The Department of Foreign Affairs and Trade (DFAT) aims to be a “strong and consistent advocate for disability equity and rights”. This briefing explores a tool that can support DFAT to achieve this aim: the Organisation for Economic Cooperation and Development-Development Assistance Committee’s policy marker on the inclusion and empowerment of persons with disabilities (the OECD-DAC disability marker), which allows international cooperation actors to report standardised, project-level data on whether their Official Development Assistance (ODA) spending seeks to be disability inclusive.