Most contractors know their EMR exists. Fewer understand what’s actually inside it — and almost none are actively managing it the way they should be.
Your Experience Modification Rate is a single number calculated by the National Council on Compensation Insurance (NCCI) that compares your workers’ compensation loss history against other contractors of similar size and trade. An EMR of 1.0 is average. Above 1.0, you pay more than average. Below 1.0, you pay less. Sounds simple. The financial reality is anything but.
What the Number Is Actually Costing You
Start with the premium math. If your workers’ comp base premium is $200,000 and your EMR is 1.25, you’re paying $250,000 — a $50,000 penalty for running a riskier-than-average operation. Drop that EMR to 0.85 and the same base premium costs you $170,000. That’s an $80,000 swing on a single line of coverage, year after year.
But the premium cost is only part of the story. The EMR is increasingly functioning as a prequalification filter. Many general contractors and project owners require a maximum EMR — commonly 1.0 or lower — just to bid on a job. According to the Bureau of Labor Statistics, construction recorded 1,075 fatal work injuries in a recent reporting year, a rate that keeps the industry under intense underwriting scrutiny. An elevated EMR signals to sureties, GCs, and owners alike that your safety program isn’t performing.
That signal hits your bonding capacity directly. Sureties view a rising EMR as an indicator of future loss volatility. A contractor with a deteriorating modification rate will find their bonding limits trimmed or subject to additional conditions — at exactly the moment they’re trying to grow.
How the EMR Is Built — and Where It Goes Wrong
The NCCI EMR formula weighs three years of loss history, excluding the most recent policy year. It weights claim frequency heavily — multiple small claims will hurt your EMR more than a single large one of equivalent total value. That’s a counterintuitive design that many contractors don’t account for when managing claims.
Two of the most common EMR killers: unreported near-misses that eventually become claims, and inadequate return-to-work programs that turn manageable injuries into long-duration claims. A worker who stays out for six months costs your EMR far more than one who returns to modified duty in two weeks — even if the medical costs are identical.
According to OSHA, companies with strong safety programs reduce their injury rates by up to 40%. That reduction compounds over the EMR’s three-year calculation window, with each clean year lowering the modification rate and the premium that follows it.

The Actions That Actually Move the Number
Improving your EMR isn’t mysterious. It’s operational.
First, invest in a formal return-to-work program. Modified duty keeps injured employees on payroll, reduces indemnity costs, and signals to your workers’ comp carrier that you’re managing claims proactively. This is one of the highest-ROI investments a construction company can make.
Second, conduct genuine pre-task planning. Construction Safety Week 2026 (May 4–8) spotlights the “Recognize, Respond, Respect” framework — recognizing high-energy hazards before work begins is exactly the kind of behavioral safety investment that prevents the frequency claims that damage EMRs most.
Third, audit your claims management. Are claims being reported promptly? Is your carrier’s nurse case manager involved early? Are you challenging questionable claims through your broker? Each of these touchpoints affects the reserve — and reserves drive the EMR.
Fourth, review your payroll classifications. Misclassified payroll is one of the most common and correctable sources of premium overpayment. Your broker should audit your class codes at every renewal.
Managing your commercial insurance program with an eye toward EMR improvement is one of the most direct levers a contractor has on long-term cost. Paired with a strong surety bond strategy, a declining EMR can translate into better bonding capacity, lower premiums, and a cleaner risk profile that wins more work. The Risk Synergy Portal at Tooher-Ferraris gives contractors real-time visibility into their program performance.
Ready to take a hard look at your EMR? The team at Tooher-Ferraris has been helping construction businesses lower their cost of risk since 1932. Contact us today to schedule a no-obligation consultation.





