Flex integrates with WooCommerce to enable merchants to accept Health Savings Account (HSA) and Flexible Spending Account (FSA) payments. Our plugin helps you tap into the growing $150 billion HSA/FSA market and makes it easy to offer compliant, seamless payment options to your customers.
Features:
- Accept HSA/FSA payments directly in your WooCommerce checkout flow
- Product sync and eligibility assistance
- IIAS support for products deemed 「always eligible」
- Letter of Medical Necessity (LOMN) directly in checkout for products deemed 「dual use」
Flex partners have seen:
- 20% increase in average order volume
- 17% increase in revenue
- Access to a $150 billion and growing HSA/FSA market
How to Get Started:
Visit withflex.com to learn more or contact us at hello@withflex.com to get started.





