WHMCS 9.0 E-Invoicing Peppol BIS 3.0: Complete Guide 2026
WHMCS 9.0 E-Invoicing Peppol BIS 3.0: Complete Guide 2026
WHMCS 9.0 introduces support for Peppol BIS Billing 3.0 (XML/UBL), helping you meet growing global e-invoicing compliance standards with ease. This guide explains what Peppol e-invoicing is, how it works in WHMCS 9.0, and how to use it for automated, compliant invoicing across key markets.
E-Invoicing. Simplified.
Automated, compliant invoicing across global markets with zero manual effort.
Issue Peppol BIS 3.0-compliant e-invoices automatically to meet regional regulations. Simplify invoicing, reduce complexity, and stay ahead of evolving compliance requirements.
What is Peppol E-Invoicing?
Peppol (Pan-European Public Procurement On-Line) is a global network for electronic procurement and invoicing. Governments and businesses in many countries require or prefer e-invoices that conform to the Peppol BIS (Business Interoperability Specification) Billing 3.0 standard, which uses XML/UBL format.
Key markets that use or are adopting Peppol-style e-invoicing include the United Kingdom, Australia, Singapore, and various European countries. Sending compliant e-invoices helps you meet local regulations, avoid penalties, and streamline B2B and B2G transactions.
What WHMCS 9.0 Adds
WHMCS 9.0 adds native support for generating Peppol BIS V3.0 XML/UBL e-invoices. You can:
- Generate Peppol-compliant invoices for key markets (UK, Australia, Singapore, and more) directly from WHMCS
- Attach e-invoices to outgoing emails automatically, so clients receive the compliant document without manual steps
- Reduce manual work and compliance risk by automating format and delivery
Stay Compliant and Efficient
- Generate Peppol-compliant invoices for key markets built directly into WHMCS
- Save time and reduce risk: automated e-invoices attached to outgoing emails
- Streamline workflow and eliminate manual steps
How It Works in WHMCS 9.0
When e-invoicing with Peppol BIS 3.0 is enabled and configured in WHMCS 9.0:
- Invoices are generated in the usual way within WHMCS.
- WHMCS can produce a Peppol BIS 3.0 XML/UBL version of the invoice.
- This e-invoice can be attached automatically to the invoice email sent to the client, so they receive a compliant document without you doing anything extra.
This feature is designed to deliver real value as adoption grows. WHMCS is actively monitoring usage to ensure it meets compliance needs so you can focus on growth, not paperwork.
Who Should Use Peppol E-Invoicing?
- Businesses selling into UK, Australia, Singapore, or other Peppol-adopting regions
- Companies that need to meet mandatory e-invoicing or preferred format requirements
- Anyone wanting to automate invoice delivery in a standard, compliant format
Related WHMCS 9.0 Features
E-invoicing works alongside other WHMCS 9.0 compliance and invoicing features:
- Credit and Debit Notes — proper audit trail and corrections without editing original invoices
- Improved VAT Compliance — VAT validation and display at checkout
Learn More
For the full list of WHMCS 9.0 features and upgrade steps, see our WHMCS 9.0 Release: New Features & Upgrade Guide 2026. For official documentation, check the WHMCS 9.0 Release Notes.