California State Withholding Form: Easy Filing Guide

The California state withholding form, also known as the DE 4 form, is a crucial document for employees and employers in the state of California. The form is used to determine the amount of state income tax to be withheld from an employee's wages. In this article, we will provide a comprehensive guide on how to file the California state withholding form, including the requirements, instructions, and deadlines.
Introduction to California State Withholding Form

The California state withholding form is a mandatory document that must be completed by all employees in the state of California. The form is used to determine the amount of state income tax to be withheld from an employee’s wages, based on their filing status, number of allowances, and other factors. The form is typically completed by the employee and submitted to the employer, who is then responsible for withholding the correct amount of state income tax from the employee’s wages.
Who Needs to File the California State Withholding Form?
The California state withholding form is required for all employees in the state of California, including:
- Full-time and part-time employees
- Temporary and seasonal employees
- Independent contractors (in some cases)
Employers are also required to complete and submit the form for each of their employees, as part of their payroll tax obligations.
How to Complete the California State Withholding Form

Completing the California state withholding form is a relatively straightforward process. Here are the steps to follow:
- Download the DE 4 form from the California Employment Development Department (EDD) website or obtain a copy from your employer.
- Complete the form by providing your personal and employment information, including your name, address, Social Security number, and employment status.
- Choose your filing status and number of allowances. The number of allowances you claim will affect the amount of state income tax withheld from your wages.
- Sign and date the form.
- Submit the completed form to your employer.
California State Withholding Form Instructions
Here are some additional instructions to keep in mind when completing the California state withholding form:
Filing Status: Choose your filing status from the following options: single, married, head of household, or qualifying widow(er).
Number of Allowances: Claim the number of allowances you are eligible for, based on your filing status and personal circumstances. The more allowances you claim, the less state income tax will be withheld from your wages.
Special Withholding Instructions: If you have special withholding instructions, such as withholding an additional amount of state income tax, complete the relevant section of the form.
California State Withholding Form Deadlines
The California state withholding form must be completed and submitted to your employer as soon as possible, but no later than the first day of work. If you are a new employee, you should complete the form on your first day of work. If you are an existing employee, you should complete a new form whenever your personal or employment circumstances change, such as when you get married or have a child.
Penalties for Late or Incomplete Forms
Failure to complete and submit the California state withholding form on time may result in penalties, including:
- Underwithholding of state income tax, which may result in a tax bill when you file your tax return
- Overwithholding of state income tax, which may result in a refund when you file your tax return
- Penalties and fines for late or incomplete forms
California State Withholding Form Frequently Asked Questions
Here are some frequently asked questions about the California state withholding form:
Q: Who is required to complete the California state withholding form?
A: All employees in the state of California are required to complete the form, including full-time and part-time employees, temporary and seasonal employees, and independent contractors (in some cases).
Q: How often do I need to complete the California state withholding form?
A: You should complete a new form whenever your personal or employment circumstances change, such as when you get married or have a child.
Q: What happens if I don’t complete the California state withholding form?
A: Failure to complete and submit the form may result in penalties, including underwithholding or overwithholding of state income tax, and penalties and fines for late or incomplete forms.
What is the purpose of the California state withholding form?
+The purpose of the California state withholding form is to determine the amount of state income tax to be withheld from an employee's wages, based on their filing status, number of allowances, and other factors.
How do I complete the California state withholding form?
+To complete the California state withholding form, download the DE 4 form from the California Employment Development Department (EDD) website or obtain a copy from your employer, and follow the instructions provided.
What are the consequences of not completing the California state withholding form?
+Failure to complete and submit the California state withholding form may result in penalties, including underwithholding or overwithholding of state income tax, and penalties and fines for late or incomplete forms.
In conclusion, the California state withholding form is an important document that must be completed by all employees in the state of California. By following the instructions and guidelines provided in this article, you can ensure that you complete the form correctly and avoid any penalties or fines. Remember to complete a new form whenever your personal or employment circumstances change, and submit it to your employer as soon as possible.
Form | Purpose |
---|---|
DE 4 | California state withholding form |
W-4 | Federal income tax withholding form |

By providing accurate and complete information on the California state withholding form, you can ensure that the correct amount of state income tax is withheld from your wages, and avoid any potential tax bills or penalties when you file your tax return.