A sample acknowledgement letter helps acknowledge payments received from clients as advance payments, membership, loans, or school fees. STEP 1: Registration.To begin, click on this link: BAC Acknowledgement Registration. A description of the gift and the amount received; Any goods or services your organization provided in exchange for the donation. A gift acknowledgment letter recognizes donors and can be used to claim tax deductions. Acknowledgment of receipt for payment​​ Use this template to acknowledge the receipt of a payment. Dear (Recipient's name), I hope you are well. It must be completed with the financial requirements of the FTHB program in mind and on this form. Lender pre-qualification letters will not be accepted. Sample Donor Acknowledgement Letter for Cash Donation.