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📊 '''Retrospectively rated policy''' is an insurance arrangement — most common in [[Definition:Workers' compensation insurance | workers' compensation]] and [[Definition:General liability insurance | general liability]] lines — where the final [[Definition:Premium | premium]] the [[Definition:Policyholder | policyholder]] pays is adjusted after the [[Definition:Policy period | policy period]] based on the insured's own [[Definition:Loss experience | loss experience]] during that term. Unlike a guaranteed-cost policy, which fixes the premium upfront regardless of claims, a retrospectively rated (or "retro") program ties cost directly to outcomes, creating a powerful financial incentive for the insured to invest in [[Definition:Loss control | loss control]] and [[Definition:Risk management | risk management]].

⚙️ At inception, the insured pays a deposit or standard premium. Once the policy period closes and losses begin to develop, the [[Definition:Insurance carrier | carrier]] applies a retrospective rating formula that factors in a basic premium (covering the insurer's fixed expenses and [[Definition:Profit load | profit load]]), converted losses (actual incurred losses adjusted by a [[Definition:Loss conversion factor (LCF) | loss conversion factor]]), a [[Definition:Tax multiplier | tax multiplier]], and both a minimum and maximum premium boundary. The minimum premium ensures the carrier recovers its baseline costs even if the insured has zero losses, while the maximum premium caps the insured's exposure so a single catastrophic [[Definition:Claim | claim]] doesn't produce an unbounded bill. Adjustments typically occur annually for several years as [[Definition:Loss development | loss development]] matures, meaning the final settled premium may not be known for three to five years after the policy expired.

💡 Large and mid-market commercial insureds gravitate toward retrospectively rated policies because favorable claims outcomes translate directly into lower costs — a tangible reward that flat-rated programs cannot offer. For the [[Definition:Insurance carrier | insurer]], retro programs reduce [[Definition:Adverse selection | adverse selection]] risk by aligning the insured's economic interest with prudent [[Definition:Safety program | safety practices]] and prompt [[Definition:Return to work | return-to-work]] efforts. However, the complexity of retro rating demands sophisticated [[Definition:Actuarial analysis | actuarial analysis]], transparent [[Definition:Loss reporting | loss reporting]], and ongoing dialogue between the insured, [[Definition:Insurance broker | broker]], and carrier. Organizations that lack the cash-flow flexibility to absorb premium swings or the scale to make the formula's statistical assumptions credible are generally better served by [[Definition:Guaranteed-cost policy | guaranteed-cost]] or [[Definition:Large deductible policy | large deductible]] alternatives.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Experience rating]]
* [[Definition:Large deductible policy]]
* [[Definition:Guaranteed-cost policy]]
* [[Definition:Loss-sensitive program]]
* [[Definition:Workers' compensation insurance]]
* [[Definition:Incurred but not reported (IBNR)]]
{{Div col end}}

Definition:Retrospectively rated policy - Revision history

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