Yes, if you pay 100 per month overdue on your credit card, the interest will be reduced.

Details:

1. After a credit card is overdue, interest charges will usually accrue. When you repay 100 yuan every month, although interest will still accrue, the growth rate of overdue interest will slow down relative to the outstanding amount.

2. Repaying RMB 100 is not enough to fully cover the increase in overdue interest. Overdue interest is generally calculated on a daily basis and is based on the outstanding principal balance. The monthly repayment of 100 yuan can only partially offset the accumulation of overdue interest.

3. Gradual repayment of arrears can reduce the size of the outstanding principal, thereby reducing the growth of overdue interest. As time passes and the outstanding principal decreases, so does the basis on which past due interest is calculated.

4. In order to avoid further growth of debt, you should repay as much of the overdue amount as possible. The monthly repayment of 100 yuan is only the minimum payment. If you can pay more, it will help to pay off overdue debts faster.

Summary:

Repaying 100 yuan per month can slow down the growth of overdue interest, but it cannot completely eliminate interest charges. By gradually paying off the overdue amount, you can reduce the size of the outstanding principal and reduce the basis for calculating overdue interest.

Extended information:

If the credit card is overdue for a long time or the debt is large, it may take a long time to repay 100 yuan per month. In this case, it is recommended to contact the bank as early as possible to seek repayment arrangements or apply for a payment deferment. In addition, pay attention to avoid overdue loans again, and keep abreast of relevant laws, regulations and bank policies in order to take correct repayment measures.

Please note: The above information is for reference only. The specific repayment methods and interest calculation methods may vary depending on bank policies and personal circumstances. It is recommended to consult the credit card issuing bank or professional institution for more accurate information.