There’s a spike in eyewear demand every December that has nothing to do with holiday gifting. It’s driven by a deadline: money in a Flexible Spending Account that disappears if it isn’t spent.
For 2026, employees could contribute up to $3,400 to a health FSA. Depending on the employer’s plan, only a limited amount carries into the next year — up to $680 — and some plans allow no carryover at all, or offer a short grace period instead. Whatever the plan permits, the pattern is the same: a large number of people reach mid-December holding funds that are about to evaporate.
Prescription eyeglasses and contact lenses are eligible expenses. So are prescription sunglasses. That makes eyewear one of the most natural places for that money to land — and it makes Q4 the highest-intent shopping window your store gets all year.
The catch is that this buyer behaves differently from your normal customer, and most stores aren’t configured for them.
Who the FSA buyer actually is
Three characteristics, all of which have design implications:
They’re spending money they’ve already lost. The funds are gone if unused, which means price sensitivity drops sharply. An FSA customer will take the premium lens coating and the anti-reflective upgrade in a way a cash customer often won’t. This is your highest average-order-value shopper of the year.
They’re on a hard deadline and they know it. Nobody browses in the last week of December. They arrive intending to complete a purchase today, and any friction sends them to whoever makes it easier.
Many of them are buying eyewear online for the first time. They’re not your loyal customer. They’re someone whose HR reminder email just landed, who has never uploaded a prescription to a website before and isn’t sure they can.
Put those together and you get a shopper with high intent, high budget, low patience, and low familiarity. That combination rewards a smooth prescription flow more than any other customer type you serve.
This year there is a second buyer, and a wider pool of them
Most Q4 benefit marketing is written as “FSA/HSA” — one slash, one campaign, one deadline. That was always a bit lazy. In 2026 it is actively costing money, because the HSA half of that slash changed on 1 January.
The One Big Beautiful Bill made three changes to health savings accounts, and the IRS set out how they work in Notice 2026-05:
- Bronze and catastrophic Exchange plans are treated as high-deductible health plans for months beginning after 31 December 2025, even where they do not meet the ordinary deductible and out-of-pocket tests. Note the detail that most summaries skip: the plan does not have to be bought on the Exchange. If the same plan is available through an Exchange, an off-Exchange enrollee gets the same treatment. That is a materially larger group than “marketplace shoppers”.
- Qualifying direct primary care arrangements stopped disqualifying someone from contributing, from the same date, and the periodic fees can be paid from an HSA. There is a ceiling: the notice puts it at $150 a month, or $300 where the arrangement covers more than one individual, indexed for inflation after 2026. Above that, the arrangement loses its status and contribution eligibility goes with it — though the fees themselves remain reimbursable.
- The telehealth safe harbor is permanent — remote care before the deductible no longer breaks HSA eligibility. Watch the date on this one: it runs retroactively to plan years beginning after 31 December 2024, not 2026.
You do not need to care about any of the tax mechanics. You need to care about one consequence: the population eligible to hold an HSA going into this Q4 is wider than it was going into the last one, and prescription eyewear is an eligible expense for every one of them. To be precise about what that is and isn’t: eligibility expanded on 1 January, which is a fact. How many people actually opened an account is an enrollment figure nobody has published yet. Plan for a larger audience; don’t quote a number.
Here is why that is a different campaign rather than a bigger one.
HSA money does not expire. It rolls over indefinitely and it belongs to the accountholder, not the employer. A December deadline email is not just irrelevant to an HSA holder — it is faintly insulting, because they know their money is not going anywhere. Urgency is the wrong lever and it will underperform.
HSA balances are usually larger and older. These are accumulated funds, often invested, often held by someone who is deliberately not spending them. The purchase they will make is not “spend $312 before it vanishes”. It is “I have been putting off progressives for two years.”
So the framing inverts. FSA is use it or lose it — deadline, cut-off dates, last-order-date banners, heaviest push in the first three weeks of December. HSA is this is what the account is for — eligibility, permission, and the higher-value purchase. The right HSA message is closer to “yes, your HSA covers prescription lenses, including the progressive upgrade you’ve been postponing” than to any countdown.
And the HSA campaign is not seasonal. It works in March. If you only ever run it in December, you are running your second-best Q4 campaign and skipping three quarters of the year entirely.
Practically: segment the two, write two subject lines, and put both words on the product page — because the page has to answer both buyers, even though the emails should not.
Where the money leaks out
The prescription step is the whole game. A customer with expiring benefits and a deadline will not accept “place your order and email us your prescription — we’ll follow up within one business day.” That’s a two-day round trip in the last week of December, and they will simply buy somewhere that takes the prescription now. If your Rx process happens outside your checkout, this is where your Q4 revenue goes.
They don’t know their PD. Pupillary distance is required to make the glasses and almost no consumer knows theirs. If your answer is “measure it with a ruler and a mirror” or “ask your optician,” you’ve asked a deadline shopper to complete a task on someone else’s schedule. Measuring PD from the camera removes an abandonment point with no other good solution.
