An FEIN is a Federal Employer Identification Number issued by the Internal Revenue Service (IRS). This nine-digit number is used by businesses to identify themselves for tax reporting, banking services as well as other official and legal purposes. An FEIN is required for starting a new business, purchase of an ongoing business, a change in the organization type, creating a pension plan and to forming a trust.
Call the IRS Business & Specialty Tax Line at (800) 829-4933 Monday through Friday from 7:00 a.m.-10:00 p.m. If you are not the person authorized to receive this information, this method will not work as you will be asked for identifying information.
Identify if the FEIN is for a public, private or nonprofit organization. For a public company, certain documents, such as 10-K, 20-F and other SEC filings can be accessed for free if you have an FEIN by logging on to the U.S. Securities and Exchange Commission's EDGAR database at www.sec.gov/edgar.shtml.
Use fee-based websites to find a FEIN. Resources such as Westlaw, LexisNexis and KnowX allow you to search an FEIN and display a list of results. Payment is required to view full details.
Check GuideStar in the case of a nonprofit organization (see Resources). GuideStar offers a basic and a premium service.