The deed tax invoice of the house loan is not in the bank. According to the Interpretation of the Supreme People's Court on Several Issues Concerning the Application of Law in the Trial of Disputes over Commercial Housing Sales Contracts, the real estate license of house buyers is regulated by law. Many mortgage buyers get the real estate license within 90 days after getting the key, even if there is no specific time in the contract. The issuance time of the real estate license is the same as that of loans and lump-sum payments, except that an additional "other certificate" is placed in the bank. For many mortgage borrowers, they must be confused. Since it is a house, the developer can get the real estate license within 90 days after handing over the key. Some real estate licenses have been processed, but because many owners buy houses by loans, the banks temporarily detain them as collateral, and the real estate licenses can only be returned to the buyers after they have repaid their mortgages. In this case, property buyers can only get the real estate license after returning all the loans to the bank. Of course, property buyers can also repay in advance, and then get the real estate license in advance, which generally takes 15 to 20 working days to get the real estate license.