Employer Identification Number (EIN)

An EIN, sometimes called an FEIN, is an identification number used to identify a business entity for tax purposes.


Learn the requirements for obtaining an EIN by visiting the Internal Revenue Service (IRS) website or calling toll free 1-800-829-4933.

An EIN is required for all businesses that meet the following criteria:

  • Businesses with employees
  • Businesses that withhold taxes
  • Businesses that operate as Corporations or Partnerships
  • Businesses that include the following (Trusts, Real Estate, Non-profits, Plan Administrators & Estates)

An EIN is required before a BBL can be issued.

  • If application is submitted online, you will receive your EIN immediately.
  • If application is made by telephone (1-800-829-4933), you will receive your EIN immediately.
  • If application is faxed, you will receive your EIN within one week.
  • If application is mailed, you will receive your EIN in 4-5 weeks.

You may apply for an EIN:

  • Online
  • Via Fax
  • Via Mail
  • Via Telephone (Domestic: 1-800-829-4933/ International: 267-941-1099)

Department of Consumer and Regulatory Affairs

1100 4th Street, SW, Washington, DC, 20024

Office Hours: Monday,Tuesday,Wednesday,Friday 8:30am to 4:30pm and Thursday 9:30am - 4:30pm

Phone: (202) 442-4400

This is map view of the location