1. mortgage to buy a house, the bank/provident fund has lent money and obtained the purchase contract, loan contract and purchase invoice. The second-hand house needs a tax payment certificate and will be withdrawn during the loan period. If you buy a house in full, get the above information and withdraw it within two years after payment. 2. The provident fund can be advanced in the following three situations: 1. Buying a house by loan: the provident fund can be withdrawn once a year until the loan is paid off, and the amount withdrawn from each house cannot exceed the repayment amount of the loan in that year; 2. One-time payment for house purchase: for a one-time house purchase, you need to provide materials for withdrawing the provident fund within one year after the house purchase, and you can only withdraw it once; 3. Resignation: If there is no new work unit after resignation, it can be handled one month after resignation.