What is a Federal Employer Identification Number (EIN)?

A Federal Employer Identification Number (EIN) is a 9-digit number assigned by the Internal Revenue Service (IRS) to businesses and other entities for tax identification purposes. This number is essential for various business activities, including filing tax returns, opening a business bank account, and applying for business licenses. The EIN serves as a unique identifier for a business much like a Social Security number does for individuals, enabling the IRS to track tax obligations and payments accurately.

The importance of having an EIN cannot be overstated, as it is crucial for businesses that have employees, operate as a corporation or partnership, or meet certain filing requirements. The structure of the EIN, which consists of nine digits formatted as XX-XXXXXXX, allows it to be easily recognized and utilized in the administrative processes of taxation.

Understanding the role of the EIN in the broader context of business regulation is vital for contractors and other business owners, particularly when it comes to compliance with federal tax laws and regulations.