The charging standard of public maintenance fund in 2022 is 1, and the housing public maintenance fund is charged according to a certain proportion of the purchase price, and the charging standard is 2% of the total house price; 2. The charging standard of housing maintenance fund depends on whether it is a multi-storey house, and the charging standard of different housing structures is different; 3. According to different residential properties, the design of non-residential properties or single building structures in residential quarters is different, and the charging standards are also different; 4. Housing maintenance funds are generally collected by developers, and are mainly used for maintenance or renovation of residential public facilities and equipment after the expiration of the maintenance period.