Wis. Admin. Code § Tax 2.47 — Apportionment of apportionable income of interstate motor carriers

Tax 2.47(1) (1) General. The apportionable income of a motor carrier engaged in business in and outside this state shall be apportioned to Wisconsin as described in this section, except if the motor carrier is in a combined group, its Wisconsin share of the combined group’s apportionable income is computed as provided in s. 71.255 (5) , Stats., and further detailed in s. Tax 2.61 (7) .

Tax 2.47(1m) (1m) Definitions. In this section:

Tax 2.47(1m)(a) (a) “Engaged in business in and outside this state” has the same meaning as in s. Tax 2.39 (2) (b) .

Tax 2.47(1m)(b) (b) “Ton mile” means the movement of one ton of persons or property, or both, the distance of one mile. For carriage of persons, each person shall be considered the equivalent of 200 pounds.

Tax 2.47(2) (2) Apportionment formula computation. For taxable years beginning on or after January 1, 1997, a motor carrier that is engaged in business in and outside this state shall apportion its apportionable income to this state on the basis of the arithmetical average of the following 2 factors:

Tax 2.47(2)(a) (a) The ratio of the gross receipts from carriage of persons or property, or both, first acquired for carriage in Wisconsin to the total gross receipts from carriage of persons or property, or both, everywhere.

Tax 2.47(2)(b) (b) The ratio of ton miles of carriage in Wisconsin to ton miles of carriage everywhere.

Tax 2.47(3) (3) Substitution of factors. Whenever gross receipts data is not available the department may authorize or direct substitution of a similar factor, such as gross tonnage, and whenever ton mile data is not available the department may similarly authorize substitution of a similar factor, such as revenue miles.

Tax 2.47(4) (4) Mercantile and manufacturing businesses. This section does not apply to any mercantile or manufacturing business which engages in some interstate carriage as an incident of the mercantile or manufacturing business.