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

Flexible spending accounts (FSAs) operate under a "use it or lose it" rule. Any money you contribute but do not spend by the end of your plan year is forfeited to your employer. Unlike a traditional IRA or 401(k), FSAs have no carryover mechanism, no borrowing option, and no way to recover funds you did not use.

The only exception is a limited grace period or carryover amount that some employers offer—but this is optional, not may provide. You need to check your specific plan documents to know whether your employer allows either option, and if so, how much.

Key Takeaways

  • FSA contributions are forfeited if not spent by the end of your plan year; there is no automatic rollover to the next year.
  • Some employers offer a grace period (usually 2.5 months into the next year) or allow you to carry over up to $610 (2024 limit), but this is optional and varies by plan.
  • You must know your plan's rules before the plan year ends to avoid losing money you contributed.
  • The IRS sets annual contribution limits, and any carryover amount counts against next year's limit.

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

When you enroll in an FSA, you commit to contributing a set amount each pay period. That money is deducted from your paycheck before taxes, which reduces your taxable income. At the end of your plan year (usually December 31, though some employers use different dates), any balance remaining in your FSA account is gone. Your employer keeps it.

This is different from a Health Savings Account (HSA), which rolls over indefinitely and functions more like a retirement account. FSAs are designed as annual spending accounts, not savings vehicles. The forfeiture rule is built into federal tax law, not just your employer's choice.

The only way to recover unspent FSA money is if your employer has chosen to offer a grace period or carryover option. Without one of these, there is no recovery method.

Grace periods and carryover limits

Some employers allow a grace period—typically 2.5 months into the next calendar year—during which you can spend down your previous year's FSA balance. If your plan offers this, you can use leftover funds from 2024 to pay for may be able to access expenses through mid-March 2025, for example. Not all employers offer this, and the length varies.

Other employers allow a carryover, meaning you can roll a portion of your unused balance into the next plan year. The IRS caps this at $610 for 2024 (this limit changes annually). If you had $800 left over, you could carry $610 forward and lose $190. The amount you carry over counts against your contribution limit for the next year.

You cannot have both a grace period and a carryover in the same plan—your employer chooses one or the other, or neither. Check your plan documents or ask your benefits administrator which option applies to you.

How to avoid losing FSA money

The most direct way to protect your FSA balance is to spend it before the plan year ends. Review your may be able to access expenses: medical copays, deductibles, prescriptions, dental work, vision care, and over-the-counter items like pain relievers and allergy medicine all count. If you have a planned procedure or know you need glasses, schedule it before year-end.

If you are unsure whether an expense qualifies, ask your FSA administrator or check the IRS Publication 969, which lists may be able to access medical expenses. Some items—like cosmetic procedures or gym memberships—do not may have access to, so confirm before spending.

Another strategy is to reduce your FSA contribution for the next year. If you consistently have leftover money, you are contributing too much. During open enrollment, lower your election to match what you actually spend. This prevents forfeiture and keeps more money in your paycheck.

FSA contribution limits and how carryover affects them

For 2024, the maximum FSA contribution is $3,300 per year. This limit is set by the IRS and may increase in future years. If your employer allows carryover and you roll $610 into 2025, your maximum new contribution for 2025 is reduced to $2,690 (the annual limit minus the carryover amount).

This matters because it affects how much you can set aside from your paycheck. If you are counting on a certain amount of tax savings from your FSA contribution, a carryover will reduce that benefit in the following year.

What happens if you change jobs or lose coverage

If you leave your job or lose FSA coverage mid-year, you may be able to access your FSA balance through COBRA (Consolidated Omnibus Budget Reconciliation Act), which lets you continue the plan for a limited time. However, you must pay the full premium yourself, including the employer's share.

If you do not elect COBRA or are ineligible, any unspent FSA balance is forfeited immediately. There is no way to transfer it to a new employer's FSA or to an HSA. This is one reason to spend down your FSA if you know you are leaving a job.

A may have access to life event—such as losing coverage—does allow you to change your FSA election outside of open enrollment, but only to reduce or cancel your contribution, not to extend the deadline for spending.

FSA vs. HSA: key differences in rollover rules

If you have access to both an FSA and an HSA, the rollover rules are very different. An HSA has no use-it-or-lose-it rule; money rolls over indefinitely and can be invested like a retirement account. An FSA is annual and forfeits unspent funds.

Some people use an FSA for predictable, near-term medical expenses (copays, prescriptions, dental work this year) and an HSA for longer-term health savings. If you are unsure which account to prioritize, consider how much you spend on medical expenses annually and whether you can reliably predict that amount.

Frequently Asked Questions

Can I roll over FSA money to an HSA?

No. FSA and HSA are separate accounts with different rules. Unspent FSA money cannot be transferred to an HSA, and the two accounts cannot be combined. If you leave an FSA, any remaining balance is forfeited.

What if my employer offers both a grace period and carryover?

Your employer must choose one or the other, not both. Check your plan documents to see which option applies. If neither is mentioned, assume the use-it-or-lose-it rule applies with no exceptions.

Can I get my FSA money back if I did not spend it?

No. Once the plan year ends and you have not spent the money, it is forfeited. There is no refund, no appeal, and no exception unless your employer offers a grace period or carryover. The only way to recover funds is to spend them before the deadline.

Does the FSA carryover count as income?

No. The carryover amount is not taxable income. It remains a pre-tax benefit and counts only against your contribution limit for the next year, reducing how much new money you can set aside.

What if I do not know my plan year end date?

Contact your benefits administrator or check your FSA plan documents. Most plans end December 31, but some employers use different dates. Knowing the exact date is critical because that is when forfeiture happens.