This guidance note explains why countries in Asia and the Pacific should use technology, including remote sensing and artificial intelligence, to reform property tax management and help strengthen public finances. Outlining why property tax is a stable revenue source, it shows how technology can be used to roll out computerized mass appraisal systems, automated value modeling, and integrated land information systems. It assesses the complex hurdles and financial constraints facing countries and shows how the Asian Development Bank is helping better integrate land management into wider e-government systems.