Research & Register


Small Business Information

Welcome to the Missouri Department of Revenue Small Business web page. This page is designed to assist small businesses in complying with Missouri tax requirements. This page offers:

  • Information to research the tax requirements for your business and then register the business with the Department;
  • Ongoing requirements for filing and paying tax in the State; and
  • Access to additional state resources, including access to the Missouri Business Portal.
Looking for assistance with filing your sales/use tax returns electronically? Check out our video tutorial series.

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