Payment reference types

Payment references can be essential when creating invoices for your customers. Payment references are references that your customer should use when paying an invoice - it will allow you to match the incoming payment to the outstanding invoice. The following article explains more about payment references and how you can use them in your invoices with Zervant.


What are the payment reference types supported by Zervant

European Standard (ISO standard)
An alphanumeric string, up to 25 characters long, with the letters "RF" at the beginning.
Zervant automatically pre-fills the letters RF when this type is chosen. You then have to add between 3 and 23 numbers after that.

Finnish Standard
A numeric string with 4 to 20 digits. The last digit is a checksum.
Zervant pre-fills a number based on the invoice number and adds the check digit when creating a new invoice. However, you can also insert your own reference number.

Belgian Standard
A visual string built like the following +++ 3 digits / 4 digits / 5 digits / +++ (example: +++010/8068/17183+++). The last 2 digits are a checksum.
Zervant pre-fills this automatically randomly. You cannot change it.


How to use the reference types

You can select the payment reference type:

  • from the invoice >Settings side panel under >Visible references
  • from the label >Payment reference itself in your invoice
  • by default in >My Account >Invoicing settings under >Visible references


  • If you are sending e-invoices, payment references have to follow some rules, set by the different actors of the e-invoicing networks. Please select the payment reference type that applies.
  • If you are sending invoices with a QR-Code (Switzerland), please select the payment reference type "Creditor Reference)"
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