CA Educ Code Section 41760.2

On or before November 15 of each year, the county auditor of each county shall furnish to the Superintendent of Public Instruction the calculated amount of secured tax receipts, the calculated amount of unsecured tax receipts, estimated prior year tax receipts, and estimated timber tax receipts of each school district or portion of school district situated within his or her county. On or before August 15, after close of each fiscal year, the county auditor of each county shall furnish to the Superintendent of Public Instruction actual secured tax receipts, actual unsecured tax receipts, actual prior year tax receipts, actual timber tax receipts, and any other appropriate taxes or subventions of each school district or portion of school district situated within his or her county. This information shall be forwarded on forms prescribed by the Superintendent of Public Instruction.