The aim of this guidance is to ensure that the specific vulnerabilities and capacities of older people in emergencies are fully taken into account as part of a thorough gender and age analysis of humanitarian needs. To achieve this objective it is crucial that we analyse demographic and needs assessment data with a framework of the vulnerabilities, roles, responsibilities and positions of older people within families and communities as context. Together with gender, age must be recognised as a “universal determinant”. Universal as it is possessed by every person, determinant as it largely defines both the position and role of a person in the family and society. Critically for humanitarian operations, gender and age also largely determine how a person is going to be affected by a crisis. As such this guidance provides both the rationale for and practical suggestions on how to gather information to support an ageing-sensitive analysis of humanitarian needs. The guidance is directed not only to HelpAge’s staff but also to humanitarian partners carrying out assessments.