Focusing on the 36 countries with a high burden of undernutrition, this report builds upon an earlier report, Aid for Nutrition: Can investments to scale up nutrition actions be accurately tracked?, which documented the inadequacy of current spending on nutrition, highlighted major problems with current reporting practices and proposed a series of reforms to address these (ACF 2012). The current study examines three different, though related, questions: How much funding is required to achieve the Scaling Up Nutrition (SUN) objectives for direct nutrition-specific interventions over the next ten years? How can this funding be allocated between domestic and external sources within the SUN framework? How can the funds which are coming from external donors be raised?