What is an Employee ID (EmployeeID) Number?An employee ID number is the unique 6-digit identification number given to a University of Colorado employee upon hire. It is not your social security number ...

Discover how to perform an EIN lookup, why it's important and the resources available for obtaining and verifying Employer Identification Numbers.

Employers must deduct federal income and Social Security taxes from employee payroll. If you need a federal ID number for your business, you find it through the IRS website.

An employer identification number (EIN) is like a Social Security number (SSN) for a business. The IRS assigns an EIN — also known as a federal tax ID number — to any business that is eligible. EINs ...

How to Check a Social Security Number. Wages paid to an employee or independent contractor must be attributed to a Social Security Number. When an employer hires a new employee, a W-9 is often ...

An employer identification number, or EIN, is a nine-digit number assigned to your company by the IRS. You’ll use it when filing your business's income tax return or payroll tax return.

Learn what an employer identification number (EIN) is, if you need one, how to get one and the differences between an EIN and other ID numbers.