The Arizona Department of Revenue (Department or ADOR) administers the property tax system in cooperation with the 15 county assessors, among others. Remember also that the value you place on the business asset is what the depreciation will be based on.Generally, gain from the sale or exchange of a capital asset held for personal use is a capital gain. According to the​ Schedule D instructions: The Arizona transaction privilege tax (TPT) is actually a tax on a vendor for the privilege of doing business in the state.