Your Free FSA Expenses Information Guide

What This FSA Guide Covers and Why It Matters for You

Flexible Spending Accounts (FSAs) work differently than most people expect, and that's where confusion starts. This guide walks through how FSAs actually operate, what you can and can't use the money for, and the specific rules that often trip people up. We're not here to tell you whether an FSA makes sense for your situation—that's a conversation for you and your tax professional—but we can explain how these accounts function so you understand your options.

America's Tire Credit Card Information Guide →

FSAs have existed since 1978, but they've remained surprisingly mysterious to many workers. According to the IRS, approximately 30 million Americans have access to FSAs through their employers, yet millions leave money unused each year simply because they don't understand the rules. The account itself is straightforward in concept: you set aside pre-tax money from your paycheck to pay for certain medical and dependent care costs. But the details matter enormously, and that's what separates confusion from confidence.

This guide focuses on the real-world mechanics. We cover the list of medical expenses the IRS actually recognizes (it's longer than many people think, but also narrower in specific ways). We explain the "use-it-or-lose-it" rule that catches people off guard. We walk through how receipts and reimbursement work. And we address the common situations where people think something is covered and it isn't.

The value of understanding FSAs is concrete: if you know the rules, you can make an informed decision about whether to participate, and if you do participate, you won't waste money on reimbursement requests that will be denied.

Practical takeaway: Before reading further, think about your own healthcare and dependent care spending over the past year. Do you have regular, predictable expenses in these categories? That number will matter when you're deciding whether to contribute to an FSA.

How FSAs Actually Work: The Structure and Timeline

An FSA is a benefit account offered by your employer. It works like this: you tell your employer how much money you want to set aside from your paycheck during the open enrollment period (usually once a year). That money goes into the account before taxes are calculated on your paycheck, which is why it's called "pre-tax." Then, throughout the year, you use that money to pay for medical or dependent care expenses, and your employer reimburses you from the FSA fund.

Get Your Free Airbag Reset Modules Information Guide →

The timing is important. Unlike a Health Savings Account (HSA), which rolls over year to year, an FSA operates on an annual basis. You choose your contribution amount for the calendar year, and that money sits in the account waiting to be used. Most plans include a small grace period—typically 2.5 months—where you can use funds from the prior year for expenses incurred during that grace period. Some plans offer a carryover of up to $610 (for 2024), but not all employers include this feature. Check your specific plan documents to know which rules apply to you.

The reimbursement process typically works one of two ways. With some FSAs, you receive a debit card that you can use directly at pharmacies, medical offices, and certain other providers. The account is debited immediately, and you don't need to file any paperwork. With other plans, you pay out of pocket and then submit receipts to your employer or the FSA administrator to get reimbursed. Some plans use both methods for different types of expenses.

The IRS sets the maximum FSA contribution limit, which increases annually for inflation. For 2024, the limit is $3,300 per person. For dependent care FSAs, the limit is $5,000 per household. If you're married and both work, you can each contribute up to the dependent care limit if you file taxes jointly, but the household maximum is still $5,000 total.

One critical detail: FSAs are employer-based, which means the account belongs to your employer's plan, not to you personally. If you leave the job, the FSA ends, and you lose access to any unused money. This is the single biggest reason people need to estimate carefully when deciding how much to contribute.

Practical takeaway: Write down your employer's open enrollment dates and plan rules now. Call your HR department or benefits administrator and confirm: Does your plan include a grace period? A carryover? What's the reimbursement process? These details vary dramatically between employers.

The Complete List of Medical Expenses FSAs Cover

The IRS maintains an official list of medical expenses that qualify for FSA reimbursement, and it's broader than most people realize. However, it also has specific exclusions that surprise people. Understanding the actual list is where most FSA confusion lives.

Good Sam Credit Card Information Guide →

Covered medical expenses include the obvious ones: copayments and deductibles, prescription medications, insulin, and medical equipment like crutches or wheelchairs. But the list extends much further. You can use FSA funds for dental work—fillings, root canals, cleanings, orthodontia, and dentures. Optometry and vision care are covered, including eye exams, glasses, and contact lenses. Hearing aids and batteries are covered. Physical therapy and chiropractic care are covered. Mental health and therapy sessions are covered. Acupuncture is covered if a licensed acupuncturist provides it.

Over-the-counter medications are covered only if you have a prescription for them (except for insulin, which doesn't require a prescription). This distinction catches people constantly. Ibuprofen, allergy medications, and cold medicines sitting on store shelves aren't covered, but if your doctor writes "Rx" on a prescription for the same medication, it becomes covered. Sunscreen, vitamins, and dietary supplements are generally not covered unless prescribed by a doctor for a specific medical condition.

Medical travel is covered—you can use FSA funds for transportation to medical appointments, including mileage, taxi fares, or public transportation. Medical conference attendance is covered if the conference relates to your medical condition. Certain home improvements are covered if they're medically necessary—a home elevator for someone with mobility issues, grab bars in a bathroom for fall prevention, or adjustments for wheelchair accessibility.

What's not covered is important to know. Cosmetic procedures—teeth whitening purely for appearance, Botox, hairpieces unless medically necessary for a scalp condition—are not covered. Gym memberships and general fitness are not covered, though weight loss programs recommended by a doctor for a specific medical condition may be covered. Hair removal is not covered unless it's for a medical condition like hirsutism. Long-term care is generally not covered by a medical FSA (though some employers offer separate long-term care FSAs).

The line between covered and not-covered can be genuinely blurry in real situations. Maternity clothes are not covered, but a specially designed maternity back support prescribed by an OB-GYN may be. An annual physical exam is covered, but a preventive massage for general wellness is not. These edge cases are where communication with your FSA administrator matters.

Practical takeaway: Before you make a reimbursement request for anything unusual, contact your FSA administrator—not your doctor, not an online forum. Ask: "Is [specific expense] covered under my plan?" Get confirmation in writing if possible. A two-minute call prevents denied claims.

Dependent Care FSAs: A Separate Account with Different Rules

Many employers offer a second type of FSA called a Dependent Care FSA (often called a DCFSA or childcare FSA). This is a completely separate account with its own contribution limit and its own set of rules. It's crucial not to mix them up.

Learn Which States Allow Anonymous Lottery Claims →

A Dependent Care FSA reimburses you for costs of caring for dependents while you and your spouse (if applicable) are working or in school. In most cases, this means childcare—preschool, daycare, summer camps, after-school care, or babysitters. It also covers adult day care for a dependent adult you're caring for. The dependent must be under age 13, or if older, must be unable to care for themselves due to disability.

The key difference from a medical FSA is simple: it's for the cost of care, not for your dependent's medical treatment. You can't use a DCFSA to pay for your child's doctor visits or medications. Those expenses go in the medical FSA if you have one. Dependent Care FSAs reimburse childcare so