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

On 1 September 2026, France switches on its long-delayed e-invoicing obligation. From that date every business established in France must be able to receive e-invoices, and large and mid-sized companies must also issue them and e-report; small and micro companies follow on 1 September 2027.

The mandate has been postponed before. This time there is no slack left in the calendar: the 2026/2027 dates were set by the Finance Act for 2024, and the tax authority published its first 101 approved platforms on 16 January 2026. 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 network of approved platforms around a public portal:

• PPF (Portail Public de Facturation): the public portal. It no longer exchanges invoices, but runs the central directory and passes invoice data to the tax authority.
• PA (plateforme agréée, formerly PDP): approved private platforms that businesses connect to. Approved platforms interconnect with each other and pass data to the PPF.
• OD (Opérateur de Dématérialisation): non-approved providers that ride on top of an approved platform for value-added services.

In practice, from September 2026 every e-invoice between French businesses must travel through an approved platform (plateforme agréée, PA); the public portal (PPF) no longer exchanges invoices but runs the central directory and passes invoice data to the tax authority. Email PDFs, even with embedded XML, are out. Direct EDI between two parties, without an approved platform, is also out.

France accepts three base formats on equal terms: UBL, CII and Factur-X.

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

The rule is simpler than the architecture: France’s e-invoicing obligation applies only when both supplier and customer are taxable persons established in France. Specifically:

• A business established in France invoicing another business established in France has to use the French e-invoicing system.
• A foreign supplier without a French establishment, even with a French VAT number, is outside the e-invoicing obligation.
• Its French business customer reports the purchase to the tax authority through e-reporting instead.

This is the part most non-French exporters get wrong. If you are a Dutch, German, or Belgian business without a French establishment invoicing a French buyer, the e-invoicing obligation does not apply to your invoice. Your buyer reports the purchase through e-reporting.

If your French buyer still asks for a structured invoice, the Peppol bridge is the path of least resistance for most non-French SMEs. Several approved platforms accept Peppol BIS Billing 3.0 invoices. The sending business does not need to integrate with the French stack directly: it sends to its own Peppol Access Point, the buyer’s platform receives, the buyer is reachable.

The timeline in one column

• 16 January 2026: the tax authority publishes its first 101 approved platforms.
• 1 September 2026: receive obligation for every business established in France. Send and e-reporting obligation for large and mid-sized companies (mid-sized: fewer than 5,000 people and turnover of at most €1.5 billion or a balance sheet of at most €2 billion).
• 1 September 2027: send and e-reporting obligation extends to small and micro companies (small: fewer than 250 people and turnover of at most €50 million or a balance sheet of at most €43 million).
• E-reporting (transaction data for B2C and cross-border trade) follows the same calendar as issuing: 1 September 2026 for large and mid-sized companies, 1 September 2027 for small and micro companies.

The receive obligation on 1 September 2026 is the date that catches the most French businesses off-guard. Even a small firm not yet required to send electronically is required to receive electronically from its French suppliers. An invoice from a foreign supplier without a French establishment stays outside that obligation; the French buyer reports it through e-reporting.

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 approved platform 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. Ask whether they want your invoices in a structured format. Without a French establishment your invoices stay outside the e-invoicing obligation, but a structured invoice fits the buyer’s own approved platform.

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.
3. Confirm with your Peppol provider that it can reach French approved platforms. Peppol is the cheapest route for SMEs; a direct connection to an approved platform 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 for suppliers established in Belgium 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 approved platform handles: 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 platform does it. You do have to make sure your accounting system reflects the statuses your platform reports.

The takeaway

France in September 2026 is not Belgium with a French accent. The architecture is different, the mandatory routing through an approved platform is unique to France, and the receive obligation lands on every business established in France 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.