Health Savings Accounts and Flexible Spending Accounts can both help employees set aside money for eligible health care expenses. Their names sound similar, and both may offer valuable tax advantages, but they work differently.
The better choice depends on the health plan available to you, how much medical care you expect to use, whether you want to carry unused money forward, and how comfortable you are estimating your expenses for the coming year.
Before making your Open Enrollment elections, take time to understand what each account offers and which rules apply to your employer’s benefits.
What Is an HSA?
A Health Savings Account, commonly called an HSA, allows eligible individuals to set aside money for qualified medical expenses. To contribute to an HSA, you generally must be enrolled in an HSA-eligible health plan and meet other eligibility requirements.
HSA funds may be used for qualified expenses such as deductibles, copays, coinsurance, prescriptions, and certain other medical, dental, and vision costs.
One of the most important features of an HSA is that the account belongs to the employee. The money remains available from year to year, and the employee keeps the account if they change employers, change health plans, or retire.
Depending on the account provider, employees may also be able to invest part of their HSA balance after meeting certain balance requirements. This can make an HSA useful for both current health care expenses and longer-term planning.
When Might an HSA Make Sense?
An HSA may be a good fit for an employee who is enrolled in an eligible plan and wants greater flexibility over how and when health care dollars are used.
It may be especially appealing to someone who:
- Wants unused funds to roll over from year to year
- Would like to build savings for future medical expenses
- Prefers an account that stays with them after leaving an employer
- Is comfortable paying more of the initial cost of care under a higher-deductible plan
- Wants the option to save, spend, or potentially invest the account balance
An HSA can be valuable, but the health plan itself still matters. Employees should compare the deductible, monthly premium, provider network, prescription coverage, employer contributions, and expected out-of-pocket costs before choosing an HSA-eligible plan.
What Is an FSA?
A Health Flexible Spending Account, commonly called an FSA, is an employer-sponsored benefit that allows employees to set aside pretax money for eligible health care expenses.
Unlike an HSA, an FSA is generally connected to the employer. Employees typically elect an annual contribution amount during Open Enrollment, and that amount is deducted from their paychecks throughout the plan year.
A major advantage of many health FSAs is that the full annual election may be available at the beginning of the plan year, even though the employee contributes to the account gradually through payroll deductions.
For example, an employee who elects an annual FSA amount may be able to use the full elected amount for an eligible expense early in the year, subject to the terms of the employer’s plan.
When Might an FSA Make Sense?
An FSA may work well for an employee who expects predictable health care expenses during the coming year.
It may be a useful choice for someone who:
- Has regular prescriptions, appointments, therapies, or planned procedures
- Expects recurring dental or vision expenses
- Wants access to the full annual election early in the plan year
- Is comfortable estimating upcoming expenses
- Is not eligible to contribute to an HSA
An FSA can help employees plan for expected expenses, but careful budgeting is important. FSA funds are generally subject to the plan’s rules for unused balances. Some employers may offer a limited carryover or grace period, while other plans may require employees to use the money by a specific deadline. Employees should review their employer’s plan documents rather than assume unused funds will remain available.
The Most Important Differences
Although both accounts can be used for qualified health care expenses, several differences may affect an employee’s decision.
Eligibility
An HSA generally requires enrollment in an HSA-eligible health plan and compliance with additional eligibility rules.
An FSA is offered through an employer and does not usually require enrollment in a specific high-deductible health plan, although the employer determines who may participate.
Ownership
An HSA belongs to the individual employee.
An FSA is sponsored by the employer and is generally tied to employment and the employer’s plan.
Unused Money
Unused HSA funds remain in the account and continue rolling over from one year to the next.
Unused FSA funds may be forfeited unless the employer’s plan includes an allowed carryover or grace period.
Changing Contributions
Employees may generally adjust HSA contributions during the year, subject to plan administration and annual contribution limits.
FSA elections are usually made during Open Enrollment and generally cannot be changed during the plan year unless the employee experiences an eligible qualifying event.
Access to Funds
With an HSA, employees generally have access to the amount that has already been contributed to the account.
With many health FSAs, the full annual elected amount is available at the beginning of the plan year.
Can You Have Both an HSA and an FSA?
Employees generally cannot contribute to an HSA while also participating in a standard health FSA that reimburses medical expenses.
However, some employers offer a limited-purpose FSA that is designed to work alongside an HSA. A limited-purpose FSA generally covers eligible dental and vision expenses rather than standard medical expenses.
Because account eligibility can be affected by an employee’s other coverage, including coverage through a spouse, employees should review the rules carefully before enrolling. IRS Publication 969 provides guidance on HSAs, health FSAs, and other tax-favored health arrangements.
Questions to Ask Before Choosing
Before making an election, employees should consider more than the account name or tax advantage.
Ask yourself:
- Which medical plans make me eligible for each account?
- How much is the plan deductible?
- Does my employer contribute money to the HSA or FSA?
- What health care expenses do I expect next year?
- Do I have regular prescriptions or specialist visits?
- Am I planning dental work, glasses, contacts, or a procedure?
- How much could I afford to pay early in the year?
- What happens to unused funds?
- Can I keep the account if I leave my employer?
- Does my spouse have an FSA or other coverage that could affect my HSA eligibility?
These questions can help employees compare the complete benefit package rather than looking at the spending account by itself.
There Is No Universal Best Choice
An HSA is not automatically better because unused funds roll over. An FSA is not automatically better because the full election may be available at the beginning of the year.
The right fit depends on the employee’s health plan, expected expenses, financial situation, employer contributions, and comfort with risk.
Someone who wants to build long-term health care savings may prefer an HSA-eligible plan. Someone with predictable expenses and access to a traditional health plan may find an FSA easier to use. In some cases, the most valuable factor may be the employer contribution rather than the account type.
During Open Enrollment, review the medical plan and spending account together. Understanding how the deductible, premium, employer funding, account rules, and expected medical costs work together can help you make a more confident decision.
The Maddock & Associates Benefits Support Team is available to help employees understand how their employer-sponsored benefits work. For personal tax advice or questions about individual eligibility, employees should consult a qualified tax professional.
