Indiana Code
Chapter 2. Imposition of Tax
6-5.5-2-3. Apportioned Income of Taxpayer Not Filing Combined Return

Sec. 3. For a taxpayer that is not filing a combined return, the taxpayer's apportioned income consists of the taxpayer's adjusted gross income for that year multiplied by the quotient of:
(1) the taxpayer's total receipts attributable to transacting business in Indiana, as determined under IC 6-5.5-4; divided by
(2) the taxpayer's total receipts from transacting business in all taxing jurisdictions, as determined under IC 6-5.5-4.
As added by P.L.347-1989(ss), SEC.1. Amended by P.L.6-2000, SEC.2.