HSA/FSA Payments with flex





Subscribe Now, Get Reimbursed Later
- Use a standard payment method at checkout
- Select the ‘Get reimbursed’ from the thank you page
- Receive a Letter of Medical Necessity to submit your claim
Frequently Asked Questions
Flex has partnered with Oransi to enable consumers to use their HSA/FSA funds. You can think of a Flex as an alternative payment method, similar to Affirm, Klarna, etc.
To use your HSA or FSA debit card, add products to your cart as usual. At checkout, select “Flex | Pay with HSA/FSA” as your payment option, enter your HSA or FSA debit card, and complete your checkout as usual. If you don’t see “Flex | Pay with HSA/FSA,” you may be in Shop Pay. Select “checkout as guest” to view more payment options.
If you don’t have your HSA or FSA card handy, still select “Flex | Pay with HSA/FSA” as your payment method. Enter your credit card information, and Flex will email you an itemized receipt to submit for reimbursement.
HSA/FSA cards are debit cards, and the most common reason for declines is insufficient funds. Reach out to your HSA/FSA administrator to confirm your balance.
No, unfortunately, this isn’t a supported feature right now. If there are insufficient funds in a single HSA or FSA account, you can instead enter a credit card on the Flex checkout page. You will receive an itemized receipt and/or Letter of Medical Necessity from Flex, which you can submit for reimbursement.
Some products require documentation from a licensed healthcare provider stating that the item is necessary to treat or manage a specific medical condition. If the product requires a Letter of Medical Necessity (LOMN), Flex facilitates a chat-based consultation that generates the Letter in real time.
