What is an experience modification factor for workers comp?
What is an experience modification factor for workers compensation?
An experience modification factor, commonly called an experience mod or e-mod, is a multiplier applied to your workers compensation base premium. It adjusts what you actually pay based on your business’s own claims history compared to other businesses in the same industry and size class.
How does the experience mod formula work in Georgia?
A mod of 1.0 is the industry average. Below 1.0 means your claims history is better than average, which reduces your premium. Above 1.0 means your losses have exceeded expectations, which raises it. The math is direct: if your base premium is $20,000 and your mod is 1.25, you pay $25,000. If your mod is 0.85, you pay $17,000.
In Georgia, the National Council on Compensation Insurance (NCCI) administers the experience rating formula (see Georgia workers compensation employee count requirements). NCCI pulls three years of your payroll and loss data, excluding the most recent policy year, which has not yet fully developed. The formula does not treat all losses equally, it separates each claim into a primary portion (weighted heavily) and an excess portion (weighted less). This structure means claim frequency hits your mod harder than a single large loss. Several small claims can raise a mod as much as one serious one.
For example, a Georgia landscaping company with five minor injury claims in two years may see a higher experience mod than a company in the same class that had one moderately serious claim, because the formula penalizes frequency more heavily than severity above the primary threshold.
What is the true cost of a single claim across three renewal cycles?
The three-year lookback creates a compounding effect many business owners do not anticipate. A $50,000 injury claim filed in year one can elevate your mod for the next three policy years. The resulting premium increases can total $15,000 or more per year, meaning the full cost of that one claim, across three renewal cycles, can far exceed the original payout.
For example, a roofing contractor in Georgia whose employee sustains a $40,000 back injury might watch their mod climb from 1.0 to 1.35, adding $14,000 or more per year in extra premium for three straight renewals, a $42,000 downstream cost on top of the original claim payout.
How can a business work to lower its experience mod?
Businesses that work to lower their mod over time generally focus on a few areas:
- Documented workplace safety programs and regular training
- Return-to-work programs that bring injured employees back in modified-duty roles, which limits total incurred losses
- Timely claims reporting and active management with the carrier
- Accurate payroll classification, since misclassified employees can distort the expected-loss base the formula uses
Does a low experience mod affect more than just the premium?
A mod below 1.0 carries practical weight beyond the premium discount. General contractors and project owners frequently require subcontractors to show a mod at or below a set threshold, often 1.0 or lower, as a condition of bidding on work (see whether 1099 contractors need workers compensation coverage).
Your current mod, the claims driving it, and the payroll data behind it are all available through your NCCI experience rating worksheet (see what workers compensation insurance covers). A licensed advisor at Olive Cover, the consumer brand of Olive Insurance Services, LLC, can walk through that worksheet with you, identify which losses are still affecting your mod, and explain your trajectory heading into the next renewal. Request a free coverage review to get started.