Dear [Name], I hope this message finds you well. I am writing to address the overdue payment for [invoice number] that was due on [due date]. As per the terms and conditions of our agreement, any outstanding balance beyond the due date incurs late fees. Please take note of the following details regarding the late fees imposed for unpaid invoices: 1. Initial Late Fee: We impose an initial late fee of [amount in dollars] or [percentage] of the unpaid invoice amount, whichever is greater, for payments that exceed the due date. 2. Recurring Late Fees: If the payment remains outstanding for a prolonged duration, we implement recurring late fees on a specified basis. Here are the details of the recurring late fees structure: a. For each week the payment remains past due, an additional fee of [amount in dollars] or [percentage] will be added to the outstanding balance. b. If the late payment extends beyond four weeks, an additional fee of [amount in dollars] or [percentage] will be charged every week thereafter. It is essential to settle the overdue payment promptly to avoid further accumulation of late fees. We understand that unforeseen circumstances may cause delays, but it is vital to adhere to the agreed-upon payment terms to maintain a good financial standing with our company. Please find the attached copy of the invoice [attach invoice] for your reference. Kindly review and process the payment at your earliest convenience. Should there be any concerns or questions regarding the invoice or late fees, feel free to get in touch with our dedicated accounts receivable department. Thank you for your prompt attention to this matter. We value our business relationship and would like to resolve any outstanding issues promptly. We look forward to receiving your payment soon. Warm regards, [Your Name] [Your Title/Organization] [Contact Information]