# French E-Invoicing: Hidden Costs & How to Choose a Platform

> Uncover the hidden costs of French e-invoicing platforms (PA/PDP). Learn how to compare pricing models, understand reversibility, and avoid common pitfalls.

Published: 2026-09-10

Canonical: https://sygnet.ai/blog/french-e-invoicing-hidden-costs-how-to-choose-a-platform

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## Key takeaways

- Since 1 September 2026, every company subject to VAT in France must be able to **receive** its invoices via an approved platform (PA, formerly PDP), and large companies and mid-sized firms (ETI) must also issue invoices through this channel ([Yooz](https://www.getyooz.com/fr/blog/facture-electronique-obligation)).
- The advertised price is almost never the real price: the line items that blow the budget are setup fees (€200 to €500 for a small business), legally compliant archiving billed as an add-on, multi-entity modules, and training ([comparatif-facture-electronique.fr](https://www.comparatif-facture-electronique.fr/cout-facturation-electronique-entreprise-2026/), [guide-plateforme-agreee.fr](https://guide-plateforme-agreee.fr/facturation-electronique-guide-complet-2026/)).
- The DGFiP (French tax authority) specifications require **reversibility**: your platform must return your data in a usable format ([Les Experts Comptables](https://les-experts-comptables.fr/ressources/changer-de-plateforme-agreee/)). This does not release you from the contract's duration clauses and exit fees.
- The real risk of disruption is not legal but operational: your PA is your reference point in the directory of the Public Invoicing Portal (PPF), so a poorly sequenced switch cuts off receipt of your suppliers' invoices ([weinvoice](https://weinvoice.fr/blog/changer-de-plateforme-agreee)).

## What is a PDP (approved platform) and why can't you do without one?

A PDP, Plateforme de Dématérialisation Partenaire (Partner Dematerialization Platform), renamed **approved platform (PA)** by the administration since 8 January 2026, is a private operator registered by the DