"Combined business income" means the business income of all members of a unitary group from the unitary business.
"Combined reporting method" means the accounting method of determining the portion of the business income of a unitary group that is attributable to the taxpayer's activity in this State with respect to that unitary business.
"Combined return" means a single return that is filed to reflect the income of all taxpayers in a unitary group, but does not mean a consolidated return.
"Designated member" means the member of a group that is designated, pursuant to subsection (d)(3)(B), to represent the group for tax matters relating to a combined return.
"Group" means a unitary group as defined in section 18-235-22-01.
Example: Corporation T operates on a calendar year basis and conducts a unitary business with Corporation U, which operates with a September 30 year end. T is employing the combined reporting method (but is not filing a combined return) with U. T, in computing combined business income for 1993, shall include 9/12 of U's income for the year ending September 30, 1993, and 3/12 of U's estimated income for the year ending September 30, 1994. In computing T's property, payroll, and sales factors, a similar computation shall be performed on U's property, payroll, and sales factor denominators. If no extensions are given, T shall file its return on April 20, 1994, and shall amend its return no later than January 20, 1995, the same time U's return is due for the year ending September 30, 1994, with a revised apportionment computation using U's actual income and U's actual property, payroll, and sales factor denominators.
Haw. Code R. § 18-235-22-03