Why Employer identification number (EIN) matters to a first-time founder
An EIN identifies a US entity on federal tax records and is commonly needed for payroll, banking, tax returns and business registrations. Founders should keep the assigned number and confirmation secure and use the same legal entity details consistently. Applying unnecessarily or using the wrong entity’s number can create avoidable tax and banking problems.
Examples of Employer identification number (EIN)
A founder forms a US limited liability company and plans to hire two employees. The company obtains its EIN directly from the Internal Revenue Service, then uses that number to open a business bank account and register payroll. The founder does not use their personal Social Security number as the company’s identifier.
Common misunderstanding
An EIN is not a company registration number, business licence or personal Social Security number. It identifies an entity for US federal tax administration but does not prove that the business is authorised to operate. Despite the word “employer”, some entities without employees still need or choose to obtain one.
When to use it
Use the term for US federal tax identification. Check official Internal Revenue Service guidance when forming an entity, hiring, opening an account or changing ownership or structure. Businesses outside the United States use different identifiers. Avoid paid application sites that imitate government services when the official application is available directly.