What is an EIN and why do I need one?

An EIN (Employer Identification Number) is a unique nine-digit number assigned by the IRS to identify your business for tax purposes. Think of it as a Social Security Number for your business. As a non-US resident with a US LLC, you need an EIN to open a US bank account, file taxes, hire employees, and conduct business in the United States. Without an EIN, you cannot legally operate your US business or access essential financial services.