Which type of invoices results from the issuance of a purchase order?

PO-based invoices are directly related to the issuance of a purchase order and serve as a mechanism for ensuring that the goods or services received match what was originally ordered. These invoices reference the specific purchase order number and provide a clear means of reconciliation between the order, the receipt of goods, and the payment.

The connection between a purchase order and a PO-based invoice helps facilitate the accounts payable process by establishing a documented trail that can be audited and verified. This clarity ensures that the purchasing agreements are adhered to and that the company only pays for what it has actually received, supporting effective financial control.

Other types of invoices, such as standard invoices, non-PO invoices, and tax invoices, do not specifically arise from a purchase order. Standard invoices might be used in broader contexts without a linked purchase order, while non-PO invoices typically occur outside of the purchase order process, such as for expenses or services that did not require one. Tax invoices, while important for accounting and tax purposes, pertain primarily to the taxation aspects of the sale rather than the purchase order framework.