How to Get an EIN for Your Marketplace Business in Connecticut (2026)

Starting a marketplace business in Connecticut requires careful planning, and obtaining an Employer Identification Number (EIN) is a crucial step. This guide will walk you through the process of getting an EIN for your marketplace venture in Connecticut in 2026. Lovie's AI-powered platform can streamline this process, ensuring compliance and efficiency.

What is an EIN?

An Employer Identification Number (EIN) is a unique nine-digit number assigned by the IRS to business entities operating in the United States. It's essentially a Social Security number for your business, used to identify it for tax purposes. Whether you're operating a service marketplace, a product marketplace, or a B2B platform in Connecticut, you'll likely need an EIN.

How to Apply for an EIN

  1. Determine Your Eligibility: Ensure your Connecticut marketplace business meets the IRS requirements for an EIN. Generally, any entity except a sole proprietorship without employees needs an EIN.
  2. Choose Your Business Structure: Decide on the legal structure of your marketplace business (e.g., LLC, S-corp, C-corp). This decision impacts your tax obligations and liability in Connecticut. Consider consulting with a legal professional.
  3. Prepare Form SS-4: Complete IRS Form SS-4, Application for Employer Identification Number. You'll need to provide information about your Connecticut marketplace business, such as its legal name, address, responsible party, and reason for applying.
  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 and is generally recommended.
  5. Receive Your EIN: If you apply online, you'll typically receive your EIN immediately. If you apply by fax or mail, it may take several weeks to receive your EIN.
  6. Notify Connecticut State Agencies (If Needed): Depending on your marketplace's activities, you may need to notify the Connecticut Department of Revenue Services (DRS) or other state agencies of your EIN. This is especially important if you are acting as a marketplace facilitator collecting sales tax.

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