Spatial prioritisation for NRM in Australia aims to support decisions about where scarce resources should be invested to create the best possible outcomes. Many NRM objectives or goals require identification of regions and then localities for such investment. This guide was developed through action research with Tasmanian NRM organisations to help to address such ‘where’ questions. The report is intended as a working document for ongoing adaptation and refinement, as the process of spatial prioritisation is an evolving part of NRM planning and implementation. This report is not the final answer, but a waypoint that lays out progress thus far in a key task in adaptive management: knowing where to invest to achieve the best outcomes towards goals.