How to Get an EIN for Your Side Hustler Business in California (2026)

Starting a side hustle in California is exciting, but navigating the legal requirements can be tricky. If you're forming an LLC for your side business, you'll likely need an Employer Identification Number (EIN) from the IRS. This guide provides California side hustlers with a clear path to obtaining an EIN in 2026, ensuring compliance and setting your business up for success. Let Lovie handle the complexities, so you can focus on growing your business.

What is an EIN?

An Employer Identification Number (EIN) is essentially a Social Security number for your business. It's a unique nine-digit number assigned by the IRS to identify your business entity. You'll need an EIN to open a business bank account, hire employees, file taxes, and more. Even if you're a single-member LLC in California, you may still need an EIN.

How to Apply for an EIN

  1. Determine Your Eligibility: Ensure your California side hustle business structure requires an EIN. Most LLCs with employees, partnerships, and corporations need one. Single-member LLCs without employees might not, but it's often beneficial.
  2. Prepare Form SS-4: You'll need to complete IRS Form SS-4, Application for Employer Identification Number. This form requires information about your business, including its legal name, address, and the reason for applying for an EIN.
  3. Choose Your Application Method: You can apply for an EIN online through the IRS website, by mail, or by fax. The online application is the fastest and most convenient method.
  4. Complete the Online Application: If applying online, follow the instructions on the IRS website. You'll need to provide the information from Form SS-4 and answer a series of questions about your business.
  5. Submit Your Application: Once you've completed the application, submit it to the IRS. If applying online, you'll receive your EIN immediately after submission.
  6. Receive Your EIN: Upon successful submission, you will receive your EIN. If applying online, this is immediate. If applying by mail or fax, it can take several weeks.

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