FSA vs HSA vs HRA: Pros and Cons for Small Business Employers

FSAs, HSAs, and HRAs let your employees pay for medical expenses with pretax dollars, but each works differently in your payroll system. Flexible spending accounts (FSA) are employer-established accounts with annual use-it-or-lose-it rules and process through payroll deductions. Health savings accounts (HSA) require high-deductible health plans, roll over indefinitely, and process through payroll as pretax contributions. Health reimbursement arrangements (HRA) are employer-funded reimbursement accounts with no employee payroll deduction. You reimburse employees directly for qualified expenses according to the HRA plan design.

Offering an FSA, HSA, or HRA can make you competitive for talent at your size. Compare the three account types to find the right fit for your team.

SurePayroll ® By Paychex is a full-service payroll platform built for small business owners.

What are FSAs, HSAs, and HRAs?

FSAs, HSAs, and HRAs share some features but work differently for your business and your employees.

Flexible Spending Account (FSA)

Healthcare FSAs are employer-established benefit plans that let employees set aside pretax dollars to pay for qualified health expenses. You can choose to contribute as the employer, but it’s not required. Employees can use these accounts for a variety of FSA-eligible medical costs, such as copayments, prescriptions, and some over-the-counter medications.

Key Features

• Tax savings. Pretax contributions through payroll deductions reduce taxable income for you and your employees.

• Immediate access. Employees get access to their full annual election amount at the start of the plan year.

• Employer contributions. You can choose to contribute to employees’ FSAs. It’s your decision. If you contribute as the employer, Affordable Care Act (ACA) rules limit how much you can add to employees' FSAs. Check current IRS guidance for the applicable cap.

• Use-it-or-lose-it rule. Unused funds don’t roll over to the next year. You can offer a grace period or a limited carryover option.

You set up FSA deductions as pretax in your payroll system. Employees elect a contribution amount during open enrollment, and you withhold it from each paycheck before calculating taxable wages.

Health Savings Account (HSA)

An HSA is a tax-advantaged account available for individuals enrolled in a high-deductible health plan (HDHP). Employees must meet additional IRS eligibility criteria to participate. They can use an HSA to save for medical expenses not covered by their health insurance.

Key Features

• Triple tax benefit. Contributions are tax-advantaged (employee deductions are pretax and employer contributions are tax-deductible), funds grow tax-free, and withdrawals for qualified medical expenses are tax-free.

• Portability. Funds stay with the employee, even if they change jobs.

• Investment opportunities. Employees can invest funds and potentially grow their savings over time.

• Rollover. Unused HSA funds roll over from year to year, so employees build savings for future healthcare expenses.

HSA contributions process as pretax payroll deductions for employees. If you contribute as the employer, you add those as a separate line item. Both employee and employer contributions appear in Box 12 of Form W-2 at year-end.

Health Reimbursement Arrangements (HRA)

An HRA is an employer-sponsored plan that reimburses employees for qualified medical expenses. Unlike HSAs and FSAs, only you as the employer contribute to HRAs.

Key Features

• Customizable plans. You ​​​can ​design the plan to cover the medical expenses you choose to reimburse.

• Tax benefits. Reimbursements are tax-free. You deduct contributions as a business expense.

• Reimbursements. Employees submit claims for eligible expenses, and you reimburse them tax-free.

• Cost control. You can set annual reimbursement limits to manage your total employer cost. You don’t set up payroll deductions for HRAs. You reimburse employees directly for qualified expenses they’ve already paid. Qualified HRA reimbursements are generally tax-free, and traditional HRAs typically do not require employee W-2 reporting. Certain HRA designs may have separate reporting requirements.

Pros and cons: FSA vs HSA vs HRA for employers

FSA (Flexible Spending Account)

Pros:

• Employee FSA contributions are pretax through payroll deductions. With SurePayroll, you set them up once and they process on your schedule.

• Employees get immediate access to their full annual election at the start of the plan year, no waiting for funds to accumulate.

• You decide whether to contribute as an employer. It’s optional and fully in your control.

• You set eligibility rules when you establish the plan, including coverage for part-time employees. Note: Section 125 plans must meet IRS nondiscrimination rules and cannot favor highly compensated employees.

Cons:

• Unused funds generally don’t roll over unless you offer a grace period or limited IRS-allowed carryover (you can’t offer both). You manage the deadlines and the administrative follow-up.

• Year-end pressure on employees to use funds before they forfeit can increase end-of-year claims to process.

HSA (Health Savings Account)

Pros:

• Employee HSA contributions are pretax through payroll deductions. With SurePayroll, you set them up once and they process on your schedule.

• Funds roll over indefinitely. No year-end pressure, no forfeitures, no grace period to manage.

• You can choose to contribute as an employer, which strengthens your benefits package without requiring it every year. Employer HSA contributions are tax deductible.  

Cons:

• Eligibility requires enrollment in an HSA-qualified high-deductible health plan (HDHP) and no disqualifying coverage, such as certain FSAs or Medicare. Not every employee setup qualifies.

• Form W-2 reporting obligations apply for both employee and employer contributions (Box 12). ​​Your payroll system can handle this, but you need to set it up correctly.

HRA (Health Reimbursement Arrangement)

Pros:

• You design the plan and set annual reimbursement limits, giving you full control over your cost structure.

• Only you contribute. There’s no employee payroll deduction to set up or manage.

• Reimbursements are tax-free for your employees, and you can deduct contributions as a business expense.

Cons:

• No payroll deduction component. You reimburse employees directly for each expense and track claims outside your payroll system.

• Administrative workload can increase with the number of claims you process, depending on how the plan is administered. More employees using the benefit may mean more manual tracking.

"Sure Payroll has made my opening of a new medical service company payroll a breeze. From inputting employee information, 401k and automated deposits, I could not have imagined payroll being so easy and quick!" -  Thomas, Trustpilot review

Finding the right health spending account for your business

Choosing the right plan depends on your employees’ needs and your priorities as an employer.  

Employee needs. Understand your employees’ healthcare needs and preferences. Employees with high out-of-pocket expenses might choose an HSA; those seeking more predictable costs might prefer an FSA or HRA.

Costs and tax benefits. FSAs, HSAs, and HRAs all offer tax advantages, but your costs and administrative work differ. HSAs offer employees long-term savings potential because unused funds roll over indefinitely. HRAs may provide ongoing reimbursement support depending on plan design. FSAs deliver more immediate tax advantages through payroll deductions.

Business goals. If retaining talent is your priority, an HSA with employer contributions makes you competitive. If controlling cost is the priority, an FSA or HRA may be a better fit for your size.

Benefits provider. Work with a reputable benefits provider to set up and administer FSAs, HSAs, or HRAs. They provide guidance on plan design, documentation, and compliance requirements.

For more than 25 years, thousands of small business owners have trusted SurePayroll for payroll that runs on their schedule.

How to process FSA and HSA deductions in your payroll system

You track FSA and HSA contributions, apply pretax treatment, and report at year-end through your payroll system. With SurePayroll, you set up the deductions once and employee contributions process on your schedule.

See how SurePayroll supports small business payroll.