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

Starting a business in retirement can be a rewarding way to supplement your income and pursue your passions. If you're a retiree in Connecticut forming an LLC or corporation, you'll likely need an Employer Identification Number (EIN) from the IRS. This guide provides a clear path to obtaining your EIN and managing your business effectively.

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. Even if you don't plan to hire employees right away, an EIN is often required for opening a business bank account, obtaining licenses, and filing taxes as an LLC or corporation.

How to Apply for an EIN

  1. Determine Your Eligibility: Ensure your Connecticut retiree business requires an EIN. Generally, LLCs with more than one member, corporations, and businesses that hire employees need an EIN. Even as a sole proprietor, you might need one to open a business bank account.
  2. Choose Your Business Structure: Decide on your business structure (LLC, S-Corp, etc.). This choice impacts your tax obligations and liability. In Connecticut, LLCs are popular due to their flexibility and pass-through taxation.
  3. Prepare Form SS-4: Complete IRS Form SS-4, Application for Employer Identification Number. You can download this form from the IRS website. It requires information about your business, such as its name, address, and the reason for applying for an EIN.
  4. Apply Online: The easiest and fastest way to obtain an EIN is through the IRS Online EIN Assistant. This online tool guides you through the application process and issues your EIN immediately upon completion.
  5. Submit Your Application: If you prefer not to apply online, you can submit Form SS-4 by mail or fax. However, online applications are generally processed much faster.
  6. Receive and Store Your EIN: Once your application is approved, you'll receive your EIN from the IRS. Keep this number in a safe place, as you'll need it for various business activities, including opening a bank account, filing taxes, and applying for licenses.

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