If you stuffed a flexible spending account this year, the clock is louder than you think.
Most employer-sponsored healthcare FSAs follow a calendar-year schedule, which means any balance left after December 31 can vanish.
That's not a scare tactic; it's how the "use it or lose it" rule works under IRS rules for these accounts.
Say you set aside $2,000 and only spent $1,400 on copays and prescriptions.
That $600 doesn't follow you into January.
It goes back to your employer, who can use it to offset the cost of administering the plan.
You basically donated your own money to a benefits program.
The good news is that many plans offer a grace period or a carryover, but the details vary wildly.
Some employers give you until March 15 to spend last year's funds.
Others let you roll over a capped amount, which the IRS set at $660 for 2025.
And plenty of workers have neither perk, meaning December 31 is a hard wall.
So where should you look before the ball drops?
Start with the everyday stuff you'll buy anyway.
Over-the-counter medications, menstrual products, sunscreen, bandages, and first-aid kits all qualify now thanks to looser rules.
Prescription glasses, contact lenses, and even some vision-related gear count too.
Then check the bigger-ticket items people forget.
A new pair of eyeglasses with anti-reflective coating, dental work that isn't purely cosmetic, hearing aids, and certain medical equipment can drain a balance fast.
Therapy and counseling copays qualify as well, so if you've been putting off appointments, December is a smart time to book them.
You can also stock up on eligible items through FSA storefronts that label every product.
Loading up on 40 boxes of allergy pills to burn a balance defeats the point of saving on taxes in the first place.
One warning: debit card purchases sometimes get rejected at the register even when the item qualifies.
Keep your receipts and be ready to submit a claim, because the deadline to file is usually separate from the deadline to spend.
Miss the paperwork window and you can lose money you already spent.
If you're still sitting on a balance in the final weeks, a quick eye exam and a new pair of glasses is the classic move for a reason.
It's useful, it's eligible, and it clears out a chunk of cash without waste.
Treat your FSA like a gift card with an expiration date, not a savings account.
Final Thoughts
Check your plan's specific rules today, spend with a purpose, and don't let January 1 quietly pocket money you worked for.