KUBIK-BRUNSVOLD-KLINGLER. 35 ILCS 5/304 from Ch. 120, par. 3-304 35 ILCS 5/804 from Ch. 120, par. 8-804 35 ILCS 5/1501 from Ch. 120, par. 15-1501 Amends the Illinois Income Tax Act. Provides that for tax years ending on or after December 31, 1998, persons other than residents who derive business income from this State and one or more other states shall apportion their business income using a single factor sales formula. Provides that this sales factor shall be a fraction, the numerator of which is the total sales of the person in this State during the taxable year, and the denominator of which is the total sales of the person everywhere during the taxable year. Provides that no penalty shall be imposed for failure to pay the estimated tax due before the effective date of this amendatory Act if the underpayments are solely attributable to the change in the apportionment of income. In the definition of "unitary business group", provides that if the members' accounting periods differ, the common parent's accounting period, or if there is no common parent, the accounting period of the member that is expected to have, on a recurring basis, the greatest Illinois income tax liability must be used to determine which apportionment method to use. Provides that the provisions of this amendatory Act apply to tax years ending on or after December 31, 1998. Effective immediately. 98-01-23 H FILED WITH CLERK 98-01-23 H ADDED AS A JOINT SPONSOR BRUNSVOLD 98-01-27 H FIRST READING 98-01-27 H REFERRED TO HOUSE RULES COMMITTEE RULES 98-02-25 H ADDED AS A CO-SPONSOR KLINGLER 98-05-18 H MOTION DISCHARGE HOUSE 98-05-18 H RULES AND PLACE ON 98-05-18 H CALENDAR FOR 98-05-18 H CONSIDERATION 98-05-18 H -CHURCHILL 98-05-18 H MOTION LOST 002-002-000 98-05-18 H COMMITTEE RULES 99-01-12 H SESSION SINE DIE END OF INQUIRY Full Text Bill Summary