If your business needs to accept HSA or FSA cards, reach out to Stripe support to ensure that your account is properly configured to accept these card types.
HSA and FSA cards require that your business have a special classification, called a Merchant Category Code (MCC), set so that the card companies know that your products and services are directly related to a patient’s medical needs.
Enabling an account to accept HSA or FSA payments does not guarantee a card will not be declined. Card issuers are still at liberty to authorize or decline any payment as they would with any other type of credit card.