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Indiana Department of Revenue

DOR > Business Tax Business Tax


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Welcome to the Indiana Department of Revenue’s tax site for businesses.

New County Rates Available Online -- Benton, Brown and Vermillion counties have changed their county income tax rates (Departmental Notice #1), which will become effective Jan. 1, 2014. To learn more, click here.

New for Businesses -- The department is excited to introduce a new publication called BizTax, which will help businesses better understand Indiana tax laws, the tax-filing process, and services DOR offers. To read the latest issue, click here.

ATTENTION -- Effective Jan. 1, 2013, ALL businesses in Indiana must file and pay their sales and withholding taxes electronically. For more information, click here.

If you work in or have business income from Indiana, you'll likely need to file a tax return with us. Whether you're a large multinational company, a small business owner, or a self-employed individual, this site contains all the resources you'll need to properly file your return. You'll find information on how to register or close your business, make changes to your account, and file and pay your taxes online. You'll also find answers to frequently asked questions, as well as all the business tax forms and publications you might need.

If you are operating a convenience store or plan to sell bath salts, spice, or synthetic drugs, click here.

Business Tax Basics

Forms

Electronic Services

Resources