Legal analysis: the loan contract number is in the loan contract, which is written on a piece of paper with a loan contract number on it and on another piece of paper. According to the submitted certification materials, when paying wages and paying taxes on a monthly basis, it directly helps to apply for the deduction of personal income tax by using the loan interest of housing provident fund. The deduction method is to deduct the interest of housing provident fund loans paid by individuals from the taxable income of individual monthly wages and salaries. As long as you bring your personal ID card and loan account, the relevant bank that handles the loan every month can directly print a "Notice of Repayment of Personal Housing Provident Fund Loan" and let the bank staff stamp the cash receipt.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 667 A loan contract is a contract in which the borrower borrows money from the lender, repays the loan at maturity and pays interest.

Article 680 usury is prohibited and the loan interest rate shall not violate the relevant provisions of the state. If there is no agreement on the payment of interest in the loan contract, it shall be deemed that there is no interest. If the loan contract does not specify the payment method of interest, and the parties cannot reach a supplementary agreement, the interest shall be determined according to the local or the parties' trading methods, trading habits, market interest rates and other factors; Loans between natural persons are regarded as interest-free.