HSA and FSA for GLP-1 Medications: The Complete Guide for 2026

The question that can save you hundreds per month

If you have a Health Savings Account or Flexible Spending Account through your employer, you may be able to use pre-tax dollars to pay for GLP-1 medication — including compounded versions obtained through telehealth. This is a significant but underutilized strategy that can effectively reduce your medication costs by 20-40% depending on your tax bracket.

HSA vs FSA: the key differences

Both HSAs and FSAs allow you to use pre-tax money for qualified medical expenses, but they have different rules:

• HSA: Available if you have a high-deductible health plan. Funds roll over year to year with no expiration. You can invest unused funds. Contribution limits for 2026 are approximately $4,150 for individuals and $8,300 for families.
• FSA: Available through many employer plans regardless of deductible. Funds typically must be used within the plan year (some plans offer a grace period or limited carryover). Contribution limit is approximately $3,200 for 2026.
• Key difference for GLP-1: HSAs offer more flexibility because funds do not expire. FSAs require planning to use funds within the plan year — but can be ideal if you know you will be on GLP-1 treatment for the full year.

Are GLP-1 medications eligible expenses?

Yes — with important documentation requirements. The IRS considers prescription medications to be qualified medical expenses for both HSA and FSA reimbursement. This includes compounded medications when prescribed by a licensed provider for a qualifying medical condition. The key requirement: you must have a valid prescription from a licensed provider. Over-the-counter weight loss supplements are not eligible, but prescribed GLP-1 medication is.

The Letter of Medical Necessity

For FSA reimbursement in particular, some plan administrators may require a Letter of Medical Necessity from your provider. This is a document stating that the medication is medically necessary for the treatment of a diagnosed condition. For GLP-1 medications, the relevant diagnosis is typically obesity (BMI of 30 or higher) or overweight (BMI of 27 or higher) with at least one weight-related health condition.

The letter should include: your diagnosis, the specific medication prescribed, the dosing schedule, the provider's statement that the treatment is medically necessary, and the provider's signature and license information. Surfbound providers can provide appropriate documentation during your treatment.

Documentation requirements and record-keeping

The IRS requires you to keep records supporting HSA and FSA expenditures. For GLP-1 medications, maintain:

• Receipts or invoices from the pharmacy showing the medication name, date, and amount paid
• Your provider's prescription or treatment documentation
• The Letter of Medical Necessity if required by your plan administrator
• Explanation of Benefits documents if any portion went through insurance
• A log of dates and amounts for each reimbursement request

How to use HSA/FSA with Surfbound and similar telehealth platforms

Most telehealth platforms — including Surfbound — operate on a cash-pay model and do not directly bill insurance. However, you can typically submit your pharmacy receipts or program invoices for HSA or FSA reimbursement. The process:

• Pay for your medication or program with a personal credit card, debit card, or HSA debit card if accepted
• Save all receipts and documentation from the pharmacy and the telehealth platform
• Submit a reimbursement claim through your HSA or FSA portal with the receipts attached
• If denied, request the specific reason — it is often resolved by providing a Letter of Medical Necessity or more detailed documentation
• Alternatively, if your HSA provides a debit card, you may be able to pay the pharmacy directly using HSA funds at the point of purchase

Tax considerations

Using HSA or FSA funds for GLP-1 medication is not a tax deduction — it is using pre-tax money you have already set aside. The tax advantage is built in: you funded the account with pre-tax dollars, so every dollar you spend from it effectively gets a discount equal to your marginal tax rate. For someone in the 24% tax bracket, using HSA/FSA funds means the medication effectively costs 24% less than paying with after-tax dollars.

Importantly, you cannot double-dip — you cannot claim an HSA/FSA reimbursement and also deduct the same medical expense on your tax return.

Common pitfalls to avoid

• Assuming compounded medications are not eligible — IRS rules focus on whether the medication is prescribed, not whether it is FDA-approved. Compounded GLP-1 medications prescribed by a licensed provider are generally eligible.
• Failing to save documentation — HSA and FSA claims can be audited. Keep records for at least three years after filing the tax return for the year of the expense.
• Using FSA funds for a medication started late in the plan year — if you lose your job or change employers mid-year, unused FSA funds may be forfeited. Plan carefully.
• Not checking with your plan administrator — while IRS rules define what is eligible, individual plan administrators may have their own documentation requirements. Check your plan's specific rules.