You can borrow 800 thousand to 400 thousand. According to the Regulations on the Management of Housing Provident Fund, if the balance of the provident fund account is 654.38+00000, the loan can be 80,000 to 400,000, and the loan amount cannot be higher than 80% of the total price of the purchased property. If the purchased property is an auction house, If the purchased house is a second-hand house, the loan amount shall not be longer than 60% of the total price of the purchased house, and the loan amount shall not be higher than 70% of the total price of the purchased house.