United Kingdom Purchase Order Generator

What is a purchase order, and how does it differ from a quote or an invoice?

A purchase order is issued by the buyer to the supplier to authorise a purchase before delivery takes place. It sets out exactly what is being ordered, at what price, and under what terms, and it gives the supplier a written instruction to proceed.

A quote is different: it is prepared by the supplier, before any order exists, simply to propose a price. Nothing is confirmed until the buyer accepts the quote — often by issuing a PO in response.

An invoice comes later still. Once the supplier has delivered the goods or completed the work, they issue an invoice to request payment, usually referencing the original PO number so both sides can match the two documents during reconciliation.

How to create a UK purchase order with this generator

1. Enter your buyer details — company name, address and VAT number if you are VAT-registered.
2. Add the supplier’s details, including their VAT number if they charge VAT.
3. Set the ship-to address, or tick “same as buyer address” if delivery goes to your own premises.
4. Fill in the PO number, PO date, requested delivery date and payment terms (e.g. Net 30).
5. Add each line item with description, quantity and unit price — the generator calculates line totals automatically.
6. Apply VAT at the correct rate (20%, 5% or 0%) to the relevant lines, plus any discount or delivery charge.
7. Add an approver name and title if your internal process requires sign-off before the PO is sent.
8. Review the totals and download the purchase order as a PDF ready to email to your supplier.

What should a UK purchase order include?

There is no single legal template for a PO in the UK, but a well-formed one should give both sides everything they need to fulfil and later invoice the order correctly:

• A unique, sequential PO number for tracking and matching against the eventual invoice
• Full buyer and supplier names and addresses
• VAT registration numbers for both parties where either is VAT-registered
• A clear description of each item or service, with quantity and unit price
• The applicable VAT rate (standard 20%, reduced 5%, or zero-rated) shown per line or as a total
• Delivery address and requested delivery date
• Agreed payment terms, such as Net 30 or payment on delivery
• Any authorisation or approval details required by your internal procurement process

From purchase order to invoice: the UK procurement workflow

A PO is the starting point of a paper trail, not the end of one. Once your supplier delivers the goods or completes the service, they should issue a VAT invoice that references your PO number, so your accounts team can quickly match the invoice against what was originally authorised, at the price originally agreed.

If you are the supplier receiving a PO from a customer, you can use our invoice generator to raise the matching VAT invoice once the order has been fulfilled — carrying the same PO number, line items and pricing across for a clean audit trail.

Why this generator beats a static UK PO template

Xero and similar providers offer a branded, static PO template PDF, but you typically need to create an account or sign up before you can download or customise it. This tool works the opposite way round.

You can fill in VAT-registered supplier fields, apply the correct UK VAT rate (20% standard, 5% reduced, or 0% zero-rated) per line item, and generate a fully-calculated PDF immediately — with no signup, no login and no watermark.