Does Illinois require a business tax extension?


No, An automatic extension of 6 months of time is granted by Illinois state and it is not required to request an extension of time exclusively. But the tax dues if any must be paid within the due date.

What are the forms required to file business taxes with Illinois?


To request Illinois business tax extension, use Illinois Form IL-505-B (Automatic Extension Payment) for payment purpose. No specific form for applying state tax extension.

When is the due date to file business tax with Illinois?


Illinois business tax extension filing due by March 16, 2020 or by the 15th day of the 3rd month following the end of the taxable year for fiscal year filers and Partnership tax returns are due by April 15, 2020.

When is the business tax extended deadline with Illinois?


Illinois business tax extension offers an additional 6 months tax extension, which moves the filing deadline to October 15 (for calendar year) and November 15 for partnership (for calendar year).

What are the Payment options with Illinois?


If you owe Illinois state tax, your balance must be paid by the original due date, or penalties and interest will be charged. You can make a Illinois tax extension payment with Form IL-505-B, or make an electronic payment via Illinois Web Pay:

Where do I mail Illinois Form IL-505-B?


Mail Illinois Form IL-505-B with payment to the following address:

Illinois Department of Revenue,
P.O. Box 19045,
Springfield, IL 62794-9045

Published by ExpressExtension Support, ExpressExtension
Last modified 3/6/2020 6:45:10 AM EST