Start your California Tax ID (EIN) Application

Welcome to the Online Assistant to Apply for a California Tax ID (EIN) Number. If you are ready to begin the application for a California Tax Identification Number, select the entity that corresponds to your business type or the legal structure of your entity. Once your application has been submitted choose the delivery timeframe you desire and your California Tax ID (EIN) will be delivered to you within that timeframe via e-mail.

What is a California Tax ID (EIN)?

A California Federal Tax ID Number which is also known as an Employer ID Number (EIN) or Federal Tax Identification Number is a unique, nine-digit ID assigned by the Internal Revenue Service for tax purposes for businesses as well as Non-Profit organizations, Trusts and Estates. The Tax ID or EIN serves as a way to easily identify the entity similar to how a Social Security Number is used to uniquely identify individuals.

Who Needs a California Tax ID (EIN)?

A California Tax ID (EIN) Number is needed for most businesses and organizations. If your business or organization fits any of the below characteristics you will need a California Tax ID (EIN):

  • Have W-9 Employees in California
  • Operate a California Corporation or Partnership
  • Operate as Trust, Estate or Non-Profit Organization
  • File Tax Returns for Employment, Excise or Alcohol, Tabacco and Firearms
  • Open a California Business Bank Account

Information Needed to Complete Application

To complete the online application for a California Tax ID (EIN) the following information will be required:

  • Full Legal Name as is or will be registered in California
  • The Responsible Party’s legal name (an individual who will be responsible for communication regarding tax matters) and their Social Security Number
  • Contact Email and Phone Number of the Responsible Party
  • Physical Address of the business or organization