How to Get an EIN for Your Legal Services Business in Indiana (2026)

An Employer Identification Number (EIN) is crucial for your legal services business in Indiana. This guide provides a comprehensive overview of obtaining an EIN, tailored to the specific needs of attorneys, law firms, and legal tech companies operating in Indiana.

What is an EIN?

An EIN, also known as a Federal Tax Identification Number, is a unique nine-digit number assigned by the IRS to business entities. It's used to identify your legal services business for tax purposes, allowing you to hire employees, open business bank accounts, and more. Most legal service businesses, including PLLCs and PCs, will need an EIN.

How to Apply for an EIN

  1. Determine Eligibility: Ensure your Indiana legal services business meets the IRS requirements for obtaining an EIN. Generally, any entity operating as a partnership, corporation (including PC), or LLC (taxed as a corporation or with employees) is eligible.
  2. Choose Your Business Structure: Decide on the appropriate legal structure for your Indiana legal services business (e.g., PLLC, PC, LLC). The structure will influence your EIN application and tax obligations.
  3. Gather Required Information: Collect all necessary information, including the legal name of your business, its mailing address, the name and Social Security number (SSN) or Individual Taxpayer Identification Number (ITIN) of the responsible party (owner, partner, or officer).
  4. Complete the Online Application (Form SS-4): Access the IRS website and complete the online EIN application (Form SS-4). The online application is the fastest and easiest way to obtain an EIN.
  5. Submit Your Application: Review your completed Form SS-4 and submit it electronically through the IRS website. You may also fax or mail the application, but online submission is recommended for faster processing.
  6. Receive Your EIN: Upon successful submission of your online application, you will typically receive your EIN immediately. If you apply by fax or mail, it may take several weeks to receive your EIN.

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