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Common questions about Individual Illinois Extensions

Select the links below for solutions to frequently asked questions concerning Illinois extensions.

1040 state extension frequently asked questions
IL E-file Extension Payment Diagnostic Ref. 50841, Ref. 50813, Ref. 50838, and Ref. 50835

Lacerte Tax 2017Lacerte Tax 2018Lacerte Tax 2019Lacerte Tax 2020

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