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Tax Software 2020–21

The 2020–2021 Principal Apportionment Tax Software is used by county offices of education and county auditors to report school district and county local property tax revenue.


Principal Apportionment Tax Software

Tax Software, v2020.20.00
For use by county offices of education and county auditors

Tax 2020 v20.00 (Windows) Installation File (EXE)


Known Problems, Fixes, and Workarounds

Installation Guide (DOCX)

User Guide (DOCX)

Data Reporting Instruction Manual (Tax Software Supplement) (DOCX)

Contact Information

For assistance or technical support on how to install the software, contact Zandra Black by phone at 916-324-4547 or by email at [NOTE: the previous contact information is outdated. Please contact the Principal Apportionment Section at or 916-324-4541].

For assistance on completing the data entry screens, send an email to

Questions:   Principal Apportionment Section | | 916-324-4541
Last Reviewed: Thursday, August 17, 2023
Recently Posted in Software & Forms