Although the payment time of the maintenance fund is not clearly defined, it is recommended to pay it after the house is closed, otherwise it will affect the handling of all property certificates of the house. Most cities charge 2% or 3% of the total housing price, and the housing maintenance fund is earmarked, which can only be used for overhaul, reconstruction and reconstruction of public and shared parts of houses, and cannot be used elsewhere. After the sale unit collects it on its behalf, the maintenance fund also belongs to all owners. Yoshiya real estate encyclopedia, buying a house needs more knowledge.