Lifelong interest-free loan is a form of credit activity in which banks or other financial institutions lend monetary funds at a certain interest rate and must return them, in which the interest rate is provided by banks free of charge or paid by the government and corresponding institutions under agreed conditions. The background of this interest-free loan is one of the control measures taken due to excessive inflation. Loans are time-limited and bear interest. There is no indefinite interest-free loan, only discount loan.