Your experience modifier is the most expensive three decimals on your financial statements. See exactly what yours is costing you — and what moving it fifteen hundredths would do to your bottom line.
Rough inputs work fine — refine later.
What your EMR costs · What moving it saves
Premium = Payroll ÷ 100 × Base Rate × EMR. That's the workers' comp formula, stripped to essentials. Your experience modifier compares your firm's three-year loss history to industry average for your class codes.
Base rates shown here approximate California construction pure premium rates. Your actual rate depends on specific WCIRB classifications, your carrier's loss costs multiplier, and any schedule rating debits or credits. Treat as directional — a 10–15% variance either way is normal.
What this tool doesn't capture: deductible credit programs, retrospective rating plans, dividend-paying mutuals, group programs, and the OCIP/CCIP analysis that could make your mod irrelevant on big projects. The real conversation starts here.