Inspector Liability Coverage Calculator
Estimates recommended Errors & Omissions (E&O) and General Liability coverage limits for home, commercial, and specialty inspectors based on revenue, inspection volume, and risk profile.
Formulas Used
E&O Base Limit: max(Annual Revenue × 1.0, $100,000)
E&O Adjusted Limit (raw):
E&Oraw = Base × Type Multiplier × Property Value Factor × High-Value Surcharge × Claims Loading × Experience Factor
- Type Multiplier: Residential=1.0, Mixed=1.25, Commercial=1.5, Specialty=1.75
- Property Value Factor: Avg Property Value ÷ $300,000 (capped 0.75–3.0)
- High-Value Surcharge: 1 + (% High-Value Props ÷ 10) × 0.10
- Claims Loading: 0 claims=1.0×, 1=1.15×, 2=1.35×, 3+=1.60×
- Experience Factor: <2 yrs=1.15×, 2–5=1.0×, 6–10=0.95×, >10=0.90×
E&O Limit: Rounded up to nearest standard tier (100k, 250k, 500k, 750k, 1M, 1.5M, 2M, 3M, 5M)
E&O Aggregate: E&O Limit × 2
GL Per Occurrence: max($1,000,000, Inspectors × $500,000) × GL Type Multiplier → rounded to tier
GL Aggregate: GL Per Occurrence × 2
Premium Range: E&O Limit × (1.5%–2.5%) + GL Limit × (0.5%–1.0%), adjusted by claims & experience
Risk Score (0–100): Weighted composite of inspection type (25%), property value (20%), claims history (25%), experience (15%), high-value exposure (15%)
Assumptions & References
- E&O (Professional Liability) covers claims arising from errors, omissions, or negligence in inspection reports.
- General Liability covers bodily injury and property damage occurring during an inspection.
- Base E&O limit anchored at 1× annual revenue per ASHI, InterNACHI, and standard underwriting guidelines.
- $300,000 used as the U.S. median home value benchmark for property value factor normalization (U.S. Census Bureau / NAR 2023).
- Premium rate ranges (1.5%–2.5% E&O; 0.5%–1.0% GL) reflect typical inspector insurance market rates; actual premiums vary by insurer, state, and underwriting.
- Standard coverage tiers reflect common policy limits offered by major inspector E&O carriers (e.g., InspectorPro, OREP, Pearl Insurance).
- Claims history loading factors based on standard actuarial experience rating adjustments.
- This calculator provides estimates only. Consult a licensed insurance professional for binding coverage recommendations.
- Does not account for umbrella/excess liability, workers' compensation, commercial auto, or tools & equipment coverage.