HRA vs HSA vs FSA: How Each Account Works, What Each Costs, and When to Recommend One

Bottom line: The right account depends on the health plan your client can or does offer. HSAs deliver the greatest long-term value for employees — triple tax-advantaged, portable, and investable — but require pairing with a qualifying High Deductible Health Plan. HRAs give employers maximum control over design and cost without employee contribution complexity, but they come in four distinct types with different eligibility rules and IRS limits. FSAs are the most widely available option — no HDHP required — but the use-it-or-lose-it structure limits their strategic value compared to HSAs. CPAs need to understand the tax treatment at the employer and employee level; insurance brokers need to understand which plan designs are compatible with each account type and how they affect ACA affordability analysis. Both advisors are frequently the first call when a client's benefits package is being designed or reconsidered.

How Each Account Works

HRA (Health Reimbursement Arrangement): An employer-funded arrangement under IRC §106 that reimburses employees for qualified medical expenses on a tax-free basis. Employees cannot contribute — only the employer funds the account. HRAs are not standalone plans; they are employer benefit arrangements that integrate with or substitute for group health coverage depending on the type elected. Four primary types exist: the traditional HRA (integrated with a group health plan), the Qualified Small Employer HRA (QSEHRA), the Individual Coverage HRA (ICHRA), and the Excepted Benefit HRA (EBHRA).

HSA (Health Savings Account): A tax-advantaged savings account owned by the individual employee or self-employed person under IRC §223, paired exclusively with a qualifying High Deductible Health Plan (HDHP). Both employers and employees can contribute. Unused balances roll over indefinitely, can be invested, and remain with the employee permanently — even after leaving the employer. The HSA's triple tax advantage (pre-tax contributions, tax-free growth, and tax-free withdrawals for qualified medical expenses) makes it the most tax-efficient health benefit structure available under current law.

FSA (Flexible Spending Account): An employer-sponsored benefit under IRC §125 (a cafeteria plan) that allows employees to set aside pre-tax dollars for qualified medical expenses. No HDHP requirement. Employers may also contribute. The "use it or lose it" rule applies — funds not spent by the plan year's deadline (subject to limited carryover or grace period options) are forfeited to the employer. A separate Dependent Care FSA (DCFSA) operates under the same structure but covers dependent care expenses rather than medical costs.

Who Can Contribute

S-Corp owner restriction: S-Corp shareholders who own more than 2% of the company cannot participate in a tax-advantaged FSA or HRA on the same basis as rank-and-file employees. Greater-than-2% S-Corp shareholders may contribute to an HSA if enrolled in a qualifying HDHP, but employer-paid health premiums must be included in the shareholder's W-2 wages under §§ 105 and 106 and are then deducted on Schedule 1. For the full S-Corp owner health benefit analysis and how it interacts with entity structure, see C-Corp vs S-Corp vs LLC: The Complete Entity Selection Guide for CPAs.

Self-employed sole proprietors: May contribute to an HSA if enrolled in a qualifying HDHP. Cannot participate in employer-sponsored FSAs or HRAs as employees. Can establish a QSEHRA or ICHRA only in a business context as an employer with eligible employees — not to cover themselves as self-employed individuals.

2025 Contribution Limits

Traditional HRAs integrated with a group health plan have no IRS dollar cap — the employer sets the contribution amount. ICHRA contributions are also uncapped; the employer determines the allowance per employee class. Employer contributions to any HRA type are fully deductible as ordinary and necessary business expenses under IRC §162(a).

The HSA annual limit is a combined cap — it covers all contributions from all sources (employer and employee) in aggregate. If an employer contributes $1,500 to an employee's self-only HSA, the employee can add up to $2,800 before reaching the $4,300 ceiling.

Tax Treatment — Employer and Employee

HRA:

• Employer: Contributions are fully deductible under IRC §162(a). The employer bears all funding cost — no employee contribution is permitted.
• Employee: Reimbursements are excluded from gross income under IRC §106. No FICA, no federal income tax, no W-2 reportable wages for traditional HRAs and ICHRAs. QSEHRA amounts must appear on the employee's W-2 in Box 12, Code FF, but remain excluded from taxable income.

