HSA and FSA for GLP-1 Prescriptions: The 2026 Tax-Advantaged Playbook

HSA and FSA funds can cover GLP-1 prescriptions when the medication is prescribed for a diagnosed medical condition (obesity, type 2 diabetes, cardiovascular disease). The IRS requires a Letter of Medical Necessity (LMN) from your prescriber to substantiate the expense.

What You Need to Know

Most telehealth providers generate LMNs on request. The tax savings are substantial: a 28% marginal tax rate on $3,000/year in GLP-1 costs saves $840 annually. For FSA accounts, set your contribution during open enrollment to cover expected annual GLP-1 costs — FSA funds expire if unused. HSA funds roll over indefinitely, making them ideal for ongoing treatment.

The Details

Virtually all GLP-1 providers accept HSA/FSA debit cards as payment. The practical step: ask your provider for an LMN at the start of treatment, save all receipts, and keep documentation in case of IRS audit..

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