The Employer Identification Number (EIN), also known as the Federal Tax Identification Number, is a unique nine-digit number assigned by the Internal Revenue Service (IRS) to business entities operating in the United States for tax purposes. It's akin to a Social Security number for your business. Many entrepreneurs wonder if this crucial identifier has a shelf life. The short answer is no, an EIN number does not expire. Once assigned by the IRS, your EIN is permanent. It remains with your business entity for its entire existence, regardless of changes in ownership, structure, or location. This permanence is a core aspect of its function, providing a stable identifier for tax reporting and compliance across the life of your business. Understanding this permanence is vital for long-term business planning and ensuring you maintain the correct identification for all federal tax purposes.
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