ProCentury Insurance Company’s average rate increase by +7.43% — effective 9/1/2026
09/11/2026
ProCentury Insurance Company has filed new California workers’ compensation base rates with the California Department of Insurance for policies effective September 1, 2026.
How are average rates changing?
| Issuing Company | Average Rate
9/1/2025 | Average Rate
9/1/2026 | % Change |
|---|
| ProCentury Insurance Company | 5.79 | 6.22 | +7.43% |
*Average rate calculation does not include per capita or per race rates (7707 – Firefighters – volunteers, 7722 – Police, Sheriffs – volunteers, or 8278 – Jockeys).
Does the average change apply to every policy?
Not necessarily. A carrier’s average rate change provides useful context, but individual class rates may move differently. The effect on a specific policy depends on the classifications and exposures involved.
The examples below show how some of ProCentury Insurance Company’s individual advisory rates are changing compared with the prior policy period.
| Class – Description | Advisory Rate
9/1/2025 | Advisory Rate
9/1/2026 | % Change |
|---|
| 8389 - Auto/Truck Repair Facilities | 3.93 | 4.41 | +12.21% |
| 9050 - Hotels | 7.51 | 8.38 | +11.58% |
| 9080 - Restaurants – full service | 3.42 | 3.81 | +11.40% |
| 3632 - Machine Shops | 3.58 | 3.55 | -0.84% |
| 8046 - Stores–auto/truck parts/accessories | 4.83 | 4.76 | -1.45% |
| 8388 - Rubber Tire Dealers | 5.49 | 5.36 | -2.37% |
What does this mean for an individual account?
The average rate increase is only a starting point. To understand the potential effect on a specific policy, review the applicable classifications and compare how those rates changed.
With WorkCompare, users can generate a Pre-Quote Estimate to evaluate how current rate changes may affect potential pricing before formal quotes arrive.