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MyTax.DC.gov will be unavailable 5:30 pm Friday, October 27 through 6 am Monday, October 30 for scheduled maintenance.

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New Business Registration

To register a new business with the District of Columbia, you will need the following information to complete the tax registration form on the District's online tax portal, MyTax.DC.gov:

  • Your Federal Employer Identification Number and/or Social Security Number
  • Your legal form of business (e.g. partnership, corporation, sole proprietor)
  • Your business address
  • The names, titles, home address, and Social Security number of the proprietor, partners, or principal officers (mandatory)
  • The former Entity Information if previously registered with the District
  • The addresses for all locations where you will collect sales tax in the District of Columbia

Do you need to register your business and apply for a business license in the District of Columbia? Go to the Department of Consumer and Regulatory Affairs to get more information about corporate registration and business licensing requirements.

MyTax.DC.gov

To make updates to an existing business account, please log into your MyTax.DC.gov account. For further assistance, please contact the Customer Service Center.