California Filing Due Date: Individual income tax returns are due by April 15 — or by the 15th day of the 4th month following the end of the taxable year (for fiscal year filers). Extended Deadline with California Tax Extension: California offers a 6-month extension, which moves the filing deadline to October 15 (for calendar year filers).When are California state taxes due?
California state individual income tax returns are due by April 15 (for calendar year taxpayers). If you are not ready to file your state tax return by that date, you can get an automatic 6-month State of California tax extension and have until October 15 to file your return. California tax extensions require no form to be filed to apply for a ...Does California have state income tax?
California does not have any reciprocal agreements with any other states regarding taxes. This means you have to file state tax returns for both states unless it’s an income tax-free state.