Tall man. The bank interest rate of 5.55% is already quite high. The interest rate of 5.55 refers to the annual interest rate of 5.55%. Generally speaking, it refers to the annual interest rate of 5.55%. Take 1 10,000 yuan as an example, with an annual interest rate of 5.5, which requires annual interest of 550 yuan and monthly interest of about 46 yuan.