Composite Return: Tax, Penalties and Interest

Section 100 Section 100.5150  Composite Return: Tax, Penalties and Interest The amount of tax due shall be based on the amount of income properly shown on the return, and, for taxable years ending on or after December 31, 2009, may be reduced by any share of any credit earned under Article 2 of the Illinois Income Tax Code during the taxable year that is passed through to the partners or shareholders joining in the composite return.  Penalties and interest shall be determined on a composite basis.