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Manage, file and pay Indiana business taxes.

Manage, file and pay Indiana business taxes.

INtax

What is INTax?

INtax is Indiana’s free online tool to manage business tax obligations for:

  • Indiana retail sales tax
  • Withholding tax
  • Out-of-state sales tax
  • Gasoline use tax
  • Metered pump sales tax
  • Tire fees
  • Fuel tax
  • Wireless prepaid fees
  • Type II gaming fees
  • Food and beverage tax
  • County innkeeper’s tax
  • Alcohol excise tax
  • Other tobacco products excise tax.

INtax supports the following tax forms: ST-103, ST-103MP, ST-103P, ST-103CAR, WH-1, WH-3, TF-103, SF-900, SF-401, MF-360, WPC-103, TTG-103, GT-103DR, FAB-103, CIT-103, ALC-W, ALC-FW, ALC-DWS, ALC-M, ALC-PS, (OTP) CT-19, OTPM, and OTP-PACT.

INtax enables tax professionals, also known as service providers, to file and pay taxes on behalf of their clients.

New to INtax? We can help.

INtax QuickStart Guide

INtax Taxpayer Guide

INtax Tax Professionals Guide

Notices about INTax

Alcohol and Other Tobacco Products (OTP) -- Alcohol and other tobacco products (OTP) excise taxes now are available in INtax.

Need more help learning how to use INTax?

  • We offer a range of sophisticated tutorials to help you learn how to use INtax.
  • Service providers can also use INtax. And, we have tutorials specially designed for service agencies.
  • We have a special INtax hotline for help with INtax? You may call 317-232-2337, Monday through Friday, 8 a.m. - 4:30 p.m. EST.

Find e-Mandate Business Organization Resources on Intax filing.

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