Legal Analysis: Mortgage loan requires a business license. And generally, industrial and commercial registration still needs one year. Whether a business license is required for real estate mortgage mainly depends on the borrower's capital demand or loan product type. First of all, if your capital demand is not high, you can often handle it without a business license. A business license is required only if the loan amount exceeds 1 million. Or when the borrower's loan is used for business operation rather than daily consumption, it is necessary to provide a business license. Legal basis: Article 688 of the Civil Code of People's Republic of China (PRC). If the parties agree in the guarantee contract that the guarantor and the debtor shall be jointly and severally liable for the debt, it is a joint liability guarantee. When the debtor of joint and several liability guarantee fails to perform the due debt or the circumstances agreed by the parties occur, the creditor may require the debtor to perform the debt or require the guarantor to assume the guarantee liability within the scope of its guarantee.