Does FSA cover GLP-1 for weight loss?
A GLP-1 drug used for weight loss is FSA-eligible only when a physician prescribes it to treat a specific diagnosed disease — not for general weight management.
What flips the answer
- Covered when
A physician prescribes the GLP-1 to treat a diagnosed disease — obesity, diabetes, hypertension, or heart disease.
- Not covered when
It's used for general or cosmetic weight loss with no physician-diagnosed medical condition.
- Not covered when
It's for general weight management and your FSA administrator requires a letter of medical necessity you can't provide.
The IRS has a specific rule for weight loss: costs are qualified medical expenses only when they treat a specific disease diagnosed by a physician, such as obesity, diabetes, hypertension, or heart disease. Weight loss pursued to improve appearance or general health does not qualify.
GLP-1 medications (like semaglutide and tirzepatide) are prescription drugs, so when they're prescribed to treat a diagnosed condition, they fit the qualified-expense rule and can be paid from an FSA. The prescription and the diagnosis are what make the difference.
Where it breaks down is using a GLP-1 purely to lose weight without a physician-diagnosed disease behind it. In that case the expense fails the weight-loss test, and many FSA administrators will ask for a letter of medical necessity documenting the diagnosis before they reimburse.
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