipts or specs your accountant needs? Contact our team and we will help.
Written by Logan McClure, founder of Restore Suite. Every guide is researched using peer-reviewed studies, recognized medical sources, and manufacturer specifications. This article is educational and is not medical advice. Learn about our editorial standards or contact our team.
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