A returned payment fee is typically assessed by your bank or the bill-paying merchant when an electronic transaction, automated clearing house (ACH) transfer, or check fails to clear due to insufficient funds in your account, an incorrect account number, or a temporarily frozen status. When a payment bounces or is rejected, financial institutions and payment processors apply this charge to cover administrative costs and handling overhead. To avoid recurring penalties, it is always recommended to verify your available account balance before scheduling automated debt settlements or bill payments.