How To Write A Cash Receipt Letter . The business letter can also communicate the date at which the receipt of the product is expected. This receipt contains the details of the money amount and payment so that it can serve as proof that the organization has given the money. Cash Receipt Template from louiesportsmouth.com There is no need to ramble, but a thank you goes a long way. 2.3 petty cash receipt template. The cash sale receipt is usually generated when a vendor accepts cash or its equivalent from another party, usually a customer, an investor, or a bank.