Statewide Property Tax Administration System
This page is designed to provide software vendors and county in-house IT personnel with information on the COMPUTER STANDARDS FOR A UNIFORM AND COMMON PROPERTY TAX MANAGEMENT SYSTEM, 50 IAC 26. This is an administrative rule promulgated by the Department of Local Government Finance (DLGF) under Indiana Code 6-1.1-31.5-2 that governs, in part, the certification of software vendors providing services to local officials involved in the administration of the property tax in Indiana.
- Update to 50 IAC 26 Code Lists [Information Systems] June 12, 2025
Vendor Certification
- Phase I Vendor Certification
- Phase II Vendor Certification
- Phase III Local Certification and Validation
Certification Status Maps
- Annual Adjustment Vendors
- Computer-Aided Mass Appraisal (CAMA) Vendors
- Oil and Gas Vendors
- Personal Property Vendors
- Sales Disclosure Vendors
- Tax Billing Vendors
Related Memoranda
- 2025 Legislative Session Implementation - September 8, 2025
- 2025 Gateway Budget Code List - October 28, 2024
- Gateway Budget Upload Specifications - September 12, 2023