Professional Liability vs General Liability Cost Comparator
Compare estimated annual premiums for Professional Liability (Errors & Omissions) and General Liability insurance based on your business profile, revenue, and coverage limits.
Formulas Used
Professional Liability (E&O) Annual Premium:
PL_Base = Revenue × Industry_PL_Rate (% of revenue, industry-specific)
PL_Base = clamp(PL_Base, Industry_Floor, Industry_Ceiling)
PL_Premium = PL_Base × Limit_Factor × Deductible_Factor
× Claims_Factor × Location_Factor × Employee_Factor
General Liability (CGL) Annual Premium:
GL_Base = (Revenue ÷ 1,000) × Industry_GL_Rate ($ per $1,000 revenue)
GL_Base = clamp(GL_Base, Industry_Floor, Industry_Ceiling)
GL_Premium = GL_Base × Limit_Factor × Deductible_Factor
× Claims_Factor × Location_Factor × Employee_Factor
Combined Bundle Premium:
Combined = (PL_Premium + GL_Premium) × (1 − 0.08) [8% bundle discount]
Key Rating Factors:
- Limit Factor: Relativities vs. $1M baseline (ISO-based): 0.65× ($250K) → 1.90× ($5M) for PL; 0.72× ($300K) → 1.28× ($2M) for GL
- Deductible Credit: Higher deductibles reduce premium: $0 = 1.00×, $25K = 0.70× (PL); $0 = 1.00×, $5K = 0.83× (GL)
- Claims Surcharge: 0 claims = 1.00×; 1 = 1.20× (PL) / 1.15× (GL); 3+ = 1.75× (PL) / 1.60× (GL)
- Location Factor: Low-risk states = 0.88–0.90×; High-risk states (CA, NY, FL, TX) = 1.18–1.22×
- Employee Factor: 1–5 employees = 1.00×; 100+ employees = 1.60–1.75×
Assumptions & References
- Professional Liability (E&O) base rates expressed as a percentage of annual revenue, ranging from 0.15% (restaurant) to 1.50% (healthcare), based on IRMI E&O rating guidelines and Insureon industry benchmarks (2023–2024).
- General Liability base rates use ISO Commercial General Liability (CGL) class-rated approach: rate per $1,000 of revenue, ranging from $0.35/K (technology) to $1.80/K (construction).
- Coverage limit relativities are derived from ISO published limit factor tables and standard E&O limit schedules used by major admitted carriers.
- Deductible credits reflect standard underwriting schedules: higher deductibles transfer more risk to the insured, reducing the insurer's expected loss and thus the premium.
- Claims surcharges reflect typical experience modification concepts: each prior claim signals higher future risk, increasing the premium by 15–25% per claim.
- Location factors reflect state-level litigation environment, jury award trends, and regulatory costs. High-risk states (CA, NY, FL, TX) carry 18–22% surcharges per NAIC state cost index data.
- Bundle discount of 8% reflects typical savings when purchasing PL and GL from the same carrier or as part of a Business Owner's Policy (BOP); actual discounts range 5–15% (Hiscox, Chubb, Hartford BOP programs).
- Premium floors ensure minimum viable premiums consistent with carrier minimum earned premium requirements.
- All estimates are illustrative. Actual premiums depend on full underwriting review, specific operations, loss history, contractual requirements, and state-filed rates.
- Sources: IRMI (International Risk Management Institute), ISO (Insurance Services Office) CGL Manual, NAIC (National Association of Insurance Commissioners) data, Insureon 2024 Cost Report, Hiscox Small Business Insurance Benchmarks.