Do not exceed 10% of the property service fee. According to the information in the Measures for the Administration of Charges of Property Service Enterprises in Hainan Province, the proportion of maintenance funds charged to community owners shall not exceed 10% of the property service fee. For example, if the property service fee is 1 0,000 yuan per month and the maintenance fund ratio is 10%, then 1 0,000 yuan will be charged as the maintenance fund every month.