File Illinois Form IL-4562
Prepare Illinois Form IL-4562 now with e-File.com
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Form IL-4562 may be used to modify the effects of the 30 percent or 50 percent “bonus depreciation” that the IRC is allowing. In case you have filed more than one federal Form 4562, make sure to add all amounts from all federal Forms 4562, and state all amounts on Illinois Form IL-4562.