US FSA Year-End Claims: Receipts and Plan Deadlines

Real talk: why do millions of FSA dollars vanish every December?

Every fall, Open Enrollment rolls around and we check that box to stash pre-tax dollars into a Healthcare Flexible Spending Account (FSA). It feels like a massive win for saving on copays, glasses, and dental work. But fast-forward to late autumn, and suddenly you are staring at a remaining balance with the dreaded "use-it-or-lose-it" clock ticking down toward December 31st.

Here is the frustrating reality: millions of Americans leave hard-earned money on the table every single year simply because nobody explains how the deadlines actually work. Unlike an HSA, which rolls over forever, FSAs belong to your employer's cafeteria plan. If you do not spend your funds or file your receipts in time, that cash literally evaporates back into company coffers. But before you panic-buy twenty identical first aid kits, let's look at the deadlines and documents to check.

Carryover vs. grace period: the crucial employer plan fork in the road

The biggest trap people fall into is assuming every workplace handles year-end leftovers the same way. Under IRS rules, your employer can offer one of two relief valves—or neither, but legally not both! They might offer a grace period (giving you an extra 2.5 months until March 15th to incur new expenses), or a limited carryover (letting you roll over an IRS-capped amount into the new year), or a strict December 31st cutoff with only a "run-out period" to submit past receipts.

Your specific Summary Plan Description is a key document to consult. From stocking up on everyday eligible essentials like sunscreen, menstrual care, and prescription sunglasses to ensuring your itemized receipts and EOBs clear substantiation audits without getting clawed back, TuTu rounded up the clearest expert breakdowns and claim walkthroughs. Use the collection to prepare questions and documents for your own plan.