Is the provident fund deposit base the same as the social security base?

It's different. According to the query of social security network, the payment ratio of the deposit base of housing provident fund and the payment base of social security is also different. The proportion of units paying endowment insurance is 20%, and the proportion of individuals paying endowment insurance is 8%. Both of them pay housing provident fund. Social security base refers to the social insurance payment base of employees in a social security year, which is determined according to the monthly average amount of all employees' wage income in the previous year between 1 and 12.