Illinois

State of Illinois Business Income Tax Extensions – Tax Year 2013

E-file an IRS business tax extension with TaxExtension.com

General Instructions

Corporations

The State of Illinois uses the same filing period as the IRS / Federal government. Therefore, Illinois corporate income tax returns are due by the 15th day of the 3rd month following the end of the tax year (March 15 for calendar year filers). If you cannot file by that date, you can get a state tax extension.

An Illinois corporate tax extension will give you 7 extra months to file your return, moving the deadline to October 15 (for calendar year taxpayers). Illinois extensions are automatic, which means that you don’t need to submit a written request in order to obtain one. If you have a valid Federal tax extension (IRS Form 7004), you will automatically be granted an extension for Illinois. However, you are still required to pay your Illinois tax by the original deadline (April 15) to avoid penalties.

A tax extension does not give you more time to pay your state tax balance. If you owe tax, you can make a payment using Illinois Form IL-505-B (Automatic Extension Payment). An extension payment can also be made electronically using the Illinois WebPay system: www.revenue.state.il.us/app/bpmi/

Partnerships

The State of Illinois uses the same filing period as the IRS / Federal government. Therefore, Illinois partnership tax returns are due by the 15th day of the 4th month following the end of the tax year (April 15 for calendar year filers). If you cannot file by that date, you can get a state tax extension.

An Illinois partnership tax extension will give you 6 extra months to file your return, moving the deadline to October 15 (for calendar year taxpayers). Illinois extensions are automatic, which means that you don’t need to submit a written request in order to obtain one. If you have a valid Federal tax extension (IRS Form 7004), you will automatically be granted an extension for Illinois. However, you are still required to pay your Illinois partnership tax by the original deadline (April 15) to avoid penalties.

A tax extension does not give you more time to pay your state tax balance. If you owe tax, you can make a payment using Illinois Form IL-505-B (Automatic Extension Payment). An extension payment can also be made electronically using the Illinois WebPay system: www.revenue.state.il.us/app/bpmi

 

Also check out Illinois e-Services for Businesses: tax.illinois.gov/ElectronicServices/Businesses

For more information, please visit the Illinois Department of Revenue website: tax.illinois.gov

Illinois State Income Tax Extension Forms

 

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

NOTE: Do not file Form IL-505-B if you owe zero Illinois tax.

 

Mail with payment to the following address:

Illinois Department of Revenue

P.O. Box 19045

Springfield, IL  62794-9045