Data field · Geographic area

Claim severity trend

The change in total claim cost severity over a stated historical window, claim maturity, cohort, and valuation basis.

Who carries it ↓

2Data sources

2Providers

0Free to access

Sources that carry it

2 sources

Workers Compensation Research Institu…

CompScope Benchmarks

Standing commercial family of coordinated annual and state workers’ compensation benchmark reports. The current 2026 edition compares 18 state systems and documents total costs per claim, component cost and benefit measures, and historical changes primarily from 2020 through 2025 at multiple claim maturities, based on experience through 2025 for injuries through 2024. The family includes 12 individual state reports identified WC-26-06 through WC-26-17. Reports are delivered by authenticated download to members or temporary members; no API, batch enrichment, public schema, or machine-readable full file is documented.

Paid Full file Unknown 21 fields

Verisk

ISO Forms, Rules, and Loss Costs

Commercial U.S. advisory insurance-content family spanning commercial and personal lines. It supplies policy forms, rating rules, prospective loss costs and loss-adjustment-expense treatment, pricing circulars, and documented actuarial methodology. Licensed customers can download current and immediately prior loss costs, plus percentage change, by licensed line and jurisdiction through Consolidated Loss Costs Download in ISOnet. It does not establish a particular insurer's adoption, deviation, multiplier, or regulatory approval.

Paid Full file National US 9 fields

Questions it helps answer

Industry claim severity benchmarks Claim severity trend benchmarks Applicable advisory loss costs Advisory rating classification and territory structure Advisory rating actuarial support Advisory rating-plan revisions

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