What is a tax ID number? It's a unique nine-digit number issued by the Social Security Administration or the IRS to anyone ...

This guide was reviewed by a Business News Daily editor to ensure it provides comprehensive and accurate information to aid your buying decision. Tax identification numbers (TINs) and corporate ...

The United States Department of Labor and the Internal Revenue Service use EINs to track and collect taxes from operating businesses, including vendors. An EIN, or Employer Identification Number or ...

An Employer Identification Number (EIN) is issued to nearly all businesses by the Internal Revenue Service. It is comprised of nine digits and uniquely identifies companies for tax filing purposes.