The Tourist Information System of Santander (Situr Santander) is a pilot experience in Colombia whose essential purpose is to measure the impact of tourism from an economic, social, cultural and environmental perspective at a subnational level.This information is considered essential for the management and planning if it´s long-term sustainability wants to be secured.The measurement of tourism as an economic sector requires the study of demand and supply.As for the demand, the estimation of tourist spending during their stay in a territory makes it possible to know the distribution of income throughout the value chain and assess the contribution of tourism to regional development and growth.The estimate of receptor tourist expenditure followed the guidelines of the World Tourism Organization and recommendations of InRoute.Data was collected through an online survey applied to a sample of monthly visitors initially contacted in person, facilitating tourists to register in detail each of the expenses incurred.The methodology has been adopted by the Ministry of Commerce, Industry and Tourism to perform the same measurements in other departments of Colombia.The results allowed knowing the composition and magnitude of tourist spending, plus income received in each of the primary activities associated with tourism.