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Pay with HSA/FSA

Maximize your pre-tax dollars

HSA/FSA payments with Flex

Flex makes it easy for qualifying customers* to use their HSA/FSA at checkout with pre-tax dollars. Just select Flex when you pay.

  1. Checkout screen with the "Pay another way" option
    Select “Pay another way” or checkout as a guest.
  2. Payment selector with "Flex - Pay with HSA/FSA" selected
    Select the “Flex – Pay with HSA/FSA” option.
  3. Flex eligibility question at checkout
    Confirm your eligibility.
  4. HSA/FSA card number field
    Enter your HSA/FSA card details.

HSA/FSA Frequently Asked Questions

Qualifying customers can. Whole30 works with Flex so qualifying customers can pay with their HSA or FSA card. Because that money is set aside pre-tax, customers can save an average of 30%* compared to paying with a regular card. Just choose the “Flex – Pay with HSA/FSA” option at checkout. If you don’t have your HSA/FSA card handy, you can pay with a credit or debit card and submit for reimbursement later, or split your purchase if you don’t have enough funds.

* Savings are based on the tax bracket of the individual. Examples are illustrative only; consult a professional advisor or visit fsafeds.gov/support/savingscalculators.

An HSA (Health Savings Account) and an FSA (Flexible Spending Account) both let you set aside pre-tax money for qualified health expenses, and you can use them to pay for qualified purchases with pre-tax dollars. The main difference is that an HSA is yours for life, rolls over every year, and pairs with a high-deductible health plan, while an FSA is employer-owned and usually has a year-end “use-it-or-lose-it” deadline. Either way, you can use the card the same way to check out with Flex.

Flex is available for eligible customers; HSA/FSA savings vary based on individual circumstances and eligibility. Learn more at withflex.com/disclosures.

Add items to your cart and proceed to checkout. Select “Flex – Pay with HSA/FSA” as your payment method, enter your HSA or FSA debit card, and check out as usual. If you don’t see the Flex option, you may be in Shop Pay, so choose “check out as guest” to see all payment methods.

It depends on the account. HSA funds roll over indefinitely, so they’re yours to keep. FSA funds often follow “use-it-or-lose-it” rules and may expire at year-end or after a short grace period, so it’s worth using them before your deadline.

A Letter of Medical Necessity (LMN) is documentation from a licensed provider confirming that a product helps treat or manage a specific medical condition. The IRS requires one to use HSA/FSA funds on certain “dual-purpose” items. With Flex, you don’t have to track one down: we facilitate a chat-based telehealth consultation at checkout that is reviewed by a licensed clinician. If approved, Flex will provide your Letter of Medical Necessity for your records.

Flex facilitates a chat-based consultation directly at checkout. A licensed provider reviews your responses, and if approved, you will receive a Letter of Medical Necessity for your records. You can view your documentation in the Flex Consumer Portal.

Learn more about how Flex protects your information.

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Whole30 Experiences

Find the Whole30 support that fits you

From The Guided Reset course to daily text support with The Daily Boost, choose the program that keeps you motivated and on track. Qualifying customers* can pay with their HSA or FSA through Flex at checkout.

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