Maintenance fund, also known as "public maintenance fund" and "special maintenance fund", refers to the fund that the owners of residential properties pay a certain standard of money to a special account for the maintenance of public parts and facilities in the property area, and authorize the owners' committee to manage and use it in a unified way.

The maintenance fund is jointly raised by the owners of the property, who enjoy the ownership of the maintenance fund according to the proportion of payment, but the right to use it belongs to all owners.

The collection method of the national public maintenance fund is:

1, commercial housing: generally 2%-3% of the house price, and 2% of the house price in most areas, which is paid by the purchaser. Except Hangzhou, 8% of the construction cost is paid by the developer.

2. Public housing: In addition to the 2% paid by the purchaser, the unit selling public housing has to pay 20% of the house price, which is deducted from the income from the sale of the house.

3, non residential, referring to residential execution, also according to the construction area.