HSA:

• Employer contributions: Excluded from employee income under IRC §106 and not subject to FICA. Deductible for the employer. The exclusion is one of the most tax-efficient employer contribution structures available — no FICA on either side.
• Employee contributions through payroll: Pre-tax under a Section 125 cafeteria plan arrangement — excluded from both FICA and federal income tax. This is more advantageous than the Schedule 1 path because it also avoids payroll taxes.
• Employee contributions directly (self-employed or outside payroll): Deductible above-the-line on Schedule 1 under IRC §223. Reduces adjusted gross income. Does not reduce self-employment income for Schedule SE purposes — HSA contributions are a Schedule 1 deduction, not a Schedule C expense, and have no effect on SE tax. For the distinction between deductions that reduce SE tax versus those that reduce only income tax, see How to Minimize Self-Employment Tax for High-Earning Business Clients.
• Qualified withdrawals: Tax-free for qualified medical expenses under IRC §223(f)(1). Non-medical withdrawals before age 65 are subject to income tax plus a 20% additional tax under IRC §223(f)(4). After age 65, non-medical withdrawals are subject to income tax only — no penalty — making a fully funded HSA a secondary tax-deferred retirement account.

FSA:

• Employee contributions: Pre-tax under the IRC §125 cafeteria plan structure — excluded from FICA and federal income tax through payroll. Unlike HSAs, FSA contributions cannot be claimed as a Schedule 1 deduction; participation requires employer plan sponsorship.
• Employer contributions: Deductible under IRC §162(a) and excluded from employee income under IRC §106.
• Reimbursements: Tax-free for qualified medical expenses under IRC §105(b).

HDHP Requirement

HSAs require enrollment in a qualifying High Deductible Health Plan — this is the most significant structural constraint. A client who cannot or does not want to offer an HDHP to employees cannot offer HSAs. There are no exceptions. Both fully insured and self-funded plans can be structured to meet HDHP thresholds; for how the choice of plan funding structure affects this and other design decisions, see Fully Insured vs Self-Funded Health Plans: Which Structure Fits Your Employer Clients?.

2025 HDHP thresholds (IRS Rev. Proc. 2024-25):

The plan must have first-dollar exposure for non-preventive services — any plan that covers services other than preventive care before the deductible is met disqualifies employees from HSA contributions. An employee enrolled in Medicare Part A or Part B cannot contribute to an HSA even if covered by an otherwise-qualifying HDHP.

HRAs and FSAs have no HDHP requirement — this is their primary structural advantage for clients whose workforce cannot accept or cannot afford a high-deductible plan design.

HSA compatibility with other benefits: An employee cannot contribute to an HSA while enrolled in a general-purpose HRA or general Healthcare FSA — both provide first-dollar coverage that conflicts with HDHP requirements. A Limited-Purpose FSA (LP-FSA) restricted to dental, vision, and preventive care is compatible with HSA enrollment. Structuring an LP-FSA alongside an HDHP/HSA arrangement is a common benefit design that allows employees to cover predictable dental and vision costs pre-tax while building HSA balances for broader healthcare expenses.

Portability and Rollover Rules

The HSA's portability is a genuine recruitment and retention advantage. An employee who builds a multi-year HSA balance — particularly one invested in low-cost index funds — carries that tax-free pool into retirement, where healthcare costs are among the largest expenses most retirees face. FSA and HRA balances built under employer plans do not follow the employee.

Full Side-by-Side Comparison

When to Recommend an HRA

QSEHRA: For employers with fewer than 50 full-time equivalent employees who do not offer a group health plan. The QSEHRA reimburses employees for individual market premiums and qualified medical expenses on a tax-free basis — up to $6,350 individual / $12,800 family in 2025 — without requiring the employer to establish group coverage. An employee receiving QSEHRA funds who is otherwise eligible for a Marketplace premium tax credit must reduce the PTC by the QSEHRA benefit amount (IRC §36B(c)(2)(C)(iv)). QSEHRA is typically the right recommendation when the small employer finds group coverage unaffordable or administratively burdensome and wants a defined-contribution approach that lets employees choose their own plans.

