Energy management in the hotel industry remains a cornerstone in mitigating climate change. To successfully deploy energy management practices, correct energy KPIs are needed. Moreover, the development of a uniform taxonomy on how to classify hotel industry final energy use is crucial in succeeding with energy management in the hotel industry and to enable benchmarking beyond the supply of energy. This work proposes a methodology to develop a taxonomy of final energy use in hotels. The methodology consists of five steps and five levels, allowing them to gradually disaggregate the final use of energy following different classification criteria. The methodology is applied to a hotel, validating the feasibility of the proposed methodology to more accurately identify the areas of greatest final energy use and provide further insights. Results indicate that the main electrical energy use emanates from HVAC (30.4%), tap hot water (24.8%), food process (20.6%), and lightning (7.1%). Key findings include the development of a structured framework that allows hotel managers, energy professionals, and policymakers to systematically assess and benchmark energy performance; and the classification levels provide a standardized method for identifying energy-intensive operations, enabling the implementation of targeted energy-saving measures.