New Mexico LLC Formation, Filing, and Search with Secretary of State Contact and Documents Checklist Rhys Marsden, May 27, 2023 Starting a business in New Mexico? This article provides a guide on LLC formation, filing, and search with the Secretary of State, as well as a documents checklist to ensure a smooth process. Applying for Business Tax Identification Numbers Applying for Business Tax Identification Numbers What is a Business Tax ID? A Business Tax ID, also known as an Employer Identification Number (EIN), is a unique nine-digit number assigned by the IRS to businesses for tax purposes. Who needs a Business Tax ID? Most businesses are required to have a Business Tax ID, including LLCs, corporations, partnerships, and sole proprietors that have employees. How do I apply for a Business Tax ID? You can apply for a Business Tax ID online through the IRS website or by mail or fax using Form SS-4. You will need to provide information about your business, such as its name, address, and type of entity. How long does it take to get a Business Tax ID? If you apply online, you can receive your Business Tax ID immediately after completing the application. If you apply by mail or fax, it can take up to four weeks to receive your Business Tax ID. Do I need a Business Tax ID for my New Mexico LLC? If your New Mexico LLC has employees or is taxed as a corporation, partnership, or S corporation, you will need a Business Tax ID. Rhys MarsdenWas this article helpful?YesNo Secretary Of State