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California Income Taxes and State Tax Forms


Start Federal and California State Tax Returns

efile California tax return
"The Golden State"

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 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
April 18, 2018 2017 California State Income Tax Return Due date for California State Income Tax Returns-income tax filing deadline
April 18, 2018 2017 California State Tax Extension Due date for California automatic extensions
October 15, 2018 2017 California State Tax Return Last day to efile a 2017 California State Income Tax Return for tax extension filers and late efilers

View all state tax return filing deadlines here.

Find federal income tax return filing deadlines here.

2017 CA State Tax Forms

All of the following California state tax forms are supported by the software:

Form/Schedule Description Can I efile this form?  
Form 592-B Resident and Nonresident Withholding Tax Statement





Form 593 Real Estate Withholding Tax Statement
Form 540 California Resident Income Tax Return 
Form 540NR California Nonresident Income Tax Return
Schedule P Alternative Minimum Tax
Form 540X Amended Return
Form 3506 Child and Dependent Care Expenses Credit
Form 3800 Tax Computation for Children with Investment Income
Schedule CA Income Adjustments
Schedule S Other State Tax Credit
Worksheet Sales and Use Tax Worksheet

CA State Tax Forms That Cannot Be efiled

California State Tax Withholding Form

Form/Description Instructions
Form DE-4 California State Personal Exemption Worksheet


CA Tax Extension

Extension Form California Extension Instructions How to File

No Form

California grants an automatic 6-month extension of time to file a state income tax return (through October 15, 2018). 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 15, 2018, 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.

2016 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.

Form/Schedule Description How to File
Form 540 Resident Income Tax Return

Download, complete, print out, sign, and mail

Form 540NR Nonresident or Part-Year Resident Income Tax Return
Form 3503 Natural Heritage Preservation Credit
Form 3506 Child and Dependent Care Expenses Credit
Form 3507 Prison Inmate Labor Credit
Form 3800 Tax Computation for Certain Children with Investment Income
Form 3801 Passive Activity Loss Limitations
Form 3803 Parents' Election to Report Child's Interest and Dividends
Form 3805E Installment Sale Income
Form 3805P Additional Taxes on Qualified Plans (Including IRAs) and Other Tax-Favored Accounts
Form 3805V Net Operating Loss (NOL) Computation and NOL and Disaster Loss Limitations-Individuals, Estates, and Trusts
Form 5805 Underpayment of Estimated Tax by Individuals and Fiduciaries
Form 5805F Underpayment of Estimated Tax by Farmers and Fishermen
Form 5870A Tax on Accumulation Distribution of Trusts
Schedule S Other State Tax Credit

Where's My Refund? - Check Your California State Tax Refund Status

If you efile a California tax return, your refund will generally be processed in 7-10 days. Your refund may take 8 weeks to process if you file on paper.

Check your official CA tax refund status online.

CA efile Error Codes

View a list of all California State efile Income Tax Return Error Reject Codes.

California Tax Facts

CA Income Tax:

Individual income is taxed across several tax brackets at graduated tax rates. For single filers and married people filing separately:

  • 1% for the first $7,850 of taxable income
  • 2% for taxable income between $7,851 and $18,610
  • 4% for taxable income between $18,611 and $29,372
  • 6% for taxable income between $29,373 and $40,773
  • 8% for taxable income between $40,774 and $51,530
  • 9.3% for taxable income between $51,531 and $263,222
  • 10.3% for taxable income between $263,223 and $315,866
  • 11.3% for taxable income between $315,866 and $526,443
  • 12.3% for taxable income at $526,444 and above

For married couples filing jointly and heads of households, the income brackets are doubled (though the tax rates stay the same).

There is an additional 1% tax (The Mental Health Services Tax) levied on taxable incomes of $1 million and above.

CA Sales Tax:

California has a state sales tax rate of 6.50% and an additional local sales tax rate of 1%, for a total of 7.50% for most goods and services. Certain food items are nontaxable.

More information on California Sales Tax

CA Personal Property Tax:

In California, all real property is taxed based on the fair-market value, and property taxes are collected locally.

Odd Tax Fact:

A "jock tax" is a special income tax levied on traveling athletes, entertainers, and other nonresident performers who worked in the state at some point during the year. There are now "jock taxes" in more than 40 states, but the very first state to levy such a tax was California. The tax was originally levied in 1991, just in time to tax Michael Jordan's income after the Chicago Bulls beat the LA Lakers in the NBA finals.

CA State Tax Agency:

For more information, you can visit the website of The California Franchise Tax Board.

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