Download 2018 Individual Income Tax Forms

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An application for a tentative carry-back adjustment may be filed on this form by any corporation.

IT-560C Corporate Extension Payment Voucher

The IT-560C form is used by corporate taxpayers to submit any payment of tax when an extension has been requested or is enforced.

IT-611 Corporation Income Tax Booklet

Corporation Income Tax General Instructions Booklet.

IT-611S S Corporation Income Tax Booklet

S Corporation income tax forms and general instructions.


This form is for related member intangible expenses and costs and interest expense and costs

IT-CONSOL Instructions

Instructions to file Consolidated Returns

IT-DN Disaster Notification

This form is a disaster notification form for businesses

IT-REIT Captive Real Estate Investment Trust

This form is for a captive real estate investment trust