California Filing Due Date: Individual income tax returns are due by April 15, in most years — or by the 15^th day of the 4^th 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).

California Tax Extension Form: California’s tax extensions are paperless, which means there is no application or written request to submit. As long as your California tax is properly paid on time, you will automatically receive a state tax extension.

California Extension Payment Requirement: An extension of time to file is not an extension of time to pay your California income tax. All state tax payments are due by the original deadline of the return. Any tax not paid by the proper due date will be subject to penalties and interest. You can make a California extension payment online, by credit card, or by check with Form FTB 3519.

To pay online, go to California Web Pay for Individuals: ftb.ca.gov/online/webpay

California Tax Extension Tip: If your California tax liability is zero or you’re owed a state tax refund, California will automatically grant you a filing extension. In this case, you don’t need to do anything in order to obtain a California tax extension.