💰 Workers' Comp Premium & EMR Estimator

📘 What is the EMR (Experience Modification Rate)?

The EMR — also called the EMod, X-Mod or experience modifier — is a multiplier applied to your manual premium that rewards or penalizes your loss history. It compares your actual workers' comp losses to the expected losses for a business of your size and class. 1.00 is the industry average.

How it is calculated

Rating bureaus look at a 3-year experience window (the three policy years ending one year before the rating date — e.g. a 2026 mod uses 2022, 2023 and 2024). Claim frequency is weighted more heavily than a single large loss, so several small claims hurt your mod more than one big one. The result is multiplied straight into your premium: a 1.20 EMR means you pay 20% more than an identical average employer; a 0.85 EMR means you pay 15% less.

How to lower your EMR

• Reduce claim frequency — fewer incidents move the mod most; invest in hazard control and training.
• Return-to-work / light duty — getting injured workers back on modified duty cuts indemnity (lost-time) cost, which drives the mod.
• Active claims management — report fast, manage medical care, close claims and reduce open reserves.
• Verify your data — audit your mod worksheet and payroll/class codes for errors before they cost you.

Standard & who sets your mod

In most US states the mod is produced under NCCI (National Council on Compensation Insurance) experience rating. Several states run their own independent rating bureaus with different formulas — notably California (WCIRB), New York (NYCIRB), Pennsylvania, plus Delaware, Indiana, Massachusetts, Michigan, Minnesota, New Jersey, North Carolina and Wisconsin. Confirm the rules and rates that apply in your state.