The Scaling Up Nutrition (SUN) Movement is a global movement to catalyse country action towards ending malnutrition in all its forms. Member countries commit to developing a framework to prioritise multisectoral nutrition actions for coordinated implementation. Whilst the shape and form vary across countries, this is typically referred to as a common results framework (CRF)—often presented similarly to a logical framework (logframe). The CRF often serves as the foundation of a more detailed multisectoral national nutrition action plan (NNP). The CRF or NNP is typically endorsed at the highest level and guides collective implementation and resource allocation for nutrition. The Department for International Development (DFID)-funded Maximising the Quality of Scaling Up Nutrition Plus (MQSUN+) project (2016-2020) provides technical assistance to SUN countries and the SUN Movement Secretariat to support this process. This guidance note and its associated Excel© template provide guidance on how to assess a CRF or NNP for conducting costing.