How to Get an EIN for Your Co-Founder Pair Business in Delaware (2026)

Securing an Employer Identification Number (EIN) is a crucial step for any co-founder pair starting a business in Delaware. This guide will walk you through the process for 2026, ensuring your Delaware-based venture complies with IRS regulations. Avoid the complexities and potential pitfalls with the help of Lovie's AI-powered formation platform, which streamlines the entire process.

What is an EIN?

An EIN, or Employer Identification Number, is essentially a Social Security number for your business. It's a unique tax ID assigned by the IRS to identify your business entity. You'll need an EIN to open a business bank account, hire employees, and file certain taxes. For co-founder pairs in Delaware, obtaining an EIN is a fundamental step in establishing a legitimate business presence.

How to Apply for an EIN

  1. Determine Your Eligibility: Ensure your co-founder business is eligible for an EIN. Generally, any entity formed as a partnership, LLC, or corporation in Delaware will need one. Since you're forming a business with co-founders, you'll almost certainly require an EIN.
  2. Choose Your Business Structure: Decide whether to form an LLC or C-Corp. This affects how you'll apply for the EIN and your ongoing tax obligations. For co-founders, an LLC offers flexibility, while a C-Corp is often preferred for raising venture capital. Lovie can help you weigh these options.
  3. Prepare Form SS-4: Download and complete IRS Form SS-4, the Application for Employer Identification Number. You'll need to provide information about your Delaware business, including its legal name, address, and the names and SSNs of the responsible parties (co-founders).
  4. Submit Your Application: You can apply for an EIN online through the IRS website, by fax, or by mail. The online application is the fastest method, usually providing an EIN immediately. Lovie can automate this process for you.
  5. Receive Your EIN: Upon successful application, you'll receive your EIN from the IRS. If you applied online, you'll receive it immediately. If you applied by fax or mail, you'll receive a confirmation letter.
  6. Verify Your EIN: After receiving your EIN, verify its accuracy on the IRS website. This ensures that the information is correctly recorded and prevents potential issues down the line.

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