Experience Modifications

Accessing authoritative experience data to support accurate, equitable pricing 

Experience modifications are a critical component of workers’ compensation pricing, directly linking an employer’s premium to its historical loss experience. PCRB serves as the trusted source for experience modification data in Pennsylvania, ensuring information is calculated, maintained, and distributed using consistent, objective standards. 

Experience Modifications Hero

Supporting Accuracy & Transparency

Through PCRB’s tools and services, members can access reliable Experience Modification information that supports underwriting decisions, employer communications, regulatory compliance, and confidence in a fair statewide rating system. 

By providing consistent access to Experience Modification data and supporting documentation, PCRB helps ensure: 

  • Premiums reflect verified loss and payroll data 
  • Employers receive clear, supportable explanations of Experience Modifications 
  • Carriers apply experience rating consistently across risks 
  • Regulators can rely on uniform, data-driven standards 

This structured approach reinforces trust in Pennsylvania’s workers’ compensation system and supports long-term market stability. 

Start Here

Search and download experience modification data

Experience Modification information is available through the Rating and Underwriting Reference, PCRB’s centralized resource for authoritative rating data. In addition to experience rating modifications, users can access: 

  • Merit Rating adjustments 
  • Classification descriptions and the Underwriting Guide 
  • Loss cost and rate information 

This consolidated access point supports efficient research, consistent application of rules, and informed pricing decisions. 

Understand the Details

Experience Rating Worksheets

Experience rating worksheets provide a detailed view of how an employer’s experience modification was calculated. Worksheets display payroll and loss experience over the prescribed experience period and include all statistical elements and formulas used in the calculation. 

How to request 

  • Worksheets may be ordered through PCRB Special Services at policyinquiries@pcrb.com or (215) 320-4442 
  • Fee: $15 per worksheet 
  • Requests from parties other than the carrier of record must include a letter of authority on original employer letterhead authorizing release of data  

Analyze Historical Experience

Abstract of Experience

An Abstract of Experience summarizes payroll and loss information for an employer by policy year and provides individual claim details on a graduated scale. Abstracts are available for both rated and non-rated employers and are commonly used for underwriting review, historical analysis, and employer inquiries. 

How to request  

  • Available through PCRB Special Services at policyinquiries@pcrb.com or (215) 320-4442 
  • Fee: $15 per employer 
  • Requests from parties other than the carrier of record require a letter of authority on original employer letterhead