How to get an itemized receipt for HSA/FSA reimbursement

Last updated: October 27, 2025

To receive an itemized receipt for HSA/FSA reimbursement, you must have selected "Flex | Pay with HSA/FSA" as your payment method during checkout. If you used this payment option, you should have automatically received an itemized receipt via email shortly after your purchase was completed.

If you can't find your receipt

If you used Flex to pay with your HSA/FSA but can't locate your receipt:

  1. Check your email inbox and spam/junk folders for emails from notifications@withflex.com

  2. Contact our support team at support@withflex.com and we can resend your itemized receipt

If you didn't use Flex checkout

Unfortunately, if you did not select "Flex | Pay with HSA/FSA" as your payment method at checkout, we cannot provide any documentation for your HSA/FSA claim since we did not process your transaction.

In this case, you have a few options:

  • Contact the merchant directly to see if they can provide a receipt that meets your HSA/FSA provider's requirements

  • Return your order and repurchase using the Flex checkout flow

  • Check with your HSA/FSA provider to see if the merchant's standard receipt is acceptable

What's included in the receipt

When you use Flex checkout, you'll receive:

  • An itemized receipt showing HSA/FSA eligible items

  • A Letter of Medical Necessity (when required)

  • Payment details including the last 4 digits of your card

These documents are sent automatically after successful checkout and can be used for reimbursement or audit purposes.