Versions of California Revenue and Taxation Code 18543 - For taxable years beginning on or after January 1, 2023, the ... on LawServer 2024 California Revenue and Taxation Code 18543 – For taxable years beginning on or after January 1, 2023, the … 2023 California Revenue and Taxation Code 18543 – For taxable years beginning on or after January 1, 2023, the …