The sample acknowledgement letters for receipt of payment provided below can be used as format templates for official and personal purposes. An acknowledgment is one of the most common types of notarial acts, but it often confuses Notaries.Here are 5 steps to performing an acknowledgment. What do you need to include in your donation acknowledgment letter? List all payments received from Prime Contractor during reporting period indicated above. Invoice Amount. Date. 1. 2. 3. 4. We'll show you how with 5 acknowledgment email reply samples and a completely customizable template. Learn what an acknowledgement receipt is and how to create one for your business (with a template and two examples). The following is a list of interactive forms. These forms should be downloaded and completed on your device and printed.