Federal law ends daylight saving time on the first Sunday of November. In 2026, that was November 1. Clock time for sunset jumped an hour earlier overnight.
Shopping for a light therapy box with HSA or FSA money? The question is simple. Does a SAD lamp count?
The honest answer: only when it treats a diagnosed condition. A lamp bought to feel better in a dark winter does not qualify. The same lamp, recommended by a clinician for diagnosed seasonal affective disorder, can. The paperwork is what separates the two.
What NIMH Says About SAD and Light Therapy
The clinical facts here come from the National Institute of Mental Health (NIMH). It calls SAD "a type of depression characterized by a recurrent seasonal pattern."
On treatment, NIMH says this:
"Since the 1980s, light therapy has been a mainstay for treating winter-pattern SAD."
NIMH also notes a caution for people with certain eye conditions or medications. They "may need to use alternative treatments or use light therapy under medical supervision."
That is the full extent of the clinical claims in this post. Whether you have SAD is a question for a clinician. Whether the lamp is a tax-free purchase is a question about documentation.
What IRS Publication 502 Says
Publication 502 starts with a definition. Medical expenses are "the costs of diagnosis, cure, mitigation, treatment, or prevention of disease."
They also include "the costs of equipment, supplies, and diagnostic devices needed for these purposes."
Then it draws the line that matters for a SAD lamp:
"Medical care expenses must be primarily to alleviate or prevent a physical or mental disability or illness."
And right after it:
"They don't include expenses that are merely beneficial to general health, such as vitamins or a vacation."
Publication 502 never names light therapy or SAD lamps. Neither "light therapy" nor "lamp" appears in its text as of October 31, 2026. So the lamp falls under the general test above.
Publication 969 ties HSA spending to the same definition. It defines qualified medical expenses as amounts paid for "medical care" under Code section 213(d).
The Same Lamp, Two Answers
| Situation | Primary purpose | Result |
|---|---|---|
| Bought because winter feels gloomy | General well-being | Not a qualified medical expense |
| Clinician diagnosed SAD and recommended a light box | Treating a diagnosed condition | Can qualify, with documentation |
The lamp is identical in both rows. The diagnosis and the clinician's recommendation change the answer.
Mood and energy marketing on the box does not settle anything. Publication 502 asks about the primary purpose of your purchase. It does not ask what the seller wrote on the packaging.
HSA vs FSA: Who Checks the Claim
The two accounts handle this differently.
An FSA administrator reviews claims before paying. It can ask for a letter of medical necessity. It can deny the claim without one.
An HSA custodian does not approve each purchase. You decide the expense qualifies, and you keep the proof. The rule in Publication 969: "You must keep records sufficient to show that" distributions paid qualified medical expenses.
The stakes are real on the HSA side. Publication 969 sets "an additional 20% tax" on distributions not used for qualified medical expenses. That extra tax does not apply after you are disabled, reach age 65, or die.
What Published Eligibility Lists Say
Two lists, checked on October 31, 2026:
- ●FSAFEDS, the federal employee FSA program, lists phototherapy for treatment of a medical condition. It is eligible only with extra documentation from your doctor, plus a detailed receipt.
- ●Lively covers HSAs, FSAs, and HRAs on one page. Lively excludes limited-purpose and dependent care FSAs. Its examples are eczema, psoriasis, and vitiligo, not SAD. Its entry reads: "Light therapy for the treatment of a medical condition is eligible for reimbursement."
One honest caveat on FSAFEDS. The fsafeds.gov site blocked a direct page check, so this entry was read through search results. Indexed copies disagree on the document. One asks for a letter of medical necessity, and one asks for a prescription.
Check the live FSAFEDS entry before you file.
Neither list is your plan. If you have an FSA, your own administrator's list decides your claim.
Store Labels Are Not IRS Rulings
Vitality Medical sells light boxes on a SAD light page. Every product there carries an "FSA & HSA Eligible" label. That was checked live on October 31, 2026.
The page lists the TheraLite Mood and Energy Enhancing Light at $51.08. It lists the Northern Light Technologies BOXelite Desk Lamp at $250.31.
The page shows no conditions next to that label. A retailer's label is a marketing call. It does not change the Publication 502 test, and it does not replace a letter.
The same goes for a card that swipes at checkout. A successful swipe means the merchant accepted the card. It does not mean the IRS agrees.
What the Letter of Medical Necessity Should Say
FSAFEDS publishes the clearest checklist found for this post, read through search results. Its FAQ says your doctor's certification must state three things:
- ●Your specific medical condition
- ●A description of the recommended treatment
- ●The length of treatment required
Its letter form also asks for frequency and dosage, patient details, and the provider's name, signature, and date. For a chronic condition, the form allows "lifetime" as the duration. If treatment runs past the period on the letter, FSAFEDS wants a new one.
For a SAD lamp, the letter should name the diagnosis. It should name a light therapy box as the recommended treatment. It should give a time period. A hypothetical example: "light therapy box, October 2026 through March 2027."
Get the letter before you buy. A letter dated before the purchase ties the lamp to the diagnosis on the day you paid.
What the Receipt Needs to Show
FSAFEDS asks for a detailed receipt with the letter. It also says credit card receipts do not meet its documentation requirements.
An itemized receipt or order confirmation for a SAD lamp should show:
| Field | Why it matters |
|---|---|
| Purchase date | Falls inside the period on your letter |
| Seller name | Identifies where you bought it |
| Product name | Shows the item was a light therapy box |
| Amount paid | The number you reimburse |
A bank statement line shows a merchant and a total. It does not show what you bought. Save the order confirmation instead.
How to Pay
Two options work for an HSA:
- ●Swipe the HSA card at checkout. Keep the receipt and the letter anyway.
- ●Pay with another card. Reimburse yourself from the HSA later, using the same two documents.
For an FSA, submit the claim to your administrator with the letter attached. Check your plan's 2026 claim deadline before you wait.
The Short Version
| Question | Answer |
|---|---|
| Is a SAD lamp automatically HSA or FSA eligible? | No. Publication 502 never names it. |
| When can it qualify? | When it treats a diagnosed condition, such as SAD |
| What proof do you need? | A letter of medical necessity and an itemized receipt |
| Does a store's "FSA & HSA Eligible" label count? | No. It is the retailer's label, not the IRS rule. |
| Limited-purpose FSA? | Lively says light therapy is not eligible |
The letter and the receipt belong together. Tripl lets you attach a letter of medical necessity to the expense it supports. Both documents stay with the lamp purchase they prove.
Related Reading
- ●Letter of Medical Necessity (LMN): What It Is and How to Get One
- ●Is Red Light Therapy FSA or HSA Eligible? The Honest Gray Zone
- ●You Can Use Your HSA for Therapy. And a Lot More.
- ●Is Therapy and Counseling HSA-Eligible?
This is educational content, not financial or tax advice. Consult a qualified professional before making decisions about your HSA.