A, mortgage to buy a house, the bank / provident fund has been released, and obtain the purchase contract, loan contract and purchase invoice, second-hand houses need to tax certificate, in the loan period to withdraw. If you buy a house with full payment, obtain the above information and withdraw it within two years after the payment. Second, the following three cases are available in advance of the provident fund: 1, loan to buy a house: each year you can withdraw a provident fund until the loan is paid off, the amount of money withdrawn from each set of housing can not be more than the amount of repayment of the loan for the year; 2, a one-time payment for the purchase of a house: a one-time purchase of a house needs to be in the purchase of a house within one year of the provision of materials to extract the provident fund, and can only be withdrawn once; 3, leaving: if there is no new unit of employment after leaving the job, you can apply for a month after leaving. The first step is to make sure that you have a good understanding of what you're doing and how you're doing it.