HSA vs. FSA

The plain answer

An HSA is yours. The money stays with you when you change jobs, rolls over every year, and may be invested if your provider allows it.

A healthcare FSA belongs to your employer’s plan. It is usually use-it-or-lose-it, although the plan may allow a limited carryover of up to $680 for 2026. FSA money generally cannot be invested.

How it actually works

Feature	HSA	Healthcare FSA
Ownership	You own the account	Your employer sponsors the plan
Rollover	The full balance rolls over	Usually use-it-or-lose-it; a plan may allow a limited carryover
Investing	Often available after meeting the provider’s cash requirement	Not available
Eligibility	Requires an HSA-eligible health plan	Depends on your employer’s benefits
2026 contribution limit	$4,400 for self-only coverage or $8,750 for family coverage	$3,400 per employee
When funds are available	Contributions become available as they enter the account	Your full annual election is generally available at the start of the plan year
After leaving a job	The account and balance remain yours	Access usually ends under the plan’s rules

Both accounts can provide a tax advantage when you use the money for qualified medical expenses. Their ownership and year-end rules make them useful for different goals.

What this means for you

An HSA can support both current medical spending and long-term saving because the balance can grow across years. A healthcare FSA is better suited to predictable expenses you expect during the plan year.

If your employer offers an FSA, estimate conservatively. Check whether the plan offers carryover or a grace period and note every claim deadline. The federal maximum is not a promise that your plan will offer the maximum carryover.

Common mistakes

• Treating an FSA like a personal account that follows you to a new job
• Assuming every FSA balance carries over
• Electing the annual FSA maximum without estimating eligible expenses
• Assuming an HSA is available with every health plan
• Expecting to invest healthcare FSA funds

Related pages

• What is an FSA?
• What is an HSA?
• The use-it-or-lose-it rule