Legal basis: Article 16 of the Regulations on the Management of Housing Provident Fund: The monthly contribution of employees' housing provident fund is the average monthly salary of employees in the previous year multiplied by the contribution ratio of employees' housing provident fund. The monthly deposit amount of housing provident fund paid by the unit for employees is the average monthly salary of employees in the previous year multiplied by the proportion of housing provident fund paid by the unit. Seventeenth new employees should pay the housing provident fund from the second month of employment, and the monthly payment amount is the employee's monthly salary multiplied by the employee's housing provident fund payment ratio. The newly transferred employees of the unit shall pay the housing provident fund from the date when the transferred employees pay their wages, and the monthly deposit amount shall be the employee's monthly salary multiplied by the employee's housing provident fund deposit ratio. Article 18: The contribution ratio of housing provident fund for employees and units shall not be less than 5% of the average monthly salary of employees in the previous year; Conditional cities can appropriately increase the deposit ratio. The specific deposit ratio shall be drawn up by the Housing Provident Fund Management Committee and submitted to the people's governments of provinces, autonomous regions and municipalities directly under the Central Government for approval after being audited by the people's governments at the corresponding levels.