How to file a business state tax extension for California?
Last modified 6/24/2020 8:15:52 AM EST | Added by ExpressExtension Team

Applicable To
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California automatically grants business tax extension when there are no taxes due, and you don't need to file a separate form for the extension. If your business owes taxes, pay the tax due on or before the California business tax filing deadline to get a 6-month extension. 

Due date and Penalty 

The due date to pay business income tax and filing the tax return/extension is March 16, 2020. In case of late filings, you will incur the penalty for unpaid tax dues as well as for late filings.  

Payment of tax dues

You can choose to make a payment either by Check/Money Order or use the electronic payment options that are available. To make payment in Check or Money Order, use the Automatic Extension form applicable for your business 

  1. Form FTB 3539 - (Payment Voucher for Automatic Extension for Corporations and Exempt Organizations)
  2. Form FTB 3538 - (Payment for Automatic Extension for LPs, LLPs, and REMICs)
  3. Form FTB 3537 - (Payment for Automatic Extension for LLCs)
  4. Form FTB 3522 - (LLC Tax Voucher to pay a business's annual tax of $800)

To pay electronically, check out the payment options available.

California State Forms and the due dates

Business Type State Tax Form Due date (Fiscal year) Due date (Calendar year) Extension Period State Tax Payment form
C Corporation                 Form 100   15th day of the 4th month  April 15  6-month FTB 3539

S Corporation    


Form 100S 15th day of the 3rd month  March 16   6-month  FTB 3539
LLCs               Form 568   15th day of the 3rd month   March 16  6-month  FTB 3537
Partnerships              Form 565   15th day of the 3rd month  March 16 7-month   FTB 3538
Exempt Organizations              
Form 199  15th day of the 5th  month   November 15 6-month   FTB 3539

For more information on the California business tax extension, click here.

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