She should consider lenders that allow her to make overpayments so she can repay the mortgage sooner if she can afford to. Times, Sunday Times.Examples of 'overpaid' in a sentence. Examples from Collins dictionaries. The salary overpayment resulted because . Overpayment issues occur when patients or insurance companies pay healthcare providers more sum than they're owed. We have identified the following overpayment and are in good faith voluntarily refunding all monies collected in error. The lower right hand corner of the overpayment demand letter shows a series of numbers such as this example: 999. What is an overpayment? An overpayment occurs when someone pays more than the required or agreed-upon amount for a product or service.