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

Starting an accounting business in Maine requires careful planning, including obtaining an Employer Identification Number (EIN) from the IRS. This guide provides a comprehensive overview of how to get an EIN for your accounting firm in Maine in 2026, ensuring you meet all federal requirements. Simplify the process and focus on your clients by using AI-powered formation with Lovie.

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 your firm for tax purposes. Whether you're a sole proprietor hiring employees or forming a multi-member LLC, an EIN is often necessary.

How to Apply for an EIN

  1. Determine Eligibility: Ensure your Maine accounting business is eligible for an EIN. Generally, any entity required to file business taxes or hire employees is eligible. This includes LLCs, corporations, partnerships, and sole proprietorships with employees.
  2. Choose a Responsible Party: Designate a 'responsible party' – an individual who controls, manages, or directs the entity and the disposition of its funds and assets. This person must have a valid Taxpayer Identification Number (SSN or ITIN).
  3. Complete the EIN Application (Form SS-4): Fill out IRS Form SS-4, Application for Employer Identification Number. This form requires information about your business, such as its legal name, address, type of entity, and reason for applying.
  4. Submit the Application to the IRS: 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: Upon successful submission, you'll receive your EIN from the IRS. If applying online, you'll receive it immediately. For fax or mail applications, the EIN will be sent via mail.
  6. Verify Your EIN: After receiving your EIN, verify its accuracy on the IRS website or by calling the IRS Business & Specialty Tax Line. This ensures there are no errors that could cause issues later.

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