the charging standard of public maintenance fund is generally 2/1 to 5/1 of the purchase price.

the public * * * maintenance fund, also known as residential special maintenance fund, is a sum of money paid by the owner for the maintenance, renewal and transformation of the parts and facilities used in the property. The establishment of this fund aims at ensuring the long-term maintenance and normal use of the property and safeguarding the interests of the owners. The charging standard, payment method and use management of public maintenance funds are usually stipulated by relevant national laws and regulations and local policies, and determined according to factors such as property type and construction area.

The use conditions of the public maintenance fund mainly include the following points:

1. Special fund: the maintenance fund can only be used for the maintenance of public parts in special communities.

2. Serious failure or damage: When the equipment and facilities have serious failure or damage, they can no longer be used normally or there are great security risks, you can consider using the maintenance fund.

3. Infrastructure maintenance or upgrading: Infrastructure maintenance or upgrading is needed in public areas of residential areas or buildings to improve the quality of life of residents, and it is also a common situation to use maintenance funds.

4. professional evaluation: after professional evaluation, it is found that some equipment has exceeded its normal service life and needs to be repaired or replaced to ensure its normal operation and safety.

to sum up, the specific amount of the public maintenance fund depends on many factors, including property type, regional policy and construction area, so it is impossible to give a fixed amount.

Legal basis:

Measures for the Administration of Special Maintenance Funds for Residential Buildings

Article 7

The owners of commercial houses and non-residential houses shall deposit special maintenance funds for residential buildings according to the construction area of the property they own, and the amount of the first special maintenance fund for residential buildings deposited per square meter of construction area shall be 5% to 8% of the construction and installation cost of local residential buildings per square meter. 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 the 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.