On the _______day of ______ in the year_____, before me, the undersigned, personally appeared. Learn what an acknowledgement receipt is and how to create one for your business (with a template and two examples).Specify the basis for the rate paid, i.e. Salary for varying hours, day rate, etc. A sample acknowledgement letter helps acknowledge payments received from clients as advance payments, membership, loans, or school fees. A receipt is a formal declaration that money was exchanged for something.