Nothing on your site says you take FSA/HSA cards. Most FSA and HSA debit cards run on standard card networks and work like any other card — but a first-time online eyewear buyer doesn’t know that and won’t guess. Say it explicitly.
No receipts. Customers using an HSA, or an FSA plan requiring substantiation, need an itemized receipt showing the prescription eyewear purchase. If they have to request one from support, you’ve created a support ticket and a bad first experience. This one matters more for HSA holders than FSA holders — HSA substantiation can be needed years later, at tax time, for a purchase the customer has long forgotten.
A Q4 checklist
Before October — and the earlier the better, because two of these need to age:
- Publish a consumer-facing FSA/HSA page and let it age before the season. Cover what’s eligible, how to pay, and the deadline. This is a genuine ranking opportunity — search volume climbs from October and peaks in late December, but pages published in December don’t rank in December.
- Get prescription capture into your checkout flow if it isn’t already. Upload, manual entry, and email — the customer’s choice. This is the single highest-value change on the list.
- Add PD measurement so no customer is blocked on a number they don’t have.
October and November:
- Add FSA/HSA messaging to product pages and the cart — a simple “FSA & HSA eligible” line. It answers the question before it’s asked.
- Make itemized receipts automatic on every prescription order.
- Build the email sequence to your existing list. Segment anyone who bought prescription eyewear more than a year ago — they’re due, and they may have funds expiring.
- Check your lens upsell presentation. This is the audience most likely to accept coatings and upgrades. Make sure the options are visible and clearly explained rather than buried behind a dropdown.
December — the FSA campaign:
- Lead with the deadline, not a discount. “Your FSA dollars expire December 31” outperforms a percentage off with this audience, because urgency is already their state of mind and the money isn’t really theirs to save.
- Publish your shipping cut-off dates prominently. Prescription eyewear has lab time on top of shipping — customers need to know the real last order date.
- Have support staffed the last week of the year. It’s your highest-value week and the questions are mostly “will this work with my card” — cheap to answer, expensive to ignore.
December — and separately, the HSA campaign:
- Send the HSA segment a different email. No countdown, no expiry language. Lead on eligibility and on the upgrade: progressives, higher-index lenses, a second pair, prescription sunglasses.
- Then run it again in Q1, when nobody else is talking to these people and their money is still there.
The bigger pattern worth noticing
Every item on that checklist is really the same item: make the prescription part of buying eyewear effortless. Benefit season doesn’t demand a special feature set. It just applies maximum pressure to the weakest part of an eyewear store’s funnel — which is why stores that have fixed their prescription flow see a December spike, and stores that haven’t watch that money go somewhere else.
The FSA deadline is fixed and it’s in December. The HSA money has no deadline at all. The work for both is due before the season starts.
Frequently asked questions
Are prescription glasses FSA eligible?
Yes. Prescription eyeglasses, prescription sunglasses, and contact lenses are eligible expenses under health FSAs and HSAs. Non-prescription sunglasses generally are not.
Do FSA funds really expire?
For most plans, yes. Health FSAs operate on a use-it-or-lose-it basis. Some employers permit a limited carryover — up to $680 of 2026 funds into 2027 — and others offer a short grace period instead. Terms are set by the employer’s plan, so customers should check theirs. HSAs are different: those funds roll over indefinitely and belong to the accountholder.
Are more customers HSA-eligible this year?
The eligibility rules widened. For months beginning after 31 December 2025, bronze and catastrophic plans available through an Exchange count as high-deductible health plans — whether or not the customer bought through the Exchange — and qualifying direct primary care arrangements no longer disqualify contributions. So people who could not hold an HSA in 2025 can now. How many took it up is not something anyone has published; plan for a wider audience rather than a specific number.
Should I market to HSA customers the same way as FSA customers?
No. FSA money expires on 31 December, so deadline messaging works. HSA money never expires, so it doesn’t — and a countdown aimed at HSA holders reads as noise. Lead on eligibility and on the higher-value purchase instead, and run that campaign outside Q4 as well.
Can customers use an FSA card online?
Generally yes. Most FSA and HSA debit cards run on standard card networks and process like any other card at checkout on eligible purchases. Saying so on your site removes a real hesitation for first-time online eyewear buyers.
When should I start marketing to FSA customers?
Content should be published by September to rank in time. Direct campaigns work best from late October, with the heaviest push in the first three weeks of December.
This article is general information, not tax or legal advice. FSA and HSA rules depend on your plan and your circumstances; check with your plan administrator or a qualified adviser before acting.
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Sources: IRS Notice 2026-05, read in full (bronze and catastrophic Exchange plans, direct primary care arrangements and the $150/$300 monthly limits, and the telehealth safe harbor effective for plan years beginning after 31 December 2024) · IRS, “Treasury, IRS provide guidance on new tax benefits for health savings account participants under the One, Big, Beautiful Bill” · IRS 2026 health FSA contribution limit of $3,400 and carryover limit of $680 · Mercer, “2026 health FSA, other health and fringe benefit limits now set”.