The present disclosure is directed to methods and systems for spectrum leasing. The spectrum leasing system performs a set of functions to provide potential leasing customers with flexible leasing options. The spectrum leasing system can utilize inputs such as: customer problems, size and type of customer premises, list of customer location(s), requested spectrum bands, requested network capability at a customer location, and geographic information system (GIS) information about the customer premises, nearby buildings, and venues The spectrum leasing system can use the input information to identify and select leasing and monetization opportunities for customers. In some implementations, the spectrum leasing system analyzes a network provider spectrum portfolio, proximity of existing and planned public network cell sites, and a set of pre-established business rules for spectrum leasing to identify spectrum bands available for leasing and determine pricing of the lease.