How to Get an EIN for Your AI & Machine Learning Business in Illinois (2026)

Starting an AI & Machine Learning business in Illinois requires an Employer Identification Number (EIN) from the IRS. This guide provides a clear path to obtaining your EIN in 2026, ensuring your AI venture is compliant and ready for success. Lovie can streamline this process, handling your EIN application and more with AI-powered precision.

What is an EIN?

An EIN is a unique nine-digit number assigned by the IRS to identify your business for tax purposes. It's like a Social Security number for your company, allowing you to hire employees, open business bank accounts, and file taxes.

How to Apply for an EIN

  1. Determine Your Eligibility: Ensure your AI & Machine Learning business entity is properly formed in Illinois (LLC, C-Corp, etc.) before applying for an EIN. You must be authorized to apply on behalf of the entity.
  2. Prepare Form SS-4: The IRS requires you to complete Form SS-4, Application for Employer Identification Number. You can download the form from the IRS website or complete the application online.
  3. Choose Your Application Method: You can apply for an EIN online through the IRS website, by mail, by fax, or by phone (for international applicants only). The online application is the fastest method.
  4. Complete the Application: Provide accurate information about your AI & Machine Learning business, including its legal name, address, type of entity, and the reason for applying for the EIN.
  5. Submit Your Application: If applying online, submit the application electronically. If applying by mail or fax, send the completed Form SS-4 to the appropriate IRS address or fax number.
  6. Receive Your EIN: If you apply online, you'll receive your EIN immediately. If you apply by mail or fax, it may take several weeks to receive your EIN in the mail.

Start your formation with Lovie — $20/month, everything included.