Malaria social and behavior change (SBC) professionals are often asked to justify investments in malaria SBC. Making the case for malaria SBC requires global-level and national-level advocacy, especially given the limited resources available for malaria control and elimination and competing priorities. Developed by the RBM Partnership to End Malaria Social and Behaviour Change Working Group in collaboration with Breakthrough ACTION, Making the Case for Malaria SBC: Key Messages and Actionable Steps highlights nine key messages, five actionable steps, and valuable resources and evidence that make the case for investment in malaria SBC. This tool is also available in French and Portuguese.