A method for tagging entities in a building automation system (BAS), the method including identifying, by a processing circuit, a first entity of one or more entities in a system library in response to receiving an indication to add the one or more entities to the BAS, wherein the system library includes a number of relationships between a number of tags and a number of entities. The method further including determining, by the processing circuit, one or more tags associated with the first entity based on the system library, determining, by the processing circuit, a tag type for each of the one or more tags based on a tag dictionary, and adding, by the processing circuit, the one or more tags to the first entity based on the tag type of each of the one or more tags.