Retrospective Rating

Retrospective rating (a "retro" plan) is a loss-sensitive pricing arrangement where your final premium is not locked in at the start of the term — it is recalculated afterward based on the claims your business actually incurs. The plan sets a minimum premium and a maximum premium, and the final figure floats between those two guardrails depending on your incurred losses during the period. If your losses are low, you pay near the minimum; if losses run high, you pay up to the maximum but no further. This directly rewards effective safety and claims management.

Retro plans are typically used by larger or more sophisticated insureds — often in workers' compensation, general liability, and auto — because they require enough premium volume and claim credibility to make the risk-sharing worthwhile. Unlike an experience modifier, which adjusts pricing based on prior years' losses, retrospective rating ties your cost to the current policy period's actual results. That makes it a bet on your own operations: businesses confident in their safety record can capture savings that a fixed-cost policy would never return to them.

The practical nuance is cash flow and volatility. Because losses take time to settle, a retro premium is adjusted through periodic recalculations over several years, and early figures rest on reserves that can move as claims develop. A business pays an initial deposit premium, then true-ups follow. The upside is real savings for clean years; the downside is exposure to additional billings if a large claim hits. Owners should model the maximum premium as a worst-case budget number before choosing a retro over a guaranteed-cost policy.