France's e-invoicing mandate, what changes on 1 September 2026

On 1 September 2026, France switches on its long-delayed e-invoicing receive obligation. Every French business, regardless of size, has to be technically capable of receiving a structured electronic invoice from that date. The send obligation phases in afterwards: large and mid-sized firms from 1 September 2026, small and very small firms from 1 September 2027.

The mandate has been postponed twice since the original 2024 target. This time there is no slack left in the calendar. The Direction Générale des Finances Publiques (DGFiP) confirmed the dates in late 2024, the Y-track infrastructure is operational, and the Plateforme de Dématérialisation Partenaire (PDP) certifications are being issued. If your trading partners include French entities, the next four months are the window to confirm you can both issue and receive.

What the French mandate actually requires

France took a different architectural choice from Belgium and the Netherlands. Instead of a four-corner Peppol-only model, France runs a Y-shaped architecture:

• PPF (Portail Public de Facturation): the public portal, mandatory routing point for invoice and lifecycle data reporting to the tax authority.
• PDP (Plateforme de Dématérialisation Partenaire): private certified service providers that businesses connect to. PDPs interconnect with each other and with PPF.
• OD (Opérateur de Dématérialisation): non-certified providers that ride on top of a PDP for value-added services.

In practice, every French B2B invoice from September 2026 onwards has to pass through either a PDP or directly through PPF. Email PDFs, even with embedded XML, are out. Direct EDI between two parties, without PDP/PPF involvement, is also out: the lifecycle data still has to be reported.

The accepted formats are Factur-X, UBL, and CII. Factur-X is the politically-favoured format because the standard originated in France and provides the human-readable archival layer the tax authority wants.

Cross-border: when does the French mandate apply to you?

The rule is simpler than the architecture: the mandate applies based on where the invoice is issued or received in France. Specifically:

• A French entity issuing an invoice to anyone has to use the French e-invoicing system.
• Any entity issuing an invoice to a French taxable buyer has to deliver it through the French system.
• A non-French supplier invoicing a French buyer can connect via a PDP, or use the Peppol-to-PDP interconnection that several PDPs offer.

This is the part most non-French exporters miss. If you are a Dutch, German, or Belgian business invoicing a French buyer in October 2026, you cannot just email the PDF. You have to route it through a PDP, or via Peppol if your PDP supports the inbound bridge.

The Peppol bridge is the path of least resistance for most non-French SMEs. Several certified PDPs accept Peppol BIS Billing 3.0 invoices and translate them onward into the French system. The sending business does not need to integrate with the French stack directly: it sends to its own Peppol Access Point, the PDP receives, the buyer is reachable.

The timeline in one column

• 15 December 2025: PDP certification process formally open.
• 1 September 2026: receive obligation for all French businesses. Send obligation for large (>5,000 employees) and mid-sized (250-4,999 employees) firms.
• 1 September 2027: send obligation extends to small firms (<250 employees, <€50M turnover) and very small firms.
• From September 2027: full coverage; transactional data reporting (e-reporting) for B2C and cross-border supplements the B2B e-invoicing.

The receive obligation on 1 September 2026 is the date that catches the most exporters off-guard. Even if your French buyer is a small firm not yet required to send electronically, they are required to receive electronically. If you keep emailing them PDFs, they are technically non-compliant on the receive side, and they will increasingly tell you so.

What to do in the next 90 days

The work splits into two tracks: confirming your French buyers’ readiness, and confirming your own outbound capability.

For your French buyer base:

1. Identify the top 20 French entities you invoice. For each, check whether they are reachable on Peppol. You can do that one VAT number at a time at /check/peppol and get a verdict in seconds.
2. For any buyer not yet on Peppol, ask them which PDP they will use. They have to pick one before September. If they do not know yet, that is your warning sign: they are behind schedule and you may end up routing manually.
3. Confirm whether your invoices to them currently reach a structured format or still rely on PDF email. The September date applies to every invoice, not just new business.

For your own outbound:

1. Validate that your invoicing system can produce Factur-X EN 16931 or UBL. If it can produce neither, that is the gap to close first.
2. Test a sample invoice through the public validator at /check to confirm the file passes both PDF/A-3 and EN 16931 schema validation. We see roughly 15% of pipelines failing at one of the two layers without anyone noticing.
3. Confirm with your PDP (or Peppol provider) that they have the French interconnection in place. Peppol-to-PDP is the cheapest route for SMEs; direct PDP integration makes sense at higher volumes.

What changes if you already do business in Belgium

If you are already issuing Peppol invoices to Belgian buyers (mandatory since January 2026), you have most of the technical work done for France. The format is the same, EN 16931 over Peppol BIS Billing 3.0. The main French-specific addition is the lifecycle reporting that the PDP handles on your behalf: invoice lifecycle statuses (deposited, received, approved, rejected, paid) flow back into PPF, which feeds the tax authority’s transactional reporting. You do not have to build this; the PDP does it. You do have to make sure your accounting system reflects the statuses your PDP reports.

The takeaway

France in September 2026 is not Belgium with a French accent. The architecture is different, the mandatory routing through a certified PDP is unique to France, and the receive obligation lands on 100% of French businesses on day one. The good news is that if your invoicing already speaks EN 16931 and rides on Peppol, the cross-border bridge to France is short. The bad news is that “we will fix it after the summer” runs out of summer this year.