11.84%
Ad Valorem functions in keeping with the parameters of the property tax system in the State of Oklahoma.
11.84%
12%
22.85%
2026 Business Personal Property Valuation Schedule
2026 Capitalization Rate Study
(Coming soon)
2026 Ad Valorem Reference Guide
Quality Jobs Incentive Program Information
Municipal Boundary Changes
TowerCO
ASR Advanced Search
Ad Valorem County Detail Assistance/GIS Data Warehouse
Ad Valorem County Detail Locator Tool
Manufactured Homes & Lien Information Search System
Oklahoma County Assessor Contacts | County Assessor Association
Ad Valorem Publications and Guides
Ad Valorem Annual Reports
Oklahoma Tax Warrant System
Heavy Equipment Rental Fee Reporting
Form 900-XM Application for Five-Year Ad Valorem Tax Exemption for Oklahoma Manufacturing or Research and Development Facilities
Form 904-3 General Asset Listing
Form 904-A Grouped Asset Listing
Form DS-1 Monthly County Return Document Stamp Sales
Form 905 Storm Shelter Exemption
Business Personal Property Rendition - Petroleum Related
Form 935-MH Manufactured Home Personal Property Rendition