Free Purchase Order Generator

Purchase orders as a financial control document

A purchase order (PO) is more than an ordering tool — it is a financial commitment and a key internal control. Issuing a PO before goods or services are received creates an authorised spending record that your AP team can match against the supplier's invoice. Without a PO, there is no baseline to verify whether what arrived matches what was ordered, and at what agreed price.

A compliant Australian PO should include a unique PO number, your business name and ABN, the supplier's details and ABN, a clear description of each line item with quantities and unit prices, the GST treatment, delivery address, expected delivery date, and any relevant payment terms. The PO number becomes the reference that links the order to the delivery note and the invoice throughout the AP process.

In accounts payable, PO matching is the process of comparing the supplier invoice against the original PO — and in three-way matching, also against the delivery note or goods receipt. Discrepancies in quantity, price, or description are flagged before payment is approved. This prevents overcharges, duplicate payments, and fraud, and is particularly important for construction, manufacturing, and wholesale businesses processing large volumes of supplier invoices.

How to use this PO generator

1. Enter your business name, ABN, and address. Add the supplier's details and a unique PO number.
2. Set the expected delivery date and delivery address. These fields become the record your receiving team checks against.
3. Add line items with descriptions, quantities, unit prices, and GST. The tool calculates totals automatically.
4. Download the PDF and send to your supplier. File a copy so your AP team can match the incoming invoice against it.

Is a PO legally binding in Australia?

A PO becomes a legally binding contract when the supplier accepts it — either by signing, acknowledging it in writing, or by fulfilling the order. Many disputes about quantity, price, or delivery arise because there was no PO, or the PO terms were not clearly stated. A well-drafted PO protects both parties.

Should GST be shown on a purchase order?

Yes. Showing the GST amount on the PO sets clear expectations and makes invoice matching easier. If the supplier's invoice shows a different GST amount, that discrepancy is caught early rather than during reconciliation. Note that a PO is not itself a tax invoice — you still need a valid tax invoice from your supplier to claim GST input tax credits.

What happens when an invoice doesn't match the PO?

If the invoice value, quantity, or description doesn't match the PO, the invoice should be held and queried with the supplier before payment is released. Common causes include price changes, partial deliveries, or data entry errors. Having a defined exception process — rather than just paying and adjusting later — prevents overpayments and simplifies your audit trail.