Your credit card statement shows the minimum payment due and amount of interest charged each month.
You can also find your credit card interest rates on the 'Your interest explained' section of your statement. There you will see your standard interest rates and any promotional rates, including their expiry date.
Interest is charged based on the average daily balance on the credit card account. The amount of interest charged will depend on your outstanding balance each month.
We work out your credit card daily interest charge by multiplying your interest rate by the average balance at the end of the day since your last credit card statement was issued. This daily interest charge is then multiplied by the number of days since your last statement was issued. We do this for each type of balance (e.g. card purchases, balance transfers) to give the total interest charge on your account.
For more details on how interest is charged on your credit card, you can read this handy guide.