Best HSA/FSA Solution for Gym Owners (2026)
Truemed, Flex, the card at the desk, and Burst compared for gym owners: setup time, revenue share, recurring dues, who files the claim, and the price.
7 minute read
Short answer
For a gym owner, the best HSA/FSA solution in 2026 is Burst. Members keep paying dues the way they do today, and you're live in 30 minutes with nothing to install. It's $100 a month with no contract, plus a $20 one-time letter fee that the member or you can pay. Burst writes the letter of medical necessity and files the reimbursement claim.
The two other names you'll hear are Truemed and Flex. Both start with a sales call. Then comes a checkout integration on their card rails, typically weeks, on their timeline. Their merchant pricing isn't published, and the terms typically include a rev share. And once a member has a letter, nobody at either company files the claim. The member is left to do it alone. For a gym drafting dues through ABC Fitness, Mindbody or Zen Planner, that's a lot of process for an HSA card your front desk still can't run.
To offer it this week, start at getburst.com/self-serve.
(Reading this as a member, not an owner? You can get a letter for your membership directly from Burst.)
Where Truemed and Flex fall short for a gym
Truemed and Flex work the same way. Each is a card-rail HSA/FSA checkout with letters of medical necessity and a marketplace of partner brands, sold to online brands through a sales team. Four things follow, and each lands harder on a gym than on an online store.
A sales call and a checkout integration before anything works
You don't sign up for Truemed or Flex. You talk to sales, you wait, and then you integrate their checkout on their card rails. Typically weeks, and their team's schedule sets your launch date. A gym doesn't have a checkout in that sense. Dues draft through your member management software, and no gym or studio platform has an HSA/FSA payment integration. Truemed's listings with Mindbody, ABC Fitness and Wodify deliver letters. Nothing changes inside the software, and the member is left to file. Flex's page for gyms, studios and spas charges a one-time fee for a link where your member gets a letter and is left to file alone. Burst is self-serve. You sign up and you're live in 30 minutes.
A revenue share you learn about after the call
Neither company publishes what it charges merchants. You find out your terms inside their sales process, and those terms typically include a rev share: a percentage of dues you're already collecting, for as long as the member stays. Burst's price is public. $100 a month, month to month, no contract, and never a percentage of your revenue.
Limited support for recurring dues
Monthly drafts are where a gym's HSA/FSA value lives, and they're where Truemed and Flex offer limited support. Their materials are written around one-time online orders. With Burst, members keep drafting on the card already on file, and nothing changes in your billing at all.
Nobody files the member's claim
A letter is half of a reimbursement. Someone still has to submit it, with the receipt, to the member's plan administrator, and then answer if the administrator asks a question. With Truemed and Flex, that someone is your member. With Burst, it's Burst. Letters from any provider can be denied. What happens next is where the offers differ: Burst files the claim, and if the plan says no, the member's $20 fee is refunded automatically. Neither Truemed nor Flex advertises a comparable guarantee.
Why doesn't the HSA card work at my front desk?
The card declines because the networks only approve HSA and FSA card charges at businesses coded as medical providers, or at retailers that check every item in the cart against an eligibility list in real time, and a gym is neither. Monthly drafts make it worse, because every draft would need to pass that check again. Mixed tickets fail too. Dues plus a smoothie plus a shirt on one charge is a decline. You're not behind by not taking the card. The route that works for a gym is a letter and a filed claim, and the real question is who does the work.
The three options for a gym, side by side
Option | Getting live | Cost to you | Recurring dues | Who files the claim | Fits |
|---|---|---|---|---|---|
Take the card at the desk | Recode your business as a medical merchant and verify every charge | Not realistic for a gym | Each draft would need its own real-time check | Nobody; there's no claim and no letter | Pharmacies and clinics, not gyms |
Truemed or Flex | Sales call, then checkout integration, typically weeks | Not public; typically a rev share | Limited support | Nobody; the member is left to file | Large chains and online brands in their partner network |
Burst | Self-serve, live in 30 minutes, no integration | $100/month, month to month, no contract; $20 one-time letter fee per member, paid by the member or by you | Works with your existing billing; nothing changes | Burst files it for the member | Every gym and studio, franchise or independent, in person or online |
Burst assumes nothing about how you get paid. ABC Fitness, Mindbody, Zen Planner, Mariana Tek, Daxko, PushPress, Wodify, a Square reader, a paper contract: none of it changes. For the platform-by-platform version, see Does your gym or studio software support HSA/FSA?