ICHRA: For employers of any size who want employees to purchase ACA-compliant individual market coverage using tax-free employer reimbursements. ICHRAs have no contribution cap and allow employers to set different contribution amounts by employee class (full-time, part-time, seasonal, geographic location). An affordable ICHRA offer counts as a valid offer of minimum essential coverage for ACA employer mandate purposes under IRC §4980H — which means sizing the ICHRA allowance correctly is critical to avoiding §4980H(b) penalties. For the ACA employer mandate's affordability thresholds and how ICHRA reimbursement levels interact with the 50-FTE compliance framework, see ACA Employer Mandate: The 50-Employee Threshold, Coverage Requirements, and Penalties Explained. For the complete broker's guide to ICHRA class design, allowance benchmarking, affordability safe harbor math, and required employee notices, see How to Evaluate and Implement an ICHRA for Employer Clients.

Traditional HRA (integrated with group health): For larger employers who offer a group health plan and want to supplement it with reimbursements for deductibles, copays, and other out-of-pocket costs. No contribution cap applies. The employer controls the design and funding level entirely.

When to Recommend an HSA

Recommend an HSA-compatible plan design when:

• The employer can offer — and employees will accept — an HDHP. Lower monthly premiums offset the higher deductible for most healthy employees; the HSA creates a tax-sheltered reserve for the gap.
• Employees are relatively young, healthy, and can build HSA balances over several years. The investment option and indefinite rollover make the account increasingly valuable as a retirement health-cost reserve.
• The employer wants to contribute meaningfully to employee health accounts — employer HSA contributions are the most tax-efficient benefit contribution available (no FICA on either employer or employee side).
• The client is a high-income self-employed individual with qualifying HDHP coverage who wants to maximize above-the-line deductions reducing AGI.

For CPAs: Clients enrolled in HDHPs who are not funding their HSA to the annual limit are leaving a significant tax benefit on the table. At $4,300 per year invested for 20 years at 6% growth, an HSA generates over $167,000 in tax-free healthcare savings — entirely excluded from income at contribution, during growth, and at withdrawal for qualified expenses. Incorporate HSA max-funding into the annual tax planning conversation for every HDHP-covered client.

When to Recommend an FSA

Recommend an FSA when:

• The employer's group health plan is not an HDHP and transitioning to one is not feasible or desired.
• Employees have predictable, recurring qualified medical expenses — orthodontia, regular prescriptions, corrective lenses — where the use-it-or-lose-it risk is manageable and the pre-tax benefit is clear.
• The employer wants the simplest possible pre-tax benefit structure without HDHP design requirements.
• Dental and vision are the primary out-of-pocket exposure — an LP-FSA covers these while preserving HSA eligibility for employees on HDHPs.

FSA + HSA design: Offering a Limited-Purpose FSA restricted to dental and vision alongside an HDHP/HSA arrangement is a well-established benefit design. Employees capture pre-tax treatment for predictable dental and vision costs through the LP-FSA while building HSA balances for broader healthcare expenses. The LP-FSA's scope restriction must be clearly documented in the plan document and communicated to employees during open enrollment to preserve HSA eligibility — including in the Summary of Benefits and Coverage and election materials distributed under the required ERISA notice calendar. For the full open enrollment notice and documentation process, see the Open Enrollment Compliance guide for employer health plans.

Bottom Line

The choice between HRA, HSA, and FSA is driven primarily by the underlying health plan design and by the employer's goals for flexibility, cost control, and employee recruitment value. For employers offering or transitioning to an HDHP, HSAs are almost always the optimal employee benefit vehicle: superior tax treatment, long-term accumulation potential, and a portability advantage that FSAs and HRAs cannot match. For employers that cannot or will not offer an HDHP, FSAs provide a straightforward pre-tax savings vehicle. For small employers without a group health plan at all, a QSEHRA or ICHRA offers a defined-contribution alternative that maintains tax efficiency without the administrative overhead of group coverage. CPAs advising on compensation design and self-employment income need to understand the tax treatment distinctions — particularly the HSA's Schedule 1 nature (which reduces income tax but not SE tax) and the S-Corp owner rules that limit FSA and HRA participation. Insurance brokers need to understand which plan types are HDHP-compatible, how ICHRAs interact with the ACA employer mandate, and how FSA carryover rules affect open enrollment design. Clients whose CPA and broker work in coordination get both layers of the analysis. Benefits brokers designing these multi-year arrangements — structuring ICHRAs, QSEHRAs, and FSA plans year after year — should also confirm their own claims-made E&O policy's retroactive date reaches back through all prior advisory periods; plan design errors can surface multiple plan years later when penalty notices arrive. For how occurrence vs claims-made triggers apply to professional liability for benefit advisors, see Occurrence vs Claims-Made E&O Coverage: Which Policy Structure Protects Your Clients?.

