Local assessment officials
Our webpages for local assessment officials include information and tools for assessors, county real property tax (RPT) directors, and other local government officials.
Online Assessment Community (OAC) login
The OAC is a secure website made available by the Office of Real Property Tax Services (ORPTS) to county RPT directors, assessors, and their staff.
Local assessment officials Resources
ORPTS Products
- STAR information for local officials
- Equalization rates
- Agricultural assessment information
- State aid
- State-owned land overview
- Residential assessment ratios
- School district income verification
- Special equalization ratios
- Equalization for coordinated assessment programs
- Property tax cap
- Appraisal methodology for solar and wind energy projects
- Value analysis tools
ORPTS Services
- ORPTS customer service teams
- Training
- Reassessment resources
- Property tax and assessment news
- State Board of Real Property Tax Services
- Managing real property transfer data for local assessment officials
- Improving the effectiveness and efficiency of RPT administration
- ORPTS regional offices
- Pre-decisional collaboration
- Utility valuation
- Forest valuation
- Exemption reporting
- SalesWeb
ORPTS Library
- Municipal profiles
- RPT forms by subject or by number
- Property tax publications
- Legal information
- Property class codes
- Assessment Community Weekly archive
- Assessor manuals
- Current status of property tax-related legislation
- 2023 changes and guidance for 467 and 459-c
- SWIS code list
- Educating the public
- Assessor report instructions
- Rate complaints and procedures
- Aspera SendVault instructions
Recent RPSV4 updates
To install the most recent RPSV4 updates, visit RPSV4 Updates in the Online Assessment Community.
March 17, 2025
2025 cost update: cost_2025
February 28, 2025
2024 exemption updates: RPS2020_6528.exe and db_796.exe
February 10, 2025
Agricultural Assessment Values: Ag_up_2025.exe
STAR credit purge: STAR_credit_purge_2025.exe
Updated: