Southwest Public Libraries collects approximately $2.5 million each year from a 1 mill property tax levy that was approved by voters in November, 2010. This property tax is for 10 years. Prior to the November, 2010 passage of the property tax levy, SPL had never received any money from a local tax and relied exclusively on funding from the State of Ohio.
Southwest Public Libraries receives funding from two primary sources. The first is the Public Library Fund, which is funded by the State of Ohio and consists of 1.95% of General Revenue Fund taxes collected by the state. This fund provides approximately half of SPL's funding and has been cut significantly over the past decade. The other primary source of funding is the 1 mill property tax approved by voters in November, 2010. Money collected from library fines, fees, donations, and interest earned on investments accounts for less than 5% of SPL's funding.