Legal analysis: 1. The calculation formula of deed tax is: tax amount * tax rate; The calculation formula of maintenance fund is: construction area per square meter cost * proportion * area. The tax rate of deed tax is related to the type of house we buy. 3. The deed tax and public maintenance fund policies are different in different cities. Please consult the staff of the local Housing Authority about how to charge.

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. 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.