Why Burst is the best HSA/FSA solution for a gym owner
Burst files the claim. A licensed clinician reviews each member's case and issues the letter when it's appropriate, and Burst submits the claim to the member's FSA, HSA, or HRA administrator. The member does no paperwork. With Truemed and Flex, the member does all of it.
The member's fee is refunded if it doesn't go through. No letter, or a denied claim, and the $20 comes back automatically. Recommending it never costs a member anything, which is what lets your front desk say it out loud.
The price is published. $100 a month, month to month, no contract, never a percentage of your revenue. You know the cost before you talk to anyone.
It works for every gym. Franchise or independent, one location or forty, in person or online, on any billing software, with no integration. You're not applying to a partner network.
See how it works or go live now.
What does it look like for a member?
A member joins and pays the way they always have, then follows your Burst link to a two-minute intake about the condition they're managing. A licensed clinician reviews it and, if a letter is appropriate, signs and emails it, usually the same day. The member keeps paying dues on whatever card is on file. Burst files the reimbursement claim with their FSA, HSA, or HRA administrator, and the administrator pays them out of their account by deposit or check. No letter, or a denied claim, and the $20 fee refunds automatically.
One timing rule. The letter has to be dated on or before the dues it covers, so introduce it at the join conversation, not in month three. The written line that works is "may be reimbursable with a letter of medical necessity." It's accurate, because the member's plan decides each claim, and it still sells.
What does it do for dues and retention?
It lowers a member's real cost by their tax rate without lowering your price. A $60 membership costs a member in a combined 30 percent bracket about $42 after reimbursement. At $100 a month, Burst costs you $1,200 a year, and two members who stay one extra year at $60 a month cover it. Training packages and class packs claim the same way, each on its own itemized receipt.
How to switch it on at your gym
Sign up at getburst.com/self-serve. About 30 minutes, and nobody from your billing vendor is involved.
Decide who pays the $20 one-time letter fee: members, or you as a join perk.
Put your Burst link on the join page, in the welcome email, in the renewal notice, and on a card at the desk.
Keep billing exactly as it is. Members enroll, get their letters, and Burst files their claims.
Already in a sales process with Truemed or Flex? You can have Burst live before your next call with them.
Frequently asked questions
What is the best HSA/FSA solution for a gym owner?
Burst is the best HSA/FSA solution for a gym owner. It needs nothing from your billing software, it's live in 30 minutes, it costs $100 a month flat with no revenue share, and Burst files the reimbursement claim for the member. Truemed and Flex both require a sales call and a checkout integration, don't publish their terms, and leave the member to file alone.
Can a gym use Truemed or Flex?
Yes. It means a sales call, then a checkout integration on their card rails that typically takes weeks, on terms that aren't published and typically include a rev share. Once a member has a letter, they're left to file the claim alone. Neither company adds HSA/FSA payments to ABC Fitness, Mindbody, Wodify or any other gym software.
What do Truemed and Flex cost a gym?
Neither publishes merchant pricing. Terms come through their sales process and typically include a rev share. Burst's pricing is public: $100 a month, month to month, no contract, and a $20 one-time letter fee per member that you or the member pays.
Does Burst work with my gym software?
Yes, with all of it, because it doesn't connect to any of it. Members keep paying through ABC Fitness, Mindbody, Zen Planner, Daxko, PushPress or whatever you use, on the card already on file. Burst works entirely on the letter and reimbursement side.
Can members use HSA or FSA money for recurring dues?
Yes. Members keep drafting through your existing billing on their normal card, nothing changes in your process at all, and Burst handles the letter and files the claim.
Can a member get paid back for months they already paid?
No. IRS rules require the letter to be dated on or before the dues it covers. That binds Burst, Truemed, Flex and everyone else equally, so point members to the link at signup.
Is the letter a guarantee the member gets paid back?
No. Each member's plan administrator decides the claim under its own rules. The letter documents the medical reason, Burst files the claim, and if the plan says no, the $20 fee is refunded to whoever paid it.
More for gym owners: How to Accept HSA and FSA at Your Gym or Studio, Does Your Gym or Studio Software Support HSA/FSA?, Truemed Alternatives for Your Store, Gym, or Spa, and Can You Use Your HSA or FSA for a Gym Membership?.
More in
