Tax Professionals

A new Tax Dispatch is available, which includes changes to the Commissioner’s Directives, Information Bulletins, and Departmental Notices. More...

Indiana Sales Tax Rate to Change to 7 Percent Effective April 1
With the passage of House Enrolled Act 1001, the Indiana sales-tax rate will increase to 7 percent on April 1, 2008. More…

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• 2007 IT-40 Individual Booklet with forms - Annotated Version with Code Cites and Information Bulletin References
• 2004 IT-20 Corporate Booklet with forms- Annotated Version with Code Cites and Information Bulletin References
• 1999 IT-20 Corporate Booklet with forms - Annotated Version with Gross Tax (Repealed 1/1/03) Code Cites.
• BT-1 Form (Business Tax Application) - Annotated Version with Code Cites and Information Bulletin References
• Certified Software Developers
• CIT (County Innkeepers Tax)/ FAB (Food and Beverage Tax) Chart
• Claim for Refund Process Change
• Corporate Income and Franchise Tax Cites in the Indiana Tax Code
• Corporate Tax Rate History
• County Tax Map
• eCheck Payment Method
• Departmental Notice # 20 - Marion County Local Tax Increases
• File Sales and Withholding taxes online through INtax
• How to read a refund check
• Indiana State Tax Interest Rates
• Indiana Tax Dispatch - Practitioners' Newsletter
• Individual Income Tax Cites in the Indiana Code
• Innkeepers Map
• News Flashes
• Order tax forms online
• Package IN-X (Downloadable ZIP files)
• Protest Process Changes
• Sales Tax Reinstatement Instructions (October 26, 2000)
• Sales and Use Tax Cites in the Indiana Tax Code
• Tax School Information
• Training Opportunities for Tax Practitioners