Flexible spending accounts do not roll over—you lose unspent money at the end of the plan year

A flexible spending account (FSA) operates under a "use-it-or-lose-it" rule. Any money you don't spend by the end of your plan year (usually December 31, though some employers use different dates) stays with your employer or plan administrator. You cannot move it to an IRA, a health savings account, or carry it forward to next year as a balance.

This is the core difference between FSAs and other tax-advantaged accounts. Unlike an IRA, which grows year after year, or an HSA, which rolls over indefinitely, an FSA is designed to be spent within a single plan year. The money you contribute is pre-tax, which saves you money on taxes, but that tax benefit comes with the requirement that you use it or forfeit it.

Some employers offer a limited grace period—typically 2.5 months into the next calendar year—during which you can still spend the previous year's FSA money. A few plans allow a carryover of up to $610 (the limit varies by year and is set by the IRS) into the next plan year. But these are exceptions, not the rule. Most plans have neither option.

Key Takeaways

  • FSA money does not roll over to the next year unless your employer's plan specifically allows a carryover or grace period.
  • You cannot transfer FSA funds to an IRA, HSA, or any other retirement account.
  • If your plan offers a grace period, you typically have 2.5 months into the next year to spend the remaining balance.
  • Some employers allow a carryover of up to $610 per year, but you must check your plan documents to know whether yours does.
  • The use-it-or-lose-it rule is why careful planning of FSA contributions matters—contribute only what you expect to spend.

How the use-it-or-lose-it rule actually works

When your plan year ends, your FSA account closes. Any unspent balance is forfeited. The money does not go back to you as a refund, and it does not sit in an account waiting for you to claim it later. It is gone.

This applies even if you had a medical emergency late in the year and didn't have time to file claims. It applies even if you were saving the money for a planned procedure that got postponed. The rule is strict because FSAs are funded with pre-tax dollars, and the IRS treats forfeited money as a way to prevent people from using FSAs as savings vehicles.

The one exception is if you have a may have access to life event—marriage, divorce, birth of a child, loss of coverage—you may be able to change your FSA contribution mid-year. But this does not let you recover money you've already forfeited; it only lets you adjust what you contribute going forward.

Grace periods and carryovers: what your plan might offer

Not all FSA plans are identical. Your employer can choose to offer one of two options that soften the use-it-or-lose-it rule, though most do not offer either.

A grace period extends the spending window. If your plan year ends on December 31, a grace period typically allows you to spend remaining FSA money through March 15 of the following year. You can submit claims for expenses incurred during the grace period using the previous year's FSA balance. This gives you extra time but does not let you carry the money forward as a balance.

A carryover lets you move up to $610 (for 2024; this amount adjusts annually) from one plan year into the next. If you have $800 left on December 31 and your plan allows a $610 carryover, you keep $610 and lose $190. The carryover amount counts against your contribution limit for the new year, so if you can contribute $3,300 in 2025, and you carry over $610, your new contribution room is $2,690.

Check your plan documents or ask your benefits administrator whether your FSA offers either option. Many employers offer neither, so do not assume.

Why you cannot move FSA money to an IRA or HSA

FSAs and IRAs are separate accounts with different rules. An IRA is a retirement savings vehicle designed to grow over decades. An FSA is a short-term medical expense account. The IRS does not allow direct transfers between them.

An HSA (health savings account) is closer to an FSA in purpose—both pay for medical expenses with pre-tax money—but they operate independently. You cannot roll FSA money into an HSA, even if you have both accounts. If you leave an FSA and enroll in an HSA-may be able to access health plan, your FSA closes and any remaining balance is forfeited. The HSA starts fresh.

The reason for this separation is tax law. FSAs are governed by Section 125 of the Internal Revenue Code, while IRAs and HSAs have their own rules. Mixing them would create tax complications, so the IRS simply prohibits transfers.

What to do with unspent FSA money before year-end

If you have a balance remaining in your FSA and your plan year is ending soon, you have a few options to avoid losing the money.

First, review what medical expenses you can claim. FSAs cover a wide range of costs: copays, deductibles, prescriptions, dental work, vision care, hearing aids, and many over-the-counter items (with a prescription). If you've been putting off a dental cleaning, eye exam, or refilling glasses, the end of the plan year is the time to schedule it.

Second, stock up on FSA-may be able to access items you know you'll use. This includes over-the-counter pain relievers, allergy medications, and first-aid supplies—but only if you have a prescription or your plan explicitly covers them without one. Rules vary by plan, so check before you buy.

Third, if your plan offers a grace period, use it. You have extra time to submit claims for expenses you've already incurred.

If you cannot spend the money in time and your plan does not offer a grace period or carryover, accept the loss and adjust your contribution for next year. Contributing less means you forfeit less.

Planning your FSA contribution to avoid forfeiture

The best way to protect yourself from the use-it-or-lose-it rule is to contribute conservatively. Estimate your medical expenses for the coming year—copays, prescriptions, dental work, vision care—and contribute only what you reasonably expect to spend.

If you have a family, factor in everyone's medical needs. If you take regular medications, calculate the annual cost. If you wear glasses or contacts, add the cost of exams and replacements. If you have dental work planned, include that.

Build in a small buffer for unexpected expenses, but do not treat the FSA as a savings account. The tax savings are real—you avoid payroll taxes on FSA contributions—but only if you actually spend the money.

Review your contribution each year. If you forfeited money last year, contribute less this year. If you spent everything and wanted more, contribute more. Your contribution election is locked in during open enrollment, so get it right before the deadline.

What happens to forfeited FSA money

When you forfeit FSA money, it does not disappear into a void. Your employer or plan administrator keeps it. Some employers use forfeited FSA funds to offset the cost of administering the plan. Others use it to reduce premiums for all employees in the plan. In rare cases, it goes to the employer as a profit.

From your perspective, it is simply gone. You cannot reclaim it, and you have no say in where it goes. This is why the use-it-or-lose-it rule feels harsh—and why careful planning matters.

Frequently Asked Questions

Can I roll over my FSA to next year if I change jobs?

No. When you leave your job, your FSA closes and any remaining balance is forfeited, regardless of whether your new employer offers an FSA. The accounts are tied to your employer's plan, not to you personally. If your new employer has an FSA, you can enroll in it during your new hire benefits window, but you start with a fresh account and fresh contribution limit.

What if I have a grace period but don't spend the money by the deadline?

If your plan offers a grace period and you still have money left after the grace period ends, that money is forfeited. A grace period extends your spending window but does not eliminate the use-it-or-lose-it rule. Once the grace period closes, any remaining balance is gone.

Can I withdraw FSA money without a medical expense?

No. FSA withdrawals must be tied to a may have access to medical expense. Withdrawing money for non-medical reasons is not allowed and would trigger tax penalties. The account is designed specifically for healthcare costs, and the IRS enforces this restriction.

Does my spouse's FSA roll over if they don't use it?

No. Each person's FSA is independent. Your spouse's unspent FSA balance is subject to the same use-it-or-lose-it rule as yours. If their employer's plan offers a carryover or grace period, they can use that option, but otherwise the money is forfeited.

If my plan allows a carryover, does the carried-over money count toward next year's contribution limit?

Yes. If you carry over $610 into the next year, that amount reduces your new contribution room. If the annual FSA limit is $3,300 and you carry over $610, you can only contribute $2,690 in new money for the next year. The total available to you is still $3,300, but part of it comes from the carryover.