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:

Research & Register – Learn about important tax requirements and registering your small business with the Missouri Department of Revenue.

Maintain – Find tax specific information such as how to file or adjust returns, update account information and view common filing mistakes.

Resources – Additional links to valuable information regarding small businesses.

The Department of Revenue welcomes suggestions related to small business information. Suggestions may be submitted to