EMR Guide for FL Contractors [2026]

The experience modification rate — also called the EMR, X-Mod, or experience modifier — is a multiplier applied to your workers’ compensation premium that adjusts your cost up or down based on your claims history relative to similar businesses in your industry. An EMR of 1.0 is the industry average. An EMR below 1.0 means your claims history is better than average, resulting in a premium credit. An EMR above 1.0 means your claims history is worse than average, resulting in a premium surcharge.

For Florida contractors, the EMR is calculated by NCCI using three years of claims data, excluding the most recent policy year. The calculation compares your actual losses to the expected losses for a business of your size and trade.

The EMR is one of the most powerful levers in your workers’ comp premium. A contractor with $500,000 in annual payroll and a base premium of $33,750 (at the 5551 roofing rate of $6.752) would pay $37,125 with an EMR of 1.10 — a $3,375 surcharge. The same contractor with an EMR of 0.85 would pay $28,688 — a $5,062 credit. The difference between a 0.85 and a 1.10 EMR on this account is over $8,400 per year.

NCCI calculates your EMR using a formula that compares your actual losses to your expected losses. The formula has two components: primary losses (the first portion of each claim, capped at a threshold called the split point) and excess losses (the amount above the split point). Primary losses are weighted more heavily than excess losses, which means that claim frequency — the number of claims — has a greater impact on your EMR than claim severity.

The split point in Florida is currently $18,500. This means that for any single claim, the first $18,500 is counted as a primary loss (weighted heavily) and any amount above $18,500 is counted as an excess loss (weighted less). A contractor with five small claims of $5,000 each will typically see a larger EMR impact than a contractor with one $25,000 claim, even though the total losses are the same.

Your EMR is recalculated annually when your policy renews. The three-year experience window rolls forward each year, so a claim from four years ago no longer affects your current EMR.

Claim frequency is the biggest driver. Because primary losses are weighted more heavily than excess losses, having multiple small claims is worse for your EMR than having one large claim of the same total value.

Payroll size affects your expected losses. Larger payrolls produce higher expected losses, which means the formula is more forgiving of actual losses for larger employers. A small contractor with $200,000 in payroll and one $15,000 claim will see a larger EMR impact than a large contractor with $2,000,000 in payroll and the same claim.

Claim closure timing matters. Open reserves — claims that have not been closed — are included in your EMR calculation at their full reserve value. Working with your carrier to close claims promptly and reduce reserves can improve your EMR before your policy renews.

The experience window is three years. Your EMR uses claims from the three policy years ending one year before your current policy year. Claims from four years ago no longer affect your current EMR.

Implement a documented safety program. Fewer claims mean a lower EMR over time. A written safety program with regular toolbox talks, documented training, and a return-to-work policy reduces claim frequency. Carriers also offer schedule credits of 5–15% for contractors with documented safety programs.

Establish a return-to-work program. Lost-time claims have a significantly higher primary loss value than medical-only claims. A return-to-work program that brings injured workers back to modified duty quickly can convert a lost-time claim into a medical-only claim, reducing its EMR impact by up to 70%.

Manage open reserves aggressively. Work with your carrier’s claims adjuster to close claims promptly and reduce reserves to actual anticipated costs. If you believe a reserve is excessive, request a claims review with your carrier.

Verify your EMR calculation. NCCI EMR calculations occasionally contain errors. Request your NCCI experience modification worksheet annually and review it for accuracy. Errors can be corrected through a formal dispute process.

Use the EMR as a competitive advantage. Florida general contractors and project owners increasingly require subcontractors to have an EMR below 1.0 or 0.95 as a condition of bidding. Maintaining a low EMR determines which jobs you can bid.