Who needs to register?
If you are starting a new business in Indiana, you may need to register with the Indiana Department of Revenue. Please refer to the Online Business Tax Application (BT-1) Checklist for more information.
Use Indiana’s one-stop resource for registering and managing your business.
Learn about state laws, the tax-filing process, and what services are available to help you as your business evolves.
Find information on taxes if you are an independent contractor doing business in the State of Indiana.
How do I register?
The application allows you to set up the appropriate tax accounts for your business.
Please note that you must complete registration for each location. If you wish to consolidate tax filings for all or some of your locations, you may choose to complete Form BT-1C (Authorization for Consolidated Sales Tax Filing Number).