IC 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.