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State of Illinois
Business Income Tax Extensions

File Only a State Tax
Extension

$5.95 for a State Tax Extension PDF

 

File Your Business Federal
Tax Extension

IRS Form 7004 - $34.95

Your state extension PDF is FREE

General Instructions

Illinois Filing Due Date: Corporate income tax returns are due by March 15 — or by the 15th day of the 3rd month following the close of the taxable year (for fiscal year filers). Partnership tax returns are due by April 15 — or by the 15th day of the 4th month following the close of the taxable year (for fiscal year filers).

Extended Deadline with Illinois Tax Extension: Illinois offers a 7-month extension for filing the corporate tax return, which moves the filing deadline to October 15 (for calendar year taxpayers). Partnerships can obtain a 6-month Illinois extension, which moves the filing deadline to October 15(for calendar year taxpayers).

Illinois Tax Extension Form: Illinois business extensions are automatic, which means there is no application or written request to submit.

Illinois Extension Payment Requirement: An extension of time to file is not an extension of time to pay. If you owe Illinois tax, your balance due must be paid by the original deadline, or penalties and interest will apply. To make a state extension payment, use Form IL-505-B, or make an electronic payment via Illinois Web Pay: www.revenue.state.il.us/webpay

Illinois Tax Extension Tips: If you have a valid Federal extension (IRS Form 7004), the State of Illinois will automatically grant you an Illinois extension. In this case, you don’t have to do anything else to obtain an Illinois extension — unless you owe state tax.

You are not required to file Form IL-505-B if your Illinois tax balance is zero.

Illinois State Income Tax Extension Forms

Website: Illinois Department of Revenue

Form IL-505-B (Automatic Extension Payment): tax.illinois.gov/TaxForms/CurrentYear/Business/IL-505-B.pdf

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FileLater provides a secure online solution for individuals and businesses seeking to e-file an IRS income tax extension. FileLater is an authorized IRS e-file provider and files both IRS 4868 and IRS 7004 forms electronically. Prices determined at the time of efile and are subject to change without notice.
Owned and Operated in the United States.

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Need help or support? Contact us

FileLater provides a secure online solution for individuals and businesses seeking to e-file an IRS income tax extension. FileLater is an authorized IRS e-file provider and files both IRS Form 4868 and IRS Form 7004 electronically. Prices determined at the time of efile and are subject to change without notice.
Owned and Operated in the United States.

© 2022 InterSearch Tax Solutions, Inc..