FSA Tips That Actually Save You Money
A flexible spending account is free money with a fuse attached. Here's how to light it on your terms — spend it all, time it right, and never forfeit a dollar.
Updated October 2026 · For health care FSAs and dependent care FSAs
The one tip that matters most: your FSA has a deadline. Most plans end December 31, with either a March 15 grace period or a carryover of up to $680 — but rarely both, and never both at full value. Everything else on this site is about spending well before that fuse burns down.
The ten FSA tips worth acting on
- Find your plan's real deadline today. Ask HR one question: "Do we have a grace period or a carryover?" The answer changes your whole year. Deadline details for 2026.
- Check your balance monthly. Forfeited FSA money goes back to your employer. The average forfeiture is a couple hundred dollars — because nobody looks.
- Buy the boring stuff you'd buy anyway. Prescription glasses, contact lenses, sunscreen (SPF 15+), first-aid supplies, thermometers, bandages — all eligible. The full list.
- Stock up in November. FSA-eligible items are sold year-round at drugstores and big-box stores. There is no rule against buying next year's sunscreen in December.
- Get the receipts right. Only the medical portion counts: mile reimbursement to appointments is allowed (at the IRS medical rate), but the tip on your massage is not.
- Use the FSA store card where accepted — but keep receipts anyway. Substantiation letters arrive months later, and you'll want the paper trail.
- Time big purchases into the FSA year you've already funded. Your full annual election is available on day one — schedule the dental work early in the year, not December.
- Reimburse yourself retroactively. Eligible expenses you already paid out-of-pocket this plan year can usually be reimbursed from the FSA — dig up those receipts.
- Married? Both spouses can each fund a health FSA. $3,400 each in 2026, separately — but you can't claim the same expense twice.
- Re-election is not automatic. FSA elections don't roll over between plan years. Open enrollment is the moment to resize: 2026 limits →
Spend it before you lose it
The internet's favorite FSA question is "what can I burn this on before the deadline?" — asked every December in forums with hundreds of replies. The serious answer is a shopping list, not a panic: prescription sunglasses, OTC medicines, acne treatments, reading glasses, heating pads, and 40+ more surprise-eligible items. The careful answer is the calendar: the use-it-or-lose-it rules and your spend-down plan.
Have an HSA instead — or choosing between them? Read
FSA vs HSA side by side, then visit our sister site
HSARates.com to make sure the HSA's interest rate isn't stealing your money quietly.
Every FSA question, answered on one site
The complete 2026 list — print-friendly, so you can tape it to the fridge.
December 31, March 15, or carryover — which one your plan uses and what it means.
Toothpaste? Toilet paper? Sunscreen? The surprising yes/no list.
$3,400 health FSA, $680 carryover, $7,500 dependent care.
What actually happens to unspent money, and the spend-down playbook.
The open-enrollment decision in one table.
Sources:
IRS Pub 969 ·
IRS Rev. Proc. 2025-32 ·
FSAFEDS. FSATips.com is an independent educational resource, unaffiliated with any benefits provider or the IRS. Nothing here is tax advice — plan rules vary by employer, so confirm with your plan documents.