There is also an upper limit on the credit card limit. Once you use a credit card to spend, use up the credit card limit or even exceed the limit, then the excess will naturally be displayed as a negative number.
Calculation method of credit card available limit: available limit = credit limit approved by the bank-unpaid bill debt-unrecorded but occurred transaction amount-other related interests and expenses.
Extended data:
Credit card negative limit is generally caused by the following reasons: the temporary limit expires. That is, the temporary limit will expire when it is used up, and a negative number will be displayed before repayment; Overlimit overdraft, overdraft exceeds a fixed amount, which will be displayed as negative before repayment.
There is also an overpayment. When the credit card repays, it will form an overpayment part, resulting in a negative line. The overpayment takes precedence over the quota and is deducted when spending.