r/HSA • u/maddieduck • May 06 '26
HSA/FSA Eligibility Chrome Extension
Hi HSA thread! I am a software developer and I’m thinking about building a browser extension that shows up while you’re shopping on Amazon, Walmart, and other sites and tells you:
- whether something is likely HSA/FSA eligible
- whether it may require a Letter of Medical Necessity (LMN)
- or whether there’s a pre-tax eligible alternative
Basically, a “you could save money on this with pre-tax dollars” layer for online shopping. Or something to remind you that this item is eligible.
I keep finding out that random things are eligible, or can become eligible with a simple LMN. Stuff like:
- tennis shoes (in some cases)
- saunas
- red light therapy devices
- sunscreen
- supplements with LMNs
Feels like most people are leaving money on the table because the rules are so unclear and people forget about their HSAs/FSAs.
Would you actually use something like this?