Group Health Insurance Cost Calculator
Group health insurance is the largest voluntary employee benefit for most businesses. The Kaiser Family Foundation 2023 Employer Health Benefits Survey reports national average premiums of $8,435 per year for single coverage and $23,968 for family coverage, with employers contributing 83 percent and 73 percent respectively. This calculator estimates your total annual plan cost, employer and employee contributions, and per-employee cost for budgeting purposes.
Group health cost formula
Single Employees = Total Employees x (1 - Family %)
Family Employees = Total Employees x Family %
Total Plan Cost = (Single Employees x Single Premium) + (Family Employees x Family Premium)
Employer Cost = (Single Employees x Single Premium x Employer Single %) + (Family Employees x Family Premium x Employer Family %)
Employee Cost = Total Plan Cost - Employer Cost
KFF 2023 national averages are used as defaults. Actual premiums vary significantly by state, insurer, plan design (HMO, PPO, HDHP), industry, and group size.
ACA affordability thresholds (2024)
- Employee-only premium must not exceed 8.39 percent of household income to be considered "affordable" under ACA employer mandate rules for large employers.
- Applicable large employers (ALEs, 50 or more FTEs) face a penalty if they fail to offer affordable, minimum value coverage.
- Small employers (under 50 FTEs) are not subject to the employer mandate but may qualify for the Small Business Health Care Tax Credit if they offer group coverage through SHOP.
- The tax credit is up to 50 percent of employer contributions for qualifying small businesses (fewer than 25 FTEs, average wages under $57,400 in 2024).
Frequently asked questions
How much does group health insurance cost per employee?
According to the Kaiser Family Foundation (KFF) 2023 Employer Health Benefits Survey, the average annual premium for employer-sponsored health insurance was $8,435 for single coverage and $23,968 for family coverage. Employers paid an average of 83 percent of single premiums and 73 percent of family premiums.
What is the minimum employer contribution for group health insurance?
The ACA requires that applicable large employers (50 or more full-time equivalent employees) offer affordable coverage where the employee contribution for self-only coverage does not exceed a set percentage of the employee's household income. For 2024, the affordability threshold is 8.39 percent of household income. Small employers have more flexibility but must contribute to meet insurer minimums (typically 50 percent of the employee premium).
Can employers deduct group health insurance premiums?
Yes. Employer contributions to group health insurance are generally 100 percent deductible as a business expense under IRC Section 106. Employee contributions made through a cafeteria plan (Section 125) reduce taxable wages, benefiting both employer and employee by reducing FICA taxes.
What is the difference between fully insured and self-insured group plans?
A fully insured plan pays a fixed monthly premium to an insurance company, which bears the risk. A self-insured (self-funded) plan has the employer pay claims directly, retaining risk but saving on insurer profit and state premium taxes. Most large employers self-insure; most small employers purchase fully insured plans. Stop-loss insurance is typically purchased to cap per-claim or aggregate annual exposure.
How many employees are required for group health insurance?
Most states require a minimum of 2 employees to qualify for small group coverage. Some insurers require 5 to 10 employees. The ACA defines small group as employers with 1 to 50 employees. Groups of 1 (owner only) may use the individual market or QSEHRA. Groups of 51 or more are in the large group market and are not subject to ACA small group rating rules.
Official sources
- Kaiser Family Foundation: 2023 Employer Health Benefits Survey.
- IRS: Employer Shared Responsibility Provisions.
- Healthcare.gov: Small Business Health Care Tax Credit.
Reviewed by the CalculatorHub team, edited by James Graham, 14 June 2026. See our methodology.