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State of Illinois
Personal Income Tax Extensions

File Only a State Tax
Extension

$5.95 for a State Tax Extension PDF

eFile Your Personal Federal
Tax Extension

IRS Form 4868 - $29.95

Your State Extension PDF is FREE

General Instructions

Illinois Filing Due Date: Individual income tax returns are due by April 15, in most years — or by the 15th day of the 4th month following the end of the taxable year (for fiscal year filers).

Extended Deadline with Illinois Tax Extension: Illinois offers a 6-month extension, which moves the filing deadline from April 15 to October 15 (for calendar year filers).

Illinois Tax Extension Form: Illinois tax 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 your Illinois income tax. All state tax payments are due by the original deadline of the return. Any Illinois tax not paid by the proper due date will be subject to interest and penalties. You can make an Illinois extension payment with Form IL-505-I, or pay electronically through Illinois WebPay for Individual Income Tax: www.revenue.state.il.us/webpay

Illinois Tax Extension Tips: If you have an approved Federal tax extension (IRS Form 4868), you will automatically receive an Illinois tax extension. However, if you owe Illinois tax, it must still be paid by the original due date.

NOTE: If you owe zero Illinois tax, you will be granted an automatic state extension without having to file anything.

Illinois State Income Tax Payment Forms

Website: Illinois Department of Revenue

Form IL-505-I (Automatic Extension Payment for Individuals Filing Form IL-1040): tax.illinois.gov/taxforms/current/il-505-i.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..