What Is an FSA — Everything You Need to Know in 2026

If someone handed you $3,400 and said you could use it tax-free on your health expenses this year you would take it right? That is essentially what a Flexible Spending Account is. And yet most people either do not have one set up properly or are leaving a significant chunk of that money on the table every single year.

I was one of those people for years. I had an FSA but I treated it like a rainy day fund for copays and nothing else. Then I started actually learning how it works and realized I had been missing out on hundreds of dollars in tax savings every year.

Here is everything you need to know about FSAs in 2026 — what they are, how they work, what they cover and how to actually use yours.

What Is an FSA?

A Flexible Spending Account — or FSA — is an employer-sponsored benefit that lets you set aside pre-tax money from your paycheck to pay for qualified medical expenses. Pre-tax means the money comes out of your paycheck before income taxes are calculated which effectively reduces your taxable income and saves you real money.

Here is how the math works. If you are in the 22% federal tax bracket and you contribute $2,000 to your FSA you save $440 in federal taxes alone. Add state taxes and you are looking at potential savings of 30 to 40% on every dollar you spend through your FSA. That is not a small amount.

According to IRS rules FSAs can only be sponsored by employers as part of an employee benefits package. Self-employed individuals and owners of certain types of corporations are generally not eligible for an FSA — though they may qualify for an HSA instead.

How Does an FSA Work?

During your employer's open enrollment period — typically in the fall for the following calendar year — you elect how much you want to contribute to your FSA for the coming year. That amount is then deducted from your paycheck in equal installments throughout the year before taxes are taken.

One of the most powerful features of an FSA is that your full annual election is available to you on day one of the plan year. This means if you elect $2,400 for the year that full $2,400 is available in your account on January 1st even though you have only contributed a small portion through your paychecks at that point. This is called pre-funding and it is unique to FSAs — HSAs only let you spend what you have actually contributed.

Most FSA participants receive a debit card linked to their account. You use this card at participating retailers and the money comes directly out of your FSA balance. At some retailers you may need to pay out of pocket and then submit for reimbursement through your FSA administrator — keep your receipts.

How Much Can You Contribute to an FSA in 2026?

For 2026 the IRS has set the healthcare FSA contribution limit at $3,400 per employee — an increase of $100 from the 2025 limit of $3,300 according to IRS Revenue Procedure 2024-40. This limit applies per FSA account regardless of whether you have individual or family health coverage.

If both you and your spouse have access to FSAs through your respective employers you can each contribute up to $3,400 for a combined household total of $6,800 in tax-free healthcare spending power.

The 2026 FSA carryover limit — for plans that offer this feature — is $680. This means if your plan allows carryover you can roll up to $680 of unused funds into the following year. Your employer may also offer a grace period through March 15th instead of a carryover — but not both.

There is also a Dependent Care FSA which covers childcare and dependent care expenses. For 2026 the Dependent Care FSA limit increased significantly to $7,500 per household under the One Big Beautiful Bill Act signed in July 2025 — up from $5,000 in 2025. This is a major benefit for working parents.

What Does an FSA Cover?

According to IRS Publication 502 a qualified medical expense is any amount paid for the diagnosis, cure, mitigation, treatment or prevention of disease or for anything that affects a structure or function of the body. The list is much longer than most people expect.

Since the CARES Act passed in March 2020 the list expanded significantly. Over the counter medications no longer require a prescription to be FSA eligible and menstrual products were added as a qualified expense.

FSA eligible expenses include: prescription medications, doctor visit copays, dental cleanings and procedures, vision exams, prescription eyeglasses and contacts, over the counter medications including pain relievers and allergy medications, sunscreen with SPF 15 or higher, menstrual products, first aid supplies, thermometers, blood pressure monitors, hearing aids, mental health therapy, acupuncture, chiropractic care and much more.

What FSA does NOT cover: cosmetic procedures, gym memberships for general fitness purposes, vitamins and supplements for general wellness, toiletries like toothpaste and shampoo, diapers and regular baby care items and food or beverages.

Where Can You Use Your FSA Card?

Amazon — filter your search by FSA or HSA eligible in the left sidebar. Your FSA card works directly at checkout. This is the most convenient option with the widest selection.

Target — accepts your FSA card directly at checkout both in store and online. Products are labeled FSA eligible. Great for combining FSA shopping with your regular Target run.

Walmart — accepts FSA card at checkout in store and online. Good for stocking up on FSA staples at lower prices.

FSA Store and HSA Store — dedicated websites where every single product is FSA eligible. No filtering required. Great for stress free shopping.

Ulta and Sephora — carry FSA eligible skincare and sunscreen but do not accept FSA cards directly at checkout. Pay with a regular card and submit for reimbursement through your FSA administrator.

Truemed — a platform used by wellness brands like Therabody and HigherDose that processes FSA and HSA payments at checkout. You complete a short health assessment and pay with your FSA card.

The Use It or Lose It Rule — and How to Not Lose Your Money

The most important thing to know about FSAs is the use it or lose it rule. Most FSA plans require you to spend your entire balance by December 31st of the plan year. If you do not spend it you lose it — the funds go back to your employer.

Some employers offer a grace period through March 15th of the following year to spend remaining funds. Some allow a carryover of up to $680 for 2026. Check with your HR department or benefits administrator to find out which option your plan offers.

The best way to avoid losing money is to elect an amount you are confident you will spend. Look at your previous year's medical expenses as a baseline — copays, prescriptions, dental, vision — and use that to inform your election. Set a calendar reminder in October to check your balance and plan your remaining spending.

How to Submit for FSA Reimbursement

If you paid out of pocket for an FSA eligible expense you can submit for reimbursement through your FSA administrator. Here is how.

Save your receipt. Log into your FSA administrator portal — this is usually accessed through your employer's benefits website. Submit a claim with the receipt, the amount, the date and the type of expense. Most plans reimburse within 3 to 5 business days via direct deposit or check.

Keep all FSA receipts for at least three years. Your FSA administrator can audit your account and ask you to verify that purchases were eligible. Having receipts protects you.

The Bottom Line

An FSA is one of the most underutilized employee benefits available. If your employer offers one and you are not using it you are leaving real money on the table every single year. The 2026 contribution limit is $3,400. That is $3,400 of pre-tax money you can use on your health expenses. Use it.

If this helped you save this post or share it with a mom who needs it 🩷 — Amanda

Sources

IRS Revenue Procedure 2024-40 — 2026 FSA contribution limit $3,400 — irs.gov

IRS Publication 502: Medical and Dental Expenses — irs.gov/publications/p502

IRS Publication 969: Health Savings Accounts and Other Tax-Favored Health Plans — irs.gov/publications/p969

The CARES Act (P.L. 116-136, March 27 2020) — OTC medications and menstrual products — congress.gov

One Big Beautiful Bill Act (July 2025) — Dependent Care FSA limit increase to $7,500 — congress.gov

Healthcare.gov — Using a Flexible Spending Account FSA — healthcare.gov/have-job-based-coverage/flexible-spending-accounts

FSA Store 2026 Contribution Limits — fsastore.com/articles/learn-new-fsa-contribution-limits

This post is for informational purposes only and does not constitute financial, legal or tax advice. FSA eligibility rules vary by plan. Always confirm with your plan administrator or a tax professional.