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The HSA/FSA Intelligence Hub

Expert guidance on qualification, compliance, and merchant integration strategies.

HSA/FSA FundamentalsMerchant IntegrationCompliance & RegulationProduct Eligibility
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What Is a Letter of Medical Necessity and Why It Matters

A Letter of Medical Necessity is the key that unlocks HSA/FSA reimbursement for dual-use products. Here's what every merchant and consumer needs to know.

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HSA vs FSA — A Practical Guide for Merchants

Combined HSA/FSA balances exceed $150B. Understand the differences and why both represent incremental revenue channels for your business.

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IRS Section 213 — What Qualifies as a Medical Expense

The legal foundation for all HSA/FSA spending. Learn what's automatically eligible, what's dual-use, and how medical necessity bridges the gap.

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5 Product Categories Merchants Should Enable for HSA/FSA

Fitness equipment, sleep devices, supplements, health tech, and phototherapy — the high-impact categories that drive HSA/FSA revenue.

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How to Integrate HSA/FSA Checkout in Under a Week

Day-by-day guide: sign up, embed the widget, configure webhooks, test, and go live. From zero to accepting HSA/FSA in 5 days.

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