43-1140. Property factor
The property factor is a fraction, the numerator of which is the average value of the taxpayer's real and tangible personal property owned or rented and used in this state during the tax period and the denominator of which is the average value of all the taxpayer's real and tangible personal property owned or rented and used during the tax period other than real and tangible personal property used by either:
1. A foreign corporation which is not itself subject to the tax imposed by this title, unless the corporation is subject to the tax as a member of an Arizona affiliated group, as defined in section 43-947.
2. An insurance company that is exempt from tax under section 43-1201.