HSA vs. FSA: What’s the Difference and Which One Is Right for You?

While both can help you save money on eligible healthcare expenses, they work differently. Understanding the differences can help you decide which option may fit your needs.

HSA vs. FSA at a Glance

HSA FSA
Who can contribute? Employee and/or employer Employee and/or employer
Requires a specific health plan? Yes — generally an HSA-eligible high-deductible health plan (HDHP) No
Who owns the account? Employee Generally employer-sponsored
Does the money roll over? Yes Generally no, although some plans allow a carryover or grace period
Can the account stay with you if you leave your job? Yes Generally no
Can you invest the money? Potentially, depending on the HSA provider No
Can you use it for eligible healthcare expenses? Yes Yes

Plan rules can vary, so employees should review their specific plan documents for details.

What Is an HSA?

A Health Savings Account allows eligible individuals to set aside money on a tax-advantaged basis to pay for qualified medical expenses.

One important requirement is that you generally must be enrolled in an HSA-eligible high-deductible health plan (HDHP) to contribute to an HSA.

One of the biggest advantages of an HSA is that the money belongs to you. Unused funds generally remain in the account from year to year, and the account stays with you if you change employers.

For people who are eligible, an HSA can be useful not only for current healthcare expenses but also as  a  way to build savings for future healthcare costs.

What Is an FSA?

A Flexible Spending Account allows employees to set aside money from their paycheck on a pre-tax basis to pay for eligible healthcare expenses.

Unlike an HSA, an FSA generally isn’t tied to a particular type of health insurance plan.

One important difference is that FSA funds are generally subject to a use-it-or-lose-it rule, although some employers may offer a limited carryover or grace period. The specific rules depend on the employer’s plan.

Because of this, it’s important to estimate your expected healthcare expenses before deciding how much to contribute.

So, Which One Should You Choose?

There isn’t one right answer for everyone.

An HSA may be appealing if you’re enrolled in an HSA-eligible HDHP and want the ability to build healthcare savings that can remain yours from year to year.

An FSA may be a good option for someone whose employer offers one and who expects to have predictable eligible healthcare expenses during the plan year.

The Bottom Line

HSAs and FSAs can both be valuable tools for managing healthcare expenses, but they aren’t interchangeable.

The best choice depends on your health plan, your expected expenses, your employer’s contributions, and your individual financial situation.

If you’re an employer reviewing your benefit options or preparing for open enrollment, Haughn Insurance can help you understand how HSAs, FSAs, and other benefit options fit into your overall employee benefits strategy.