The charging standard of housing maintenance fund is: 5%-8% of the project cost for commercial housing, and 2% for public housing when it is sold. Under specific circumstances, we should identify and deal with real estate sales according to the specific types and actual conditions to avoid conflicts and disputes. The collection standard of housing maintenance fund is based on the Measures for the Administration of Special Maintenance Funds for Houses issued by the Ministry of Construction and the Ministry of Finance: the owners of commercial houses and non-residential houses should deposit special maintenance funds for houses according to the construction area of their own properties, and the amount of the first special maintenance funds for houses deposited per square meter of construction area is 5% to 8% of the cost per square meter of local residential construction and installation projects. The competent departments of construction (real estate) of the people's governments of municipalities directly under the central government, cities and counties shall, according to local conditions, reasonably determine and announce the amount of the first-phase residential special maintenance fund deposited per square meter of construction area, and make timely adjustments. For the sale of public housing, the special housing maintenance fund shall be deposited in accordance with the following provisions: the owner shall deposit the special housing maintenance fund according to the construction area of the property he owns, and the amount of the first special housing maintenance fund per square meter of construction area shall be 2% of the local housing reform cost price. Units selling houses shall, in accordance with the proportion of multi-storey residential buildings and high-rise residential buildings of not less than 20% and 30% respectively, draw special maintenance funds from the houses.

The main load-bearing structures of houses include foundation, internal and external load-bearing walls, columns, beams, floors and roofs. Public parts refer to outdoor walls, hallways, stairwells, corridors, etc. Public facilities and equipment refer to water supply and drainage pipelines and equipment, distribution cables and equipment, elevators, public lighting, fire-fighting facilities, green spaces, roads, ditches, non-operating parking garages, public cultural and sports facilities and other facilities and equipment owned and used by the owner. The maintenance fund is managed by the Housing Authority, and the application process is complicated.

Legal basis: Article 7 of the Measures for the Administration of Special Maintenance Funds for Residential Houses, the owners of commercial houses and non-residential houses shall deposit special maintenance funds for residential houses according to the construction area of their own properties, and the amount of the first special maintenance funds for residential houses shall be 5% to 8% of the cost per square meter of local residential construction and installation projects.