The world's landfills and dump sites contain a significant amount of biodegradable waste, including food scraps and agricultural refuse. When these organic materials break down in landfills, various gases known collectively as landfill gas (LFG) are produced and either buildup within a landfill or discharge into the atmosphere. Because of its chemical make-up, LFG is flammable, odorous, and a potent source of greenhouse gases (GHG). LFG management systems that collect and either burn (flare) or convert these gases into energy can help mitigate these problems and contribute to the overall safe operation of a landfill. As an additional benefit, the energy or carbon reductions that are produced by LFG systems can in some cases be sold to generate revenue. However, finding the resources to finance these systems can be a challenge, particularly in low-resource settings. This report is applicable if the initial technical and financial feasibility assessments conclude that the LFG project can meet stakeholders' environmental and/or financial goals. This detailed assessment describes as accurately as possible project-specific financial elements over the lifetime of the system. This report offers an overview of the range of financial resources that may go into a financial assessment of an LFG system.