Indiana Code
Chapter 2. Imposition of Tax
6-5.5-2-4. Apportioned Income of Taxpayer Filing Combined Return for Unitary Group

Sec. 4. For a taxpayer filing a combined return for its unitary group, the group's apportioned income for a taxable year consists of:
(1) the aggregate adjusted gross income, from whatever source derived, of the members of the unitary group; multiplied by
(2) the quotient of:
(A) all the receipts of the taxpayer members of the unitary group that are attributable to transacting business in Indiana; divided by
(B) the receipts of all the members of the unitary group from transacting business in all taxing jurisdictions.
As added by P.L.347-1989(ss), SEC.1. Amended by P.L.68-1991, SEC.5; P.L.6-2000, SEC.3.