Subject: Apology for Late Payment — Friendly Tone | Kings New York Dear [Recipient's Name], I hope this letter finds you in good health. I am writing to sincerely apologize for the delay in remitting the payment for [invoice number/transaction details] that was due on [due date]. Please accept my apologies for any inconvenience caused due to my oversight. First and foremost, I want to assure you that this delay was purely unintentional and not a reflection of my commitment to meeting payment obligations promptly. Nevertheless, I understand the significance of timely payments in maintaining a healthy business relationship, and I deeply regret any concerns or inconveniences this may have caused. I take full responsibility for the oversight and want to assure you that the payment has been processed and will be effectively transferred to your account within [mention revised timeline, if applicable, otherwise state "immediately"]. I have attached the receipt and proof of payment for your reference. Furthermore, please allow me to address the steps taken to ensure this incident does not happen again. I have implemented a more stringent reminder system to promptly alert me of impending payment deadlines. Additionally, I am actively exploring options to automate payment transfers, aiming to streamline the process and eliminate any future delays. As a valued business partner, your satisfaction is of paramount importance to me and I genuinely regret any tarnished impression caused by this delay. It is my utmost priority to restore your faith in our financial commitment and professionalism. I sincerely hope you can accept my heartfelt apology and understand that this delay was an isolated incident. I highly value our business relationship and will strive to ensure smooth and timely transactions moving forward. Thank you for your understanding and patience in this matter. Please do not hesitate to reach out to me directly at [your contact details] if you have any additional concerns or require further clarification regarding the delayed payment. Once again, I express my sincere apologies for any inconvenience caused and remain grateful for your continued support and trust. Yours sincerely, [Your Name] [Your Title/Position] [Company Name] [Contact Details]