For tax years beginning January 1, 2014, sales other than the sales of tangible personal property are included in the numerator of the sales factor as provided in Reg-24-333 to Reg-24-340. Whether particular sales are attributable to Nebraska is determined on a transaction-by-transaction basis, not customer-by-customer, or contract-by-contract. See, for example Reg-24-333.01D(4)(4).
316 Neb. Admin. Code, ch. 24, § 331