Not cost-effective. If the user has a certain economic ability, it is more cost-effective to choose a short term, such as 10 year, so that the repayment pressure is slightly greater, but the interest will be much less. If you have a strong repayment ability, you might as well live a shorter life. The loan is 400,000 yuan, and the interest rate is 6.55%. The total repayment principal and interest in 20 years is 765,438+0,000 yuan, and it is 540,000 yuan in 65,438+00 years, with interest difference of 654,38+0, 700 yuan.