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Do corporations have to make estimated tax payments?

Answer #70 -- ( Published 08/04/2005 10:49 AM | Updated 07/12/2017 10:38 AM )

Do corporations have to make estimated tax payments?

Corporations (other than S corporations) who reasonably expect their income and replacement tax liability to be more than $400 must make quarterly estimated payments. Estimated Payments are due on the 15th day of the 4th, 6th, 9th, and 12th months of the tax year. Corporations who mail estimated tax payments must complete Form IL-1120-ES, Estimated Income and Replacement Tax Payment for Corporations. We encourage you to use our online account management program, MyTax Illinois, to make estimated tax payments.

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