Subject: Urgent Payment Reminder — Your Account Balance is Overdue Dear [Client's Name], We hope this letter finds you well. We would like to bring to your attention that, according to our records, there is an outstanding balance on your account with [Your Company Name]. It appears that payment for Invoice #[Invoice Number] has not been received and remains overdue. We understand that oversights can happen, so we kindly request your immediate attention to settle this outstanding amount of [Total Amount Due]. Timely payment is essential for us to maintain the quality of service that we strive to provide our valued clients like yourself. Here are the details of the overdue invoice: Invoice Number: [Invoice Number] Invoice Date: [Invoice Date] Total Amount Due: [Total Amount Due] Due Date: [Due Date] We kindly request that you take the necessary steps to remit payment as soon as possible. You can conveniently make your payment in one of the following ways: 1. Online Payment: Visit our secure online portal at [Payment Portal URL], log in using your customer ID ([Customer ID]), and follow the instructions to settle your outstanding balance. 2. Bank Transfer: Please transfer the amount due to the following bank account: Bank Name: [Bank Name] Account Holder: [Account Holder's Name] Account Number: [Account Number] Routing Number: [Routing Number] 3. Check Payment: Issue a check payable to [Your Company Name] and send it to the following address: [Your Company Name] [Your Company Address] [City, State, ZIP] To avoid any inconvenience or potential disruption to your account, we kindly request that you arrange payment within [X] days of receiving this letter. If we do not receive payment or receive any communication regarding delayed payment within this time frame, we will have no choice but to take further action, such as involving a collection agency or pursuing legal options. We genuinely value your relationship with us and wish to continue providing you with our quality services. We request your prompt attention to avoid any unnecessary complications. If you have already made the payment, please accept our sincere apologies and disregard this letter. Should you have any questions or concerns regarding this matter, please feel free to contact our Accounts Receivable department at [Phone Number] or via email at [Email Address]. Our team is ready to provide any assistance and clarification you may require. Thank you for your immediate attention to this matter. Sincerely, [Your Name] [Your Title/Position] [Your Company Name] [Your Contact Information]