The so-called credit card installment business includes two types: one is shopping mall installment; The other is bill/single installment payment.

Shopping center staging:

Take your situation as an example. The CCB credit card in your hand cooperates with some domestic businesses, such as Gome and Suning. When you pay the bill in Gome and Suning, the cashier of the merchant will ask you for advice on whether to pay by installment. If not, pay directly. If you agree, the merchant cashier will directly handle the installment payment business for you on the spot. The so-called installment fee is negotiated between banks and businesses. According to different regions and merchants, the amount of fees charged is different, but the general principle is: 1. You only pay the minimum repayment amount, and the interest generated is much less; The longer your installment period, the higher the handling fee.

Bill/single installment:

After you pay the bill and swipe your card, you will be asked whether you want to apply for installment payment from the bank or call the bank for advice. You will be charged a certain handling fee. The rates of different banks are different. The general rate is 0.6% for your monthly installment, of which the lowest is 0.5% for Everbright 12, followed by 0.55% for CITIC.

Your supplementary question,

Your monthly installment payment is the installment payment of the goods that you have used your credit card.

Installment payment in a shopping mall means that you pay for the goods you buy by installment.

These two kinds of installment payment can save interest once only by paying the minimum amount when the funds are insufficient, because the installment fee is generally lower than the interest.

In other words, it's up to you whether to pay in installments or not. It doesn't matter which issue, which one depends on your decision.