The California state tax table can be found at the official website of the State of California Franchise Tax Board, ftb.ca.gov. In addition to the current tax table, there is also a tax calculator and tax tables from previous years available on the site.
The State of California Franchise Tax Board releases two tax tables annually, including one for taxpayers filing forms 540 or 540NR and another for those filing form 540-2EZ. The tax calculator included on the site only calculates taxes for forms 540 and 540NR, so taxpayers filing form 540-2EZ must use the tables to calculate their taxes. All that is needed to use any of these resources is a taxpayer's filing status and taxable income.