2224 yuan. According to the inquiry of Agricultural Bank of China in official website, the mortgage interest of the real estate license is 5. 10% in half a year and 5.56% in half a year to one year, of which 40,000 yuan is a mortgage loan, which is multiplied by 5.56%, and the result is 2,224 yuan. Interest refers to the reward that the currency holder (creditor) gets from the borrower (debtor) for lending money or monetary capital.