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📋 '''Guaranteed-cost policy''' is an insurance arrangement in which the [[Definition:Premium | premium]] charged at the beginning of the policy period is fixed and will not be adjusted retroactively based on the [[Definition:Policyholder | insured's]] actual [[Definition:Loss experience | loss experience]] during that term. This stands in contrast to [[Definition:Loss-sensitive program | loss-sensitive programs]] — such as [[Definition:Retrospectively rated policy | retrospectively rated policies]], [[Definition:Large deductible program | large deductible plans]], or [[Definition:Self-insured retention (SIR) | self-insured retention]] structures — where the final cost fluctuates with claims outcomes. For the buyer, a guaranteed-cost policy offers budgetary certainty: the price is known upfront, and the [[Definition:Insurance carrier | carrier]] absorbs the variability of losses.

🔄 Pricing a guaranteed-cost policy requires the insurer to build all expected [[Definition:Loss cost | loss costs]], [[Definition:Expense loading | expense loadings]], and [[Definition:Profit margin | profit margins]] into the upfront premium, since there is no mechanism to recapture adverse experience after the fact. [[Definition:Underwriting | Underwriters]] rely on historical loss data, [[Definition:Exposure | exposure]] characteristics, and [[Definition:Actuarial science | actuarial]] projections to set the rate, often applying [[Definition:Experience modification factor | experience modification factors]] and [[Definition:Schedule rating | schedule rating]] credits or debits. Because the insurer bears the full [[Definition:Underwriting risk | underwriting risk]], guaranteed-cost premiums tend to be higher per dollar of expected loss than the net cost of a well-performing loss-sensitive program — essentially embedding a risk charge for the certainty the buyer receives.

💡 Small and mid-sized businesses gravitate toward guaranteed-cost policies because these organizations often lack the financial capacity or risk-management infrastructure to absorb claims volatility through [[Definition:Self-insurance | self-insurance]] or retrospective adjustments. From the carrier's perspective, a book of guaranteed-cost business offers premium stability and simpler administration but requires disciplined pricing; if [[Definition:Loss ratio (L/R) | loss ratios]] deteriorate across the portfolio, the insurer cannot look back to individual policyholders for additional funding. The guaranteed-cost model remains the dominant structure in personal lines and the backbone of standard [[Definition:Commercial insurance | commercial]] programs, serving as the baseline against which all alternative risk-transfer mechanisms are measured.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Retrospectively rated policy]]
* [[Definition:Loss-sensitive program]]
* [[Definition:Experience modification factor]]
* [[Definition:Self-insured retention (SIR)]]
* [[Definition:Premium]]
* [[Definition:Underwriting]]
{{Div col end}}

Definition:Guaranteed-cost policy - Revision history

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