Total dollar amount collected for goods and services provided. While payment is not necessary for recognition of sales on company financial statements, there are strict accounting guidelines stating when sales can be recognized. The basic principle is that a sale can only be recognized when the transaction is already realized, or can be quite easily realized. This means that the company should have already received a payment, or the chances of receiving a payment is high. In addition, delivery of the good or service should have taken place for the sale to be recognized.