The report focuses on the development and operationalization of an actuarial Universal Health Coverage (UHC) costing model in Armenia that relies on the most recent and complete health insurance claims data. The model serves as a tool for assessing the health financing and fiscal implications of the country's key universal health insurance policy decisions. The report aims to provide guidance in the design, construction, calibration, evaluation, implementation, and refinement of a UHC model to assess the expenditure impacts and the revenue requirements to finance alternative universal health insurance policies.