General banks will require proof of income, if not, you can provide the following information:
1, certificate of equity fund rights
2. List of bank deposit accounts
3. Business license
4, motor vehicle related documents
Real estate mortgage does not necessarily require that you have real estate to mortgage now, but mortgage the house you are going to buy to the bank. As for the income certificate and other materials, it is only the proof that the bank uses to refer to whether you have the ability to repay. To put it bluntly, the bank is considering his loan risk.