You can have both an HSA and FSA, but only under specific conditions that depend on the type of FSA you hold

The short answer: it depends on which FSA you have. If you have a dependent care FSA, you can hold an HSA at the same time with no restrictions. If you have a health care FSA, the rules are stricter — you can have both, but your health care FSA must be what's called a "limited-purpose FSA" or "restricted-purpose FSA," and you must meet HSA may be able to access rules on top of that.

The reason for this restriction is that both accounts are designed to let you pay medical expenses with pre-tax dollars. The IRS doesn't allow you to double-dip by having a regular health care FSA and an HSA covering the same expenses in the same year. A limited-purpose FSA gets around this by covering only dental and vision care, leaving medical expenses for the HSA to cover.

Key Takeaways

  • A dependent care FSA and an HSA can be held together with no restrictions, since they cover different types of expenses.
  • A regular health care FSA and an HSA cannot be held together in the same year — you must choose one or the other.
  • A limited-purpose FSA (covering only dental and vision) can be held with an HSA, as long as you meet all HSA may be able to access requirements.
  • Your employer's plan documents determine whether your health care FSA qualifies as limited-purpose; you cannot convert a regular FSA to limited-purpose on your own.
  • If you have both accounts, you must track which expenses go to which account to avoid IRS penalties.

When a Dependent Care FSA and HSA Work Together

A dependent care FSA covers childcare, adult day care, and similar expenses for dependents while you work. An HSA covers medical expenses. Because these two accounts cover completely different categories of spending, the IRS allows you to hold both at the same time without any conflict.

You can contribute the maximum to each account in the same year. For 2024, the dependent care FSA limit is $5,000 per household per year (or $2,500 if you are married filing separately). The HSA limit varies based on your coverage type — $4,150 for self-only coverage or $8,300 for family coverage. Neither account affects the other's contribution room or your ability to use both.

How a Limited-Purpose FSA Allows Both Accounts

A limited-purpose FSA (sometimes called a restricted-purpose FSA) covers only dental and vision expenses — things like cleanings, fillings, glasses, contact lenses, and eye exams. Because it does not cover general medical care, it does not overlap with what an HSA covers. This separation is what makes it legal to hold both accounts.

The catch: your employer must offer a limited-purpose FSA as a separate plan option. You cannot take a regular health care FSA and use it only for dental and vision on your own. The plan document itself must define it as limited-purpose. When you enroll, your employer will tell you which type of health care FSA (if any) they offer. If they offer both a regular and a limited-purpose version, you can choose the limited-purpose one to pair with an HSA.

If your employer offers only a regular health care FSA, you must choose between that FSA and an HSA — you cannot have both in the same year.

HSA may be able to access Requirements Still Apply

Even if you have a limited-purpose FSA, you must still meet all the standard HSA rules. You must be enrolled in a high-deductible health plan (HDHP), have no other health coverage besides the HDHP and the limited-purpose FSA, not be claimed as a dependent on someone else's tax return, and not be enrolled in Medicare.

The limited-purpose FSA does not disqualify you from HSA coverage — it just means your health care FSA is not considered "other health coverage" because it only covers dental and vision. But if you also have, for example, a spouse's regular health insurance plan, that would disqualify you from the HSA, regardless of what FSA you hold.

What Happens If You Violate the Rules

If you contribute to both a regular health care FSA and an HSA in the same year, the IRS treats the HSA contribution as excess and you face a 6% excise tax on the overage each year it remains in the account. You also owe income tax on the excess amount. The penalty applies until you withdraw the excess funds.

The IRS does not always catch this immediately — it depends on whether your employer reports the accounts correctly to the tax authorities. But if you are audited, the discrepancy will surface. The safest approach is to confirm with your employer's benefits administrator which accounts you can legally hold together before you enroll.

Tracking Expenses When You Have Both Accounts

If you hold an HSA and a limited-purpose FSA at the same time, you need a system to track which expenses come from which account. Dental and vision expenses must come from the FSA. All other medical expenses — copays, prescriptions, deductibles, medical equipment — come from the HSA.

Keep receipts and explanation of benefits statements for everything. If you accidentally pay a dental expense from your HSA when you had FSA funds available, you can request a reimbursement from the HSA and deposit it back, but this creates a paper trail you will need to defend if audited. The simpler approach is to use the FSA debit card for dental and vision, and the HSA card or direct reimbursement for everything else.

Frequently Asked Questions

Can I switch from a regular FSA to a limited-purpose FSA mid-year to open up an HSA?

No. FSA elections are locked in during your employer's open enrollment period and cannot change until the next year, with rare exceptions like a may have access to life event (marriage, birth, loss of coverage). You would need to wait until the next open enrollment to switch plan types.

If I have an HSA and limited-purpose FSA, can I use the HSA for dental work?

Yes, but only if you have already exhausted your limited-purpose FSA funds or if the expense is not covered by the FSA. The IRS does not require you to use the FSA first — it just requires that you do not pay the same expense twice from both accounts.

What if my employer does not offer a limited-purpose FSA?

You must choose between a regular health care FSA and an HSA. You cannot have both in the same year. If an HSA is important to you, ask your benefits administrator whether the company plans to offer a limited-purpose option in the future.

Does having a dependent care FSA affect my HSA at all?

No. A dependent care FSA and an HSA are completely separate and do not interact. You can contribute the maximum to both in the same year with no penalties or restrictions.