property tax; residential property

HB 2394 amends Arizona's property tax code to create new deductions for contractors in the "prime contracting classification," primarily affecting construction businesses and manufactured building dealers. It allows contractors to exclude specific costs from their taxable base, including land sales (up to fair market value), groundwater monitoring equipment, unattached furniture/fixtures, military reuse zone projects (with qualification), environmental cleanup work, and machinery/equipment with "independent functional utility." To claim certain deductions (like military or environmental projects), contractors must obtain a pre-work letter of qualification from the Department of Revenue. This bill does not change tax rates for homeowners but adjusts taxable income for specific contractor activities. The title referencing "residential property" is misleading, as the changes apply to contractor tax calculations, not residential property owners.