#income tax refund status
California Income Taxes and State Tax Forms
Prepare and efile Your California State Tax Return
The efile tax software makes it easy for you to prepare and efile your California state tax return. Your basic state tax return forms will be automatically populated with the data you entered on your federal tax return. Any additional state forms will be listed for you and will be ready for you to complete and efile. You can prepare and efile your California state tax return (resident, nonresident, or part-year resident) together or separately from your federal tax return. View the federal tax return filing requirements. You can prepare and efile multiple state tax returns on efile.com for one price.
California Income Tax Filing Deadline
The regular tax deadline to file/efile a California state income tax return is April 15.
Tax Deadline Date
Type of Income Tax Return
Filing Deadline/Due Date Description
2015 California State Income Tax Return
Due date for California State Income Tax Returns-income tax filing deadline
2015 California State Tax Extension
Due date for California automatic extensions
October 17, 2016
2015 California State Tax Return
Last day to efile a 2015 California State Income Tax Return for tax extension filers and late efilers
CA State Tax Forms
California grants an automatic 6-month extension of time to file a state income tax return (through October 17, 2016). You don t have to apply for the extension, and no form is required.
If you owe taxes, you must still pay the amount due by April 18 or you will begin to accrue penalties and interest. If you file later than October 17, 2016, you will be penalized for failing to file as well as for failing to pay.
Automated extension granted
Important Reminder! If you are efiling a California tax extension, you may need to efile a federal tax extension as well.
CA Tax Amendment
California state tax amendments cannot be efiled; they can only be mailed. Learn how to prepare and file an amended California tax return.
Important Reminder! If you are filing a California tax amendment, you may need to file a federal tax amendment as well.
2014 Past Year CA State Forms
California state tax forms for past Tax Years cannot be prepared and efiled. You will need to print, fill out, and mail the tax forms to the California Franchise Tax Board.