Common HSA/FSA FAQs

Using your HSA or FSA for your wellness journey might feel a little unfamiliar - but it doesn’t have to be. We’ve answered a few of our most frequently asked questions to help you understand how it works, what’s eligible, and how to make the most of your benefits with ease.

What is an HSA or FSA?

An HSA (Health Savings Account) or FSA (Flexible Spending Account) lets you use pre-tax dollars to pay for eligible health and medical expenses.

Why should I use my HSA or FSA?

Using HSA or FSA funds means you’re paying for eligible health expenses with pre-tax money, which can help you save overall. Depending on your plan, HSA funds may also roll over and grow over time.

Who is eligible to use an HSA or FSA?

Eligibility for an HSA or FSA depends on your employer, health insurance plan, and location. We recommend checking with your employer or account provider to confirm your eligibility.

For product eligibility, customers can use HSA/FSA funds if they have one of the qualifying conditions listed during checkout.

Are there any limitations on using HSA or FSA funds?

Eligible products can be purchased more than once. However, limits may apply based on your HSA/FSA provider, such as account balance limits, daily spending caps, or other bank-specific rules.

Which products are HSA/FSA eligible?

Eligible products are clearly shown during checkout. Some products require a Letter of Medical Necessity, which is completed as part of the checkout process through Flex.

How does checkout work when paying with HSA or FSA?

At checkout, select Pay with Flex as your payment method. You’ll be guided through a short medical questionnaire and then redirected back to our site to complete your purchase.

What if my HSA/FSA claim is denied?

HSA/FSA rules vary by provider, employer, and location. If your claim is denied or you have questions, you can contact support@withflex.com for assistance.

Still have questions or want to explore the details further? Visit our Payment Options article here to learn more and see how to make the most of your HSA/FSA benefits.