Purchase Invoices

A Purchase Invoice records the supplier's invoice — the bill they sent you. It posts your expense (or inventory cost) and the payable into the books.

Where Purchase Invoices come from

Source	When
Purchase Order	You committed to buy first, supplier invoices after
Purchase Receipt	You've physically received and are now billing
Direct (ad-hoc)	Small purchases without a PO — utilities, taxis, one-off services
PEPPOL inbound	The supplier sent an e-invoice via your service provider — see eInvoicing → Receiving Invoices

From an upstream document: Create → Purchase Invoice. Lines copy.

Create from scratch

Purchase Invoice → New:

Field	What
Supplier	The party you're paying
Supplier Invoice No	Their invoice number — Dutch tax requires you to record this
Supplier Invoice Date	The date they billed
Posting Date	The date the expense/cost belongs to in your books (often = Supplier Invoice Date)
Items	Pick item, qty, rate (must match their invoice)
Purchase Taxes and Charges	Auto-applied; BTW handled on NL-localised sites

What happens on submit

Invoice is locked
A General Ledger entry posts: debit expense (or inventory), debit BTW receivable, credit supplier payable
Invoice appears on the Payables Overview until paid

Paying the supplier

When you pay: see Supplier Payments.

Three-way match

If you want strict procurement: ERPNext can enforce a three-way match between PO, Receipt and Invoice — quantities and rates must agree across all three. Configure via Buying Settings → Maintain Same Rate Throughout Purchase Cycle.

Credit notes from suppliers

Got a credit from a supplier (refund, return acceptance)? Create a Purchase Invoice with Is Return = Yes. Reverses the postings.

Common situations

Invoice for an item not on a PO — add a new row directly on the Purchase Invoice; works for ad-hoc purchases
Invoice for partial PO — adjust the quantities on the Purchase Invoice; remaining open quantity stays on the PO
Different invoice rate vs PO rate — adjust the rate on the Purchase Invoice; you may want to update the PO via Amend for audit clarity
Supplier currency differs — set the Exchange Rate; expense posts in your books in EUR, payable to supplier in their currency

Status

Same as Sales Invoice: Draft → Unpaid → Partly Paid → Paid → Overdue.