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Learn what is needed to register a new business in the state of Indiana.
Download forms and publications related to business.
Change your business addresses, telephone numbers, contact names, etc.
What to do if you have received a bill.
Look up information for contacting the Business section of the Indiana Department of Revenue.
Learn how to claim a refund and changes to the protest process.
Register, File, Pay and Manage Taxes
Use the IN-ePay system to view and make estimated corporate income tax payments. Manage business accounts, file sales and withholding returns, and make sales and withholding tax payments using the INtax system.
Tax Types, Tax Rates, Penalties, and Interest
Listing of all Business tax types with contact phone numbers. Locate tax rates, interest rates, and penalty amounts.
Check filing deadlines for any tax type.
Check to see if the question you have has an answer posted.
What is use tax and do I owe it?
