CA 540 Information

Complete your federal income tax return (Form 1040, Form 1040A, or Form 1040EZ) before you begin your California Form 540. Use information from your federal income tax return to complete your Form 540. Complete and mail Form 540 by April 15, 2015.

Link to official form info:

Link to official form info for 540

Tax Reminder works year round to keep official tax form info up-to-date for California and the rest of the USA. The IRS and states change their forms often, so we do the hard work for you of figuring out where the official form info is located.

To access the official link to form CA 540 and get reminded when it's due, sign up for a free Tax Reminder account:

  • Upcoming Due Dates in the Next Year:*
  • Monday Apr 15, 2024
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    * Due dates are based on the filing requirements for this form and may vary depending on your tax year.

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