A purchase order (PO) is the formal document a buyer sends to a supplier to confirm an order — the items or services, quantities, agreed prices and delivery terms. Unlike an invoice, the PO is issued by the buyer before goods are supplied, and once the supplier accepts it, it becomes a binding contract. A clear, correctly structured PO prevents disputes over pricing and delivery, gives your accounts and stores teams a reference to match against the supplier's invoice and goods received note, and creates an audit trail for procurement. Note that a PO is not a tax document — GST is charged by the supplier on the tax invoice, not on the PO — but a good PO still records both parties' GSTINs and HSN/SAC codes so the eventual invoice matches the order. This guide explains every field a correct PO should contain and how to make one. With KukBook you can create, print and share purchase orders free, and for the GST tax invoices that follow, generate GSTR-1/3B, e-invoice and e-way bill data.
A purchase order is issued by the buyer to request and confirm an order before goods are supplied; an invoice is issued by the supplier after supply, demanding payment. The PO sets the agreed terms, and the invoice is later matched against it.
A PO is not a tax document, so no GST is charged on it — GST is levied by the supplier on the tax invoice. However, a good PO records both parties' GSTINs and the HSN/SAC codes and expected GST rate so the later invoice reconciles correctly.
On its own a PO is an offer to buy. Once the supplier accepts it (by confirmation or by supplying the goods), it becomes a legally binding contract on the terms stated, so the price, quantity and delivery details must be accurate.
Yes. KukBook lets you create, print and share purchase orders free, with all the standard fields above. For the GST tax invoices that follow your POs, KukBook can also generate GSTR-1/3B, e-invoice and e-way bill data.
Create, print and share purchase orders free with KukBook — and generate GSTR-1/3B, e-invoice and e-way bill data for the GST invoices that follow.