Wioxpro EN 16931 Invoicing for WooCommerce

The French electronic invoicing reform sets two deadlines:

• 1 September 2026 — every VAT-registered French business must be able to receive an electronic invoice.
• 1 September 2027 — small and medium businesses must issue their invoices electronically and report their consumer sales to the tax administration.

Between businesses, a PDF sent by email will no longer be enough. A structured, machine-readable file is required so that the customer’s accounting software can pick up the amounts without retyping them.

This plugin produces that file from your WooCommerce orders.

What the plugin does

• Generates, for every paid order, the CII / EN 16931 XML, Factur-X BASIC profile
• Adds SIRET and EU VAT number fields to the checkout, shown only to business customers
• Validates the SIRET check digit, so a typo is caught in front of the customer instead of at invoice rejection time
• Applies continuous, gap-free numbering, as required by article 242 nonies A of annex II of the French tax code
• Exports the consumer sales summary, aggregated by day and VAT rate, for e-reporting
• Handles the VAT exemption scheme (article 293 B of the French tax code)
• Stores files in a protected directory, unreachable from the web

What the plugin does NOT do

Better said upfront than letting you believe you are compliant when you are only halfway there:

• It generates the XML, not the PDF/A-3. A complete Factur-X file is a PDF with that XML embedded in it. Here the XML is produced, validated and downloadable; embedding it into the PDF is planned for a later version.
• It does not transmit anything to a certified platform. Filing with a dematerialisation platform remains your responsibility.
• It does not replace your accountant, and it is not legal or tax advice.

No dependencies

The plugin bundles no third-party library. Plugins that ship their own copy of Dompdf, FPDI or an XML engine are the number one cause of conflicts between WordPress plugins. There is nothing here to break.

Compatibility

Compatible with High-Performance Order Storage (HPOS).

Language

The plugin interface and the generated documents are in French, since the reform it implements is French. The plugin is fully translation-ready.