Where to file California corporate tax return?

Companies based in California need to file their corporate tax return with the Franchise Tax Board (FTB). The preferred and most effective way is by e-filing, which may be done either through FTB-approved tax software or by seeking the services of a tax preparer. Filing electronically assures quicker processing as well as lower errors. Still, in the event of mail filing, the company needs to use the appropriate address depending on whether or not a payment accompanies it. Returns with payments should be sent to PO Box 942857, Sacramento, CA 94257-0501, while returns without payments should go to PO Box 942857, Sacramento, CA 94257-0500.

Corporations have to file the relevant tax return forms, based on their company structure. C corporations have to file Form 100 (Corporation Franchise or Income Tax Return), whereas S corporations have to file Form 100S (S Corporation Franchise or Income Tax Return). Furthermore, tax-exempt organizations are sometimes required to file Form 199 (Exempt Organization Annual Information Return). In case estimated tax payments have to be made, Form 100-ES has to be employed.

California corporate tax returns are due on April 15 if the entity is a C corporation and March 15 for S corporations, or on or before the 15th day of the fourth or third month, respectively, following the close of the tax year. Corporations can request an extension but the taxes due are still expected to be paid by the original deadline without incurring penalty and interest. To ensure compliance and access the latest information, corporations should visit the Franchise Tax Board (FTB) website and consider electronic filing options for greater convenience.

Find more information: Navigating the California Corporate Tax Return Process