Total costs include mortgage payments and expenses, as well as travel costs, annual maintenance fees and taxes, closing costs, broker commissions, and finance charges. Annual timeshare maintenance fees can be high depending on the amenities of the resort. The larger and more upscale the resort, the higher the fees. These fees cover all of the costs of operation but are typically several hundred dollars a year. These fees can and do rise over time. All of these expenses should be incorporated when determining the overall cost of purchasing a timeshare.