Can You Have Both an HSA and FSA at the Same Time?

You can have both an HSA and FSA, but only under specific circumstances, and the rules depend on which type of FSA you own

The short answer is yes — but with a major catch. You can hold both a Health Savings Account (HSA) and a Flexible Spending Account (FSA) at the same time, but only if your FSA is a Limited-Purpose FSA or a Dependent Care FSA. If you have a regular medical FSA, you cannot have an HSA in the same year. The IRS treats these accounts as mutually exclusive for general medical expenses.

The reason for this rule is that both accounts let you set aside pre-tax money for health costs, and the IRS does not want you to double-dip. An HSA requires you to be covered by a High Deductible Health Plan (HDHP), which has lower premiums but higher out-of-pocket costs. An FSA lets you use pre-tax dollars for medical expenses regardless of your health plan type. Combining them with a regular FSA would let you cover the same expense twice with tax-information programs, which the IRS prohibits.

Key Takeaways

You can have an HSA and a Limited-Purpose FSA at the same time, as long as you are enrolled in an HDHP for the HSA.
You cannot have an HSA and a regular medical FSA in the same year — you must choose one or the other.
A Dependent Care FSA does not conflict with an HSA because it covers childcare and adult care expenses, not medical costs.
If you switch from a regular FSA to an HSA, you must wait until the next calendar year or until your FSA plan year ends, whichever comes first.
A Limited-Purpose FSA covers only dental, vision, and preventive care expenses, leaving your HSA available for other medical costs.

The difference between a regular FSA and a Limited-Purpose FSA

A regular FSA (also called a general-purpose FSA) covers a broad range of medical expenses: doctor visits, prescriptions, lab work, mental health care, and more. Because it is so broad, the IRS says you cannot also have an HSA. You have to pick one account type for the year.

A Limited-Purpose FSA is narrower by design. It covers only dental work, vision care (including glasses and contacts), and preventive care services like annual physicals and vaccinations. Because it does not cover the same expenses an HSA would, there is no conflict. You can use the Limited-Purpose FSA for dental and vision, and use your HSA for everything else.

Some employers offer a Limited-Purpose FSA specifically to let workers with HSAs still get the tax break on dental and vision costs. If your employer offers this option and you have an HDHP, this is the path to having both accounts active.

How a Dependent Care FSA works alongside an HSA

A Dependent Care FSA is completely separate from medical FSAs. It covers childcare expenses — daycare, preschool, after-school programs, summer camps, and adult day care for aging parents or disabled family members. Because it has nothing to do with medical care, it does not conflict with an HSA at all.

You can have an HSA, a Limited-Purpose FSA, and a Dependent Care FSA all in the same year without any IRS restrictions. Each account serves a different purpose and draws from different parts of your household budget. The only limit is the annual contribution cap for each account type, which your employer sets within IRS limits.

What happens if you currently have a regular FSA and want to switch to an HSA

If you are enrolled in a regular medical FSA right now, you cannot open an HSA until that FSA plan year ends. Most FSAs run on a calendar year (January through December), but some employers use a different plan year. Check your FSA plan documents or ask your benefits administrator for your exact end date.

Once your FSA plan year ends, you can enroll in an HDHP and open an HSA during the next open enrollment period or when you have a may have access to life event (marriage, birth, loss of coverage, or move to a new state). You do not have to wait for the calendar year to change — you just have to wait for your FSA to end.

One important detail: if your FSA has unused money at the end of the plan year, you lose it. The IRS "use-it-or-lose-it" rule means FSA funds do not roll over to the next year. Plan your FSA spending carefully in the months before your plan year ends, because any balance left over disappears.

The HSA advantage if you can use one

If you are may be able to access for an HSA (meaning you are on an HDHP), it is often the better choice than a regular FSA, even though you cannot have both. An HSA lets you carry unused money forward year after year, invest it, and use it for medical expenses decades later. An FSA requires you to spend the money within the plan year or lose it.

An HSA also belongs to you, not your employer. If you change jobs, your HSA comes with you. An FSA stays with your employer — if you leave, you can continue it under COBRA rules, but you cannot take it to your new job. For long-term savings, an HSA is more flexible.

That said, an FSA can be useful if you have predictable medical expenses coming up in the next year and you want to lock in the tax savings. If you know you need dental work, glasses, or regular prescriptions, an FSA lets you set aside money for those costs before taxes are taken out.

Checking your plan documents and asking your employer

Your employer's benefits guide should spell out which accounts are available to you and whether they offer a Limited-Purpose FSA. If the guide is unclear, contact your benefits administrator or human resources department directly. They can tell you exactly which combinations are offered at your company.

Do not assume based on what a coworker has. Benefits packages vary by employer, and some companies offer Limited-Purpose FSAs while others do not. Your employer might also have rules about switching between account types during the year.

Frequently Asked Questions

Can I have an HSA and a regular medical FSA at the same time?

No. The IRS prohibits this combination because both accounts use pre-tax money for medical expenses. You must choose one or the other for the calendar year. You can switch to an HSA once your FSA plan year ends.

What is a Limited-Purpose FSA?

A Limited-Purpose FSA covers only dental, vision, and preventive care expenses. Because it does not cover general medical costs, you can have one alongside an HSA. This setup lets you get the tax break on dental and vision while keeping your HSA available for other medical bills.

If I have an HSA, can I still use a Dependent Care FSA?

Yes. A Dependent Care FSA covers childcare and adult care expenses, which are separate from medical costs. There is no conflict with an HSA, so you can have both accounts active in the same year.

What happens to my FSA money if I switch to an HSA?

Any unused FSA balance is forfeited when your plan year ends — the IRS does not allow it to roll over. You cannot transfer FSA money to an HSA. Plan your FSA spending carefully before the plan year ends so you do not waste the money you set aside.

Can I switch from an FSA to an HSA in the middle of the year?

Not usually. You have to wait until your FSA plan year ends, which is typically December 31 but may vary by employer. Once it ends, you can enroll in an HDHP and open an HSA during the next open enrollment period or if you have a may have access to life event.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.