FAQs

What is the difference between an HRA and an HSA?

An HRA (Health Reimbursement Arrangement) is employer-funded only — employees cannot contribute. An HSA (Health Savings Account) is owned by the employee and can be funded by both the employer and the employee under IRC §223. HSAs require enrollment in a qualifying High Deductible Health Plan (HDHP); HRAs do not. HSA balances are fully portable — the employee keeps the account and all accumulated funds regardless of employment status. HRA balances are controlled by the employer and typically forfeited when employment ends. The HSA's triple tax advantage and portability generally make it more valuable for employees over time; the HRA gives employers more design control and eliminates employee contribution complexity.

Can an employee have both an HSA and a Healthcare FSA?

Not simultaneously — with one exception. A general-purpose Healthcare FSA provides first-dollar coverage for medical expenses, which violates the HDHP requirements that enable HSA contributions. The exception is a Limited-Purpose FSA (LP-FSA) restricted solely to dental, vision, and preventive care. Employees enrolled in an HDHP and contributing to an HSA can simultaneously participate in an LP-FSA without affecting HSA eligibility. The LP-FSA covers predictable dental and vision costs; the HSA covers broader medical expenses.

What are the 2025 HSA contribution limits?

For 2025, the IRS limits are $4,300 for self-only HDHP coverage and $8,550 for family coverage (IRS Rev. Proc. 2024-25). Individuals age 55 or older can contribute an additional $1,000 catch-up contribution under IRC §223(b)(3). These limits apply to combined contributions from all sources — employer and employee together cannot exceed the annual cap.

What happens to an FSA balance if an employee leaves mid-year?

FSA balances not claimed for qualified expenses are forfeited to the employer when employment ends, after the plan's run-out period (typically 90 days after the termination date). Employees can submit claims for expenses incurred before the last day of employment during that run-out window, but cannot cash out the balance, roll it to a new employer's FSA, or convert it to an HSA. This forfeiture risk — particularly for employees who front-load contributions early in the plan year — is the FSA's primary structural disadvantage relative to the HSA's indefinite rollover.

Are HSA contributions tax-deductible for self-employed individuals?

Yes. Self-employed individuals enrolled in a qualifying HDHP can contribute to an HSA and deduct contributions on Schedule 1 of Form 1040 (line 13) under IRC §223. The deduction reduces adjusted gross income but does not reduce self-employment income for Schedule SE purposes — unlike Schedule C business expenses, it has no effect on the SE tax calculation. Self-employed individuals cannot participate in employer-sponsored FSAs as employees and cannot establish HRAs for their own benefit.

How does a QSEHRA differ from an ICHRA?

A QSEHRA (Qualified Small Employer HRA) is available only to employers with fewer than 50 full-time equivalent employees that do not offer a group health plan. It carries annual IRS contribution limits ($6,350 individual / $12,800 family in 2025 per IRS Notice 2024-80). An ICHRA (Individual Coverage HRA) is available to employers of any size — including those already offering group coverage to other employee classes — and has no IRS contribution cap. A key ACA distinction: an affordable ICHRA offer can satisfy the employer mandate's minimum essential coverage requirement under IRC §4980H; a QSEHRA offer does not constitute an employer plan offer for mandate purposes, and employees receiving QSEHRA funds may still access Marketplace premium tax credits (reduced by the QSEHRA amount).

Does an employer's HSA contribution count toward the employee's annual limit?

Yes. The annual HSA contribution limit is a combined ceiling covering contributions from all sources — employer and employee combined. If an employer contributes $2,000 to an employee's HSA for self-only coverage in 2025, the employee can contribute up to $2,300 more (the $4,300 limit minus the $2,000 employer amount) before the cap is reached. Contributions exceeding the annual limit are subject to a 6% excise tax under IRC §4973.

Arvori helps CPAs and insurance brokers track employee benefit structures, model HRA, HSA, and FSA tax treatment across client portfolios, and coordinate benefits compliance with compensation and entity planning. Learn more at arvori.app.