How to Get an EIN for Your Side Hustler Business in Maine (2026)

So, you're juggling a W-2 job and a side hustle in Maine and thinking about leveling up? Getting an Employer Identification Number (EIN) might be your next smart move. This guide will walk you through obtaining an EIN for your Maine side hustle in 2026, ensuring you're set up for success. And remember, Lovie can streamline the entire company formation and compliance process, letting you focus on growing your business.

What is an EIN?

An Employer Identification Number (EIN) 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 it for various business activities, such as opening a bank account, hiring employees, and filing taxes.

How to Apply for an EIN

  1. Determine Eligibility: Ensure your Maine side hustle meets the IRS requirements for an EIN. Generally, any business operating as a corporation, partnership, or LLC, or those hiring employees, needs an EIN.
  2. Choose Your Business Structure: Decide on your business structure (sole proprietorship, LLC, etc.). This will influence how you apply for your EIN. Forming an LLC in Maine requires filing with the Maine Secretary of State and paying a $175 filing fee as of 2026.
  3. Complete the Online Application (Form SS-4): Access the IRS website and complete the online EIN application (Form SS-4). You'll need to provide information about your business, such as its name, address, and the reason for applying.
  4. Submit Your Application: Submit the completed Form SS-4 online. The IRS typically processes online applications immediately, providing you with your EIN right away.
  5. Receive Your EIN: Once your application is processed, you'll receive your EIN from the IRS. This is usually provided online as a PDF document.
  6. Use Your EIN: Use your EIN to open a business bank account, file taxes, and conduct other business activities in Maine. Keep your EIN confidential to prevent misuse.

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