The repayment time has expired. WD overdue means that the online debt has exceeded the repayment time. Overdue is generally used on credit cards. Overdue on a credit card does not mean that you will not pay back after the last payment date, but it means that you will not be overdue until the bill date of the next month. Failure to repay overdue payments will affect your credit score and incur liquidated damages and interest. In serious cases, you will be sued by the court and imprisoned.