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Your Health Savings Account and Flexible Spending Account aren't just for doctor visits and prescriptions. With a Letter of Medical Necessity, a home sauna becomes a qualified medical expense under IRS Publication 502 — and you can pay with pre-tax dollars, saving 30–40% depending on your tax bracket.
Every sauna on this page is eligible for HSA/FSA purchase through our partnership with TrueMed. That means a $5,000 sauna could cost you as little as $3,000–$3,500 in after-tax dollars. No separate doctor's appointment required — TrueMed's licensed medical practitioners handle the Letter of Medical Necessity during checkout.
The process takes about three minutes and happens entirely at checkout. Add any sauna to your cart, select "TrueMed – Pay with HSA/FSA" as your payment method, and complete a short health assessment. TrueMed's medical team reviews your responses and, if you qualify, issues your Letter of Medical Necessity within 24–48 hours. You can pay directly with your HSA or FSA debit card, or pay with a regular credit card and reimburse yourself through your plan administrator afterward.
Not sure if you qualify? You can get pre-qualified through TrueMed before you shop — no commitment, no cost.
The IRS requires that HSA and FSA purchases be primarily for the prevention or treatment of a specific medical condition. Sauna therapy has peer-reviewed research supporting its use for a range of conditions, and the following are among the most commonly approved: cardiovascular conditions such as high blood pressure and congestive heart failure, chronic pain conditions including fibromyalgia and arthritis, musculoskeletal issues like rheumatoid arthritis and chronic back pain, respiratory conditions such as asthma and chronic bronchitis, mental health conditions including anxiety, depression, and chronic stress, skin conditions like psoriasis and eczema, and metabolic conditions such as type 2 diabetes and insulin resistance.
For a detailed breakdown of qualifying conditions and the clinical research behind each one, read our HSA & FSA qualifying conditions guide.
Different sauna types deliver heat differently, and your medical condition may determine which is the best fit. Infrared saunas operate at lower temperatures (120–150°F) and use infrared light to heat your body directly rather than the air. They're often recommended for chronic pain, fibromyalgia, arthritis, and cardiovascular support because the gentle, deep-penetrating heat is easier to tolerate for longer sessions. If you're new to sauna therapy or have a condition that makes high heat uncomfortable, infrared is typically the starting point your practitioner will recommend.
Traditional saunas reach higher temperatures (150–195°F) and provide the classic Finnish sauna experience with steam generated by pouring water over heated stones. Research on cardiovascular benefits — including the landmark Finnish sauna studies — was conducted primarily with traditional saunas. They're a strong choice for cardiovascular health, respiratory conditions, and stress reduction.
Hybrid saunas combine both traditional and infrared heating in a single unit, giving you the flexibility to use either mode or both simultaneously. If your Letter of Medical Necessity covers multiple conditions, a hybrid sauna gives you the most therapeutic versatility.
Looking for something specific? Browse by size, style, or placement to find the right fit for your space and therapeutic needs:
The savings depend on your federal and state tax bracket. HSA and FSA contributions are made with pre-tax dollars, so you're effectively avoiding income tax on the purchase amount. For someone in the 24% federal bracket with a 5% state rate, a $4,000 sauna purchased with HSA funds saves roughly $1,160. In higher brackets, the savings climb even further. Combine this with our 0% APR financing through Shop Pay and you can spread the remaining cost over 6–24 months with no interest.
For a full breakdown of sauna pricing across every category, check our 2026 sauna cost guide.
Technically, yes — any sauna can become HSA/FSA eligible with a valid Letter of Medical Necessity from a licensed healthcare provider. The LMN must tie the sauna to a specific diagnosed medical condition. TrueMed handles this documentation for you at checkout.
No problem. You can pay with a regular credit or debit card and then submit for reimbursement through your HSA/FSA plan administrator. TrueMed provides all the documentation you need.
The health assessment takes about 3 minutes. If you qualify, TrueMed's medical practitioners issue your Letter of Medical Necessity within 24–48 hours. You can complete your purchase immediately and receive the LMN afterward.
Most FSA plans operate on a "use it or lose it" basis — unspent funds typically expire at the end of your plan year. Some employers offer a grace period (up to 2.5 months) or allow a small carryover amount. If you have FSA funds approaching expiration, a sauna is one of the highest-value qualified medical expenses you can make.
Yes. Our cold plunges are also eligible through TrueMed using the same checkout process. Many customers use both a sauna and cold plunge as part of a contrast therapy routine.
Yes. Our red light therapy panels and red light therapy saunas qualify through the same TrueMed process. Learn more in our red light therapy HSA/FSA guide.
Every sauna ships free with scheduled delivery, and our Oregon-based team is available at (360) 233-2867 to help you choose the right sauna for your therapeutic needs. If you have questions about using your HSA or FSA, visit our HSA/FSA information page or reach out — we walk customers through this process every day.
Haven Of Heat does not provide medical, tax, or legal advice. This information is for educational purposes only. Always consult with your healthcare provider and tax professional regarding HSA/FSA eligibility for your specific situation.
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