Enrollment season is a payments deadline
We made the strategic case for pre-tax dollars in The Employer and HSA Channel: HSA and FSA rails lower the effective price of care without lowering your price. This post is the implementation layer, and it ships on September 1 for a reason.
Open enrollment runs September through November. That is when employees pick 2027 health plans and, critically, set FSA elections and HSA contribution intentions. FSA money is use-it-or-lose-it and must be elected in advance, so a patient who learns in October that your program is HSA and FSA friendly can fund next year's care with pre-tax dollars. A patient who learns in February can only shrug. The build has to be live, and marketed, before the elections lock.
Two framing notes before the details. Eligibility rules come from the IRS; interpretation comes from each patient's plan administrator, and administrators differ. Design for the strictest reviewer, and never present any of this as tax advice.
What is eligible, with what paperwork
| Program component | HSA/FSA status | What makes it clean |
|---|---|---|
| Provider visits and consults | Eligible as medical care | Itemized receipt with provider and date of service |
| Prescription medications, including GLP-1s | Eligible | Prescription on file, itemized receipt |
| Weight-management program fees | Eligible when treating a diagnosed condition, such as obesity | Letter of Medical Necessity plus receipts |
| Coaching and nutrition support tied to a diagnosed condition | Often eligible with documentation | LMN naming the service as part of treatment |
| Lab work ordered by a provider | Eligible | Itemized receipt |
| Supplements, general wellness add-ons, cosmetic services | Generally not eligible | Keep them out of the medical line entirely |
The pattern to internalize: prescriptions and provider services are eligible on their face, program fees are eligible when they treat a diagnosed condition, and lifestyle extras are not eligible no matter how adjacent they feel. Most reimbursement failures in telehealth are not rule failures. They are documentation failures: the patient was eligible, the expense was eligible, and the paperwork could not prove either.
The Letter of Medical Necessity you generate, not the patient
For anything beyond plain prescriptions and visits, administrators want a Letter of Medical Necessity: a provider-signed statement of the diagnosis, the recommended treatment or service, how it treats the condition, and the expected duration. Patients asked to go get one mostly do not, and the ones who try generate support tickets.
The fix is workflow placement. Generate the LMN at the point of care, as part of the provider's documentation when the treatment plan is created, and store it in the patient portal for one-tap download, alongside every receipt. When a patient's administrator asks for it in March, the answer is a link, not a scramble. Renewal matters too: LMNs are typically dated and time-bound, so tie regeneration to the care plan review rather than waiting for a denial to surface it.
Cards, declines, and substantiation
HSA and FSA debit cards run on ordinary card rails, but approval logic depends on how your merchant account is classified. Benefits cards generally auto-approve at merchants coded as healthcare providers, and get fussier where coding is ambiguous or where a cart mixes eligible and ineligible items. That is why the same patient's card works at one telehealth checkout and declines at another: it is usually a merchant-coding and cart-composition story, not a patient story.
Three operating rules follow. Get your processor setup and merchant category coding right for healthcare before you advertise card acceptance. Keep carts clean: a checkout that bundles an eligible consult with an ineligible supplement invites declines and reviews. And treat declines as a designed path, not an error state: the patient pays with a regular card, and your receipts make reimbursement trivial. Card acceptance is a convenience; substantiation is the actual product.
The receipt that survives a claims review
Manual reimbursement lives or dies on the receipt. A submittable itemized receipt shows patient name, provider or program name, date of service, a plain-language description of each service or item, the amount per line, and prescription indicators where relevant. A charge that reads "Membership, $199" fails review; the same charge itemized as a provider visit and a prescribed medication passes.
Make receipts self-service: automatically issued for every charge including renewals, stored permanently in the portal, re-downloadable without asking anyone. Every receipt request that reaches your support queue is a design failure, and February, when patients race FSA claim deadlines for the prior year, is when those failures arrive in bulk. The renewal-facing billing surfaces are covered in Billing UX for Telehealth.
Configure subscriptions so the eligible portion is clean
Subscriptions are where good programs get sloppy. One blended "all-inclusive membership" line is easy to sell and nearly impossible to substantiate. Structure the billing so the medical portion is legible: visits, medication, and labs as distinct line items, ineligible add-ons priced and listed separately, and every renewal invoice itemized exactly like the first. Refunds and proration should map back to specific line items too, because a partial refund against a blended charge contaminates the receipt trail for the whole period.
This is a configuration exercise, not a replatform: same price, same offer, cleaner lines. Do it once in September and every invoice for 2027 comes out audit-ready.
Marketing claims: the line between helpful and hazardous
Pre-tax eligibility is a real conversion lever during enrollment season, and it is easy to overclaim. The discipline:
- Say "you may be able to use HSA or FSA funds" and "we provide the documentation your administrator needs." Do not say "HSA approved," "guaranteed reimbursable," or blanket "HSA eligible" across a bundle containing ineligible items.
- Never present eligibility as tax advice, and point patients to their plan administrator for final answers.
- During open enrollment, market the timing itself: patients setting 2027 elections should know now that your program documents cleanly. That message belongs in the same Q4 plan as the rest of your seasonal demand work, laid out in Open Enrollment Is an Acquisition Season, and it lands especially well with the benefit-routed patients described in Employers Are Pointing Workers to DTC Telehealth.
The September checklist
- Audit every SKU and subscription for line-item cleanliness; split anything blended.
- Confirm processor and merchant-coding setup for healthcare card acceptance.
- Turn on automatic itemized receipts everywhere, including renewals, with portal re-download.
- Move LMN generation to the point of care and backfill for active patients who need one.
- Ship the patient-facing explainer page on using HSA and FSA funds with your program.
- Add the enrollment-season message to October and November campaigns, and brief support with approved language.
Six items, none of them a rebuild, all of them worth measurably more if they are live before elections lock than after.
FAQ
Are GLP-1 medications HSA and FSA eligible? Prescription medications, including prescribed GLP-1s, are qualified medical expenses, so they can generally be paid or reimbursed with HSA or FSA funds. The patient needs the prescription on file and an itemized receipt, and their plan administrator makes the final eligibility call.
What is a Letter of Medical Necessity and when do telehealth patients need one? An LMN is a provider-signed statement of the diagnosis, the recommended treatment, and its duration. Administrators typically require it for expenses that are only eligible when treating a condition, such as weight-management program fees or coaching, rather than for plain prescriptions and provider visits.
Why do HSA and FSA cards get declined at telehealth checkouts? Usually because of merchant coding or cart composition rather than the patient's funds: benefits cards approve most readily at merchants coded as healthcare providers with carts containing only eligible items. Well-built programs treat declines as a normal path by making itemized receipts easy to submit for reimbursement.
Why does open enrollment matter for telehealth payment operations? FSA elections for 2027 are set during open enrollment, September through November, and the money must be committed in advance. Patients who know before elections lock that a program accepts pre-tax dollars and documents cleanly can fund next year's care with them; patients who find out later cannot.