Which date commonly appears on an invoice?

The date by which payment should be made is a critical component of an invoice. This date, often referred to as the "due date," specifies the deadline for the recipient to settle the payment for the goods or services rendered. Including this date is essential as it clarifies the expectations for payment and helps to prevent misunderstandings regarding when the invoice must be paid. It is not only significant for the payer, ensuring they meet their financial obligations on time, but it also aids the seller in managing cash flow and accounting accurately.

While the other options—dates related to when the purchase order was filled, when the invoice was mailed, and when the order was placed—are relevant in some contexts, these dates do not fundamentally define the transaction's payment terms as the due date does. The due date serves to uphold the terms of sale and contributes to the overall structure of business transactions, making it the most commonly referenced date on an invoice.