Getting paid

Payment reference

A payment reference is the identifier or message a customer includes with a bank transfer or other payment so the seller can match the money to the correct invoice or account. It may reuse the invoice number or follow a banking scheme. The required format should be copied exactly because some references include validation digits.

Also called: bank transfer reference, remittance reference
Appears on: In payment instructions and bank-transfer details
Related task: Help the seller match an incoming payment
Review note: Banking schemes and required formats vary by country
Last reviewed: 10 September 2026

Why this matters when you invoice

A reliable payment reference reduces manual matching and helps prevent a received payment from remaining unidentified or being applied to the wrong invoice.

Where it appears on an invoice

Place it beside the bank account or payment instructions. Tell the customer exactly what to enter and distinguish it from the invoice number when the values differ.

Worked example

Payment reference example

Invoice IC-1042 asks the customer to enter RF18 5390 0754 7034 as the transfer reference. When the payment arrives, the seller uses that reference to match it to the invoice. If you need to create or verify that structured format, use the RF creditor reference generator and checker.

Payment reference examples by country

Many countries use a structured reference with a check digit instead of free text. The examples below show the common formats; copy the exact value from the invoice.

Free text: the invoice number, for example INV-1042, when the payment method accepts a message.
International (RF creditor reference): starts with RF and two check digits, for example RF18 5390 0754 7034.
Norway (KID): a numeric customer identification number with a check digit. Use the KID number generator.
Sweden (OCR number): a numeric reference for Bankgiro payments. Use the OCR reference tool.
Finland (viitenumero): a domestic reference number with a check digit. Use the viitenumero tool.
Denmark (FIK): a payment line with a card type, payment ID and creditor number. Use the FIK payment reference tool.

If you are paying: enter the reference exactly as the invoice shows it. If the invoice gives no reference, use the invoice number so the seller can match your payment.

Common mistakes

Confusing the reference with the IBAN or account number.
Changing a reference that contains check digits.
Providing several possible references without saying which one to use.

Put it into practice

Use the matching InvoiceCraftly resource to apply this concept, then review the result in the context of your invoice and agreement.

Create a SEPA payment QR

This page explains common invoicing usage. Your agreement and applicable local rules determine what applies to a transaction.

Frequently asked questions

Can the invoice number be the payment reference?

Yes, when the payment method accepts free text and the seller's process uses invoice numbers for matching.

Is a payment reference the same as an IBAN?

No. The IBAN identifies the bank account; the payment reference helps identify the invoice or purpose of the transfer.