How to Look Up an Employer's Federal ID Number

by William Adkins; Updated September 26, 2017
rear view of a businessman using a computer in an office cubicle

A federal Employer Identification Number (EIN) is required for all employers other than sole proprietorships with no employees other than the owner. The Internal Revenue Service (IRS) issues EINs as tax IDs. Because almost every business and other organization must have at least one EIN (many have several), employers' federal ID numbers are widely used to reference and find information about government, nonprofit and business organizations. In many cases you can look up an employer’s federal ID number for free. There are situations in which you may have to pay a fee to a commercial listing service.

Items you will need

  • Internet access
  • Credit/debit card
Step 1

Examine your last W-2 form if it’s your employer whose EIN you want. The EIN is printed to the right of your name in Box B. Many employers also list their EINs on pay stubs. Finally, you can contact your payroll department and ask for the EIN.

Step 2

Look up an EIN for a publicly held company by going to their Investor Relations website and click on “SEC filings.” Open any SEC filing document. The federal EIN must be listed on the first page of the document.

Step 3

Use the SEC online EDGAR Forms and Filings database for publicly held companies if their EIN isn’t available on their own website. The EDGAR system gives you access to all corporate SEC filings.

Step 4

Utilize a commercial EIN database. For example, allows customers to search their EIN database for a small fee and without subscribing to their service. Dun & Bradstreet Selectory requires that you subscribe, as do many other database services. However, Selectory lists 14 million employers (as of 2010), so it may be the best choice if you will be looking up employer ID numbers frequently. However, if you only want to look up a couple of employers, look for special introductory offers. Quite often you can find one that will allow you to do several free searches.


  • Sometimes the easiest way to find a federal EIN is the most direct, especially with government and nonprofit organizations. Most have a contact number posted on their website. Call or email the organization and ask for their EIN. Many welcome inquiries for information and will provide their EINs.

About the Author

Based in Atlanta, Georgia, W D Adkins has been writing professionally since 2008. He writes about business, personal finance and careers. Adkins holds master's degrees in history and sociology from Georgia State University. He became a member of the Society of Professional Journalists in 2009.

Photo Credits

  • George Doyle/Stockbyte/Getty Images
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