When evaluating the financial impact of employer-sponsored health benefits, the comparison between a traditional group health plan and a Health Reimbursement Arrangement (HRA) comes down to risk, flexibility, and long-term cost predictability, not premium dollars alone. Traditional health plans often carry a higher, more volatile price tag because of insurance premiums, administrative fees, and claims risk. HRAs, by contrast, let employers set a fixed per-employee allowance, which gives them much more control over annual health benefit spending.
To give you a concrete answer: for many small to mid-sized employers, offering an HRA, especially an Individual Coverage HRA (ICHRA) or Qualified Small Employer HRA (QSEHRA), can reduce employer healthcare costs compared to a fully insured group plan. Reported savings vary widely. A 2026 survey of benefits brokers put the average at about 15%, while some employers moving off high-cost group plans report savings of 20% to 50%. The exact figure depends on employee demographics, plan design generosity, and geographic location.
1. Premium vs. Allowance: The Core Cost Driver
In a traditional group health plan, the employer typically pays a fixed monthly premium per employee, plus administrative fees, and bears the risk of annual premium increases. Family premiums rose 6% to 7% in each of the last three years, according to KFF's Employer Health Benefits Survey. Over time, these costs can escalate unpredictably. With an HRA, the employer defines a monthly allowance (for example, $500 per employee per month). ICHRAs have no federal cap on that allowance; QSEHRAs cap annual reimbursements at $6,450 for self-only and $13,100 for family coverage in 2026. Employees then buy their own individual health insurance and get reimbursed for premiums and other covered expenses up to the allowance. The employer's total cost is capped at the allowance, with no exposure to premium increases or claims volatility.
Two conditions attach to that cap. The employee has to be enrolled in qualifying coverage to use the money: individual market coverage or Medicare for an ICHRA, minimum essential coverage for a QSEHRA. QSEHRAs are also limited to employers with fewer than 50 full-time employees; ICHRAs have no size limit.
- Group plan cost: Premiums + claims administration + stop-loss insurance (for self-funded plans) + broker fees.
- HRA cost: Allowance amount per employee + administrative fees, which vary by vendor and commonly run from a few dollars to about $29 per employee per month.
2. Administrative and Compliance Costs
Traditional health plans require significant HR and compliance resources: managing COBRA, HIPAA privacy, ACA reporting (Forms 1094/1095-C), plan documents, and wellness program rules. ERISA compliance alone can add thousands of dollars a year for legal and filing support. HRAs, especially ICHRAs and QSEHRAs, are simpler to administer. Many employers use a third-party HRA administrator that handles reimbursement processing, compliance, and employee support. Administrative overhead is often lower than managing a group plan, though the exact amount depends on the administrator and the size of the workforce.
Key Administrative Cost Comparisons
- Group plan: Requires SPD documents, annual Form 5500 filings for larger plans, ACA employer mandate reporting, and often a benefits consultant.
- HRA: Still requires an ERISA plan document and SPD, but most small HRAs are exempt from Form 5500 because they cover fewer than 100 participants and are paid from general assets. No ACA employer mandate reporting for QSEHRAs or for ICHRAs at employers under 50 FTEs.
3. Risk and Predictability
One of the biggest hidden costs of a traditional group plan is claims risk. Even with a fully insured plan, employers face annual premium increases tied to their group's claims experience. A single catastrophic claim (for example, a $200,000 cancer treatment) can drive a double-digit rate increase the next year. With an HRA, the employer's liability is limited to the allowance amount per employee. The employee bears the risk of choosing a plan that fits their health needs. This shifts cost uncertainty away from the employer, making budgeting far easier.
4. Employee Behavior and Cost Sharing
In a group plan, employees often have limited plan choices and may over-utilize care because deductibles and copays are low. This can push up total plan costs for the employer. With an HRA, employees are incentivized to choose cost-effective health plans because they are spending their allowed funds. Many employees opt for high-deductible health plans (HDHPs) paired with HSAs, which encourages more cost-conscious healthcare decisions. Over time, this can lead to lower overall healthcare spending in the system, though the effect is hard to quantify.
- Group plan example: Employee chooses a $600/month PPO plan; employer pays 80% ($480/month). Total employer cost: $5,760/year per employee.
- HRA example: Employer offers a $400/month allowance; employee chooses a $400/month HDHP. Total employer cost: $4,800/year per employee, saving $960/year per person.
5. The Caveats and Trade-offs
While HRAs often reduce employer costs, they are not a one-size-fits-all solution. Employers must consider:
- Employee retention: Some employees prefer the simplicity and low out-of-pocket costs of a group PPO. Transitioning them to an HRA may cause frustration or turnover.
- Tax advantages: Group plan premiums are tax-deductible and not taxable income to employees. HRA reimbursements are also tax-free to employees, but only when the employee maintains the required coverage: minimum essential coverage for a QSEHRA, individual market coverage or Medicare for an ICHRA. The employer can deduct the reimbursements the same way. Both are tax-efficient.
- Market access: In some rural areas, individual insurance markets may lack sufficient plan options, forcing employers to stick with group coverage.
- Compliance with the ACA: Large employers (50+ FTEs) must still offer affordable, minimum-value coverage or face penalties under the ACA's employer mandate. ICHRAs can satisfy this requirement if designed correctly, but the affordability test differs from a group plan: it measures the allowance against the lowest-cost silver marketplace plan in the employee's area.
6. Breaking Down the Numbers: A Real-World Example
Let's compare a typical small business (15 employees) based in Texas:
- Group plan cost: Average premium $550/employee/month = $99,000/year total. Add 5% admin fees = $4,950. Total: $103,950/year.
- ICHRA plan cost: Employer sets allowance of $450/employee/month = $81,000/year. Admin fees $10/employee/month = $1,800. Total: $82,800/year.
Savings: about $21,000/year (about 20%), with no premium increase risk. For larger groups, the savings depend on how costly the existing plan is, but the same logic applies.
The Employee Side of the Ledger
The money an employer saves with an HRA is often a cost the employee now carries. Under a group plan, the employer covers a large share of the premium. Under an HRA, the employer pays a fixed allowance, and the employee pays whatever the individual market premium exceeds that allowance. Individual market premiums are age-rated, so an older worker pays more for the same coverage. Employees who would otherwise qualify for marketplace premium tax credits cannot use them alongside an ICHRA, and a QSEHRA reimbursement stays tax-free only while the employee keeps minimum essential coverage. For a younger, higher-wage workforce that is comfortable choosing its own plans, an HRA is a clear win. For an older workforce, or one with many family plans, the allowance does not stretch as far, and the savings an employer reports read as a cost shift to employees.
7. Conclusion: Which Is Cheaper?
For most small to mid-sized employers, offering a health reimbursement arrangement yields lower total costs than a traditional group health plan, primarily because of fixed allowances, a reduced administrative burden, and zero claims risk exposure. The decision still has to balance cost savings against workforce preferences and strategic goals. Many businesses use a hybrid approach: maintain a group plan for full-time staff and offer an ICHRA for part-time or younger workers. Either way, the comparison shows that HRAs give employers budget predictability while passing some choice and cost control to employees.