You can only add more money to your FSA if you have a may have access to life event
No, you cannot simply decide to put more money into your FSA in the middle of the year. The IRS treats FSA contributions as part of your benefits election, which locks in on January 1st (or whenever your plan year starts). To change that amount after the year has begun, you need what the IRS calls a may have access to life event — a specific change in your circumstances that the law recognizes as a reason to adjust your benefits.
Your employer's benefits administrator decides which events may have access to, but they must follow IRS rules. Common may have access to events include getting married, having a baby, losing health coverage, or a significant change in your dependent care costs. A simple desire to save more money does not may have access to, even if you have the income to do it.
If you do have a may have access to event, you typically have 30 to 60 days from the date of the event to request the change. Miss that window and you are locked in until the next plan year.
Key Takeaways
- You can only increase FSA contributions mid-year if you experience a may have access to life event recognized by the IRS, such as marriage, birth of a child, or loss of coverage.
- Your employer's benefits administrator maintains the list of what counts as may have access to in your specific plan, though all must follow federal rules.
- You must request the change within 30 to 60 days of the event; the exact deadline depends on your employer's plan rules.
- If you miss the deadline or have no may have access to event, you cannot change your contribution amount until the next open enrollment period.
What counts as a may have access to life event for FSA changes
The IRS recognizes a set list of events that allow you to change your FSA contribution mid-year. These include birth or adoption of a child, marriage or divorce, death of a spouse or dependent, a significant change in your child care costs or provider, loss of health coverage (yours or a spouse's), and a change in your spouse's employment that affects your benefits. Some plans also allow changes if you move to a state with different tax rules or if your employer changes the FSA plan itself.
The key word is significant. A small change in your dependent care costs probably will not may have access to. A major change — such as your child aging out of daycare and entering school, or your spouse losing their job and their employer health plan — usually will. Your benefits administrator can tell you whether your specific situation meets the threshold.
Certain events do not may have access to. A simple raise or bonus does not may have access to. A change in your health status does not may have access to unless it affects your coverage or dependent care. A desire to save more for medical expenses does not may have access to on its own.
How to request a mid-year FSA increase
Contact your employer's benefits administrator or human resources department as soon as the may have access to event occurs. Do not wait. You will need to provide documentation of the event — a birth certificate for a new child, a marriage license, a termination letter from a spouse's employer, or a letter from your daycare showing a change in costs. Different employers ask for different proof, so ask what they need before you gather documents.
Your benefits administrator will give you a form to complete, usually called a life event change form or benefits change request. On this form, you will state the event, the date it occurred, and the new contribution amount you want. Be specific about the dollar amount — do not just say "more"; say exactly how much per paycheck or per month you want to contribute.
Submit the form and documentation within the deadline your plan specifies, typically 30 to 60 days from the event. Some employers allow online submission through their benefits portal; others require paper forms. Ask whether you can email or must mail it, and whether there is a specific email address or department.
What happens if you miss the deadline
If you do not request the change within your plan's deadline window, you cannot increase your FSA contribution until the next open enrollment period, which is usually in the fall for a January plan year. You are stuck with your current contribution amount for the rest of the year.
This is why timing matters. If you have a may have access to event, do not assume you can request the change anytime. Mark the deadline on your calendar and submit your request early. If you are unsure whether your event qualifies or what the deadline is, call your benefits administrator immediately rather than waiting.
The difference between FSA and HSA mid-year changes
If you have a Health Savings Account (HSA) instead of or in addition to an FSA, the rules are different. HSAs allow you to change your contribution amount mid-year without a may have access to event — you can increase or decrease whenever you want, as long as you do it before the end of the calendar year. This flexibility is one reason some people prefer HSAs.
FSAs, by contrast, are much stricter. They require a may have access to event and a narrow deadline. If you are considering which account to use or whether to switch, this difference is worth weighing. HSAs also let you carry unused money forward year to year (up to a limit), while FSAs have a use-it-or-lose-it rule, though some plans offer a small carryover or grace period.
Why the IRS limits mid-year FSA changes
The IRS restricts mid-year FSA changes to prevent people from gaming the system. If anyone could add money whenever they wanted, people would wait until they knew they had a medical expense coming up, dump money into the account, use it, and then withdraw the money at year-end. That would turn the FSA into a tax shelter rather than a genuine savings tool for predictable expenses.
By requiring a may have access to event, the IRS ensures that FSA contributions reflect your actual expected expenses at the start of the year. The may have access to event rule exists because major life changes — a new baby, a new marriage, a change in child care — genuinely do change your expected medical or dependent care costs in ways the IRS recognizes as legitimate.
Planning ahead to avoid mid-year FSA regrets
The best strategy is to estimate your expenses carefully during open enrollment and set your contribution then. If you are unsure how much you will spend, start conservative. You can always increase next year if you underestimated, and you will not lose money by contributing less than you could have.
Keep receipts and track your actual spending throughout the year. If you realize mid-year that you underestimated, check whether any life change you experienced qualifies as a may have access to event. Sometimes people forget that a change counts — a move to a new state, a spouse's job change, or a shift in child care arrangements can all may have access to, even if they did not seem like "benefits events" at the time.
If you have no may have access to event and cannot increase your FSA, consider whether you can use other tax-advantaged accounts. Dependent Care FSAs have separate contribution limits from medical FSAs, so if you maxed out one, you might still be able to contribute to the other. Talk to your benefits administrator about what accounts are available in your plan.
Frequently Asked Questions
Can I increase my FSA if I got married mid-year?
Yes, marriage is a may have access to life event. You typically have 30 to 60 days from your wedding date to request the change. You will need to provide your marriage license as proof. Contact your benefits administrator right away to find out the exact deadline and what form to submit.
What if I had a baby — can I add more to my FSA?
Yes, birth of a child is a may have access to event. You have 30 to 60 days from the birth date to request an increase. Bring the baby's birth certificate to your benefits administrator. This is one of the most common reasons people increase their FSA mid-year, since a new child often means new medical expenses and possibly new dependent care costs.
Does a raise or bonus let me increase my FSA?
No. A change in your income alone does not may have access to as a may have access to life event. You can only increase your FSA mid-year if you experience a specific event the IRS recognizes, such as marriage, birth, loss of coverage, or a significant change in dependent care costs. You will have to wait until next year's open enrollment to increase based on higher income.
What if my employer changed the FSA plan mid-year?
If your employer makes a material change to the FSA plan itself — such as changing the annual contribution limit, the covered expenses, or the plan structure — you may be allowed to change your contribution. This is considered a plan change event. Ask your benefits administrator whether the change your employer made qualifies and whether you can adjust your contribution as a result.
Can I decrease my FSA mid-year without a may have access to event?
No. Decreasing your contribution also requires a may have access to life event. However, if you have a may have access to event, you can increase, decrease, or stop your contribution. For example, if you lose your job, you can decrease your FSA contribution to match your new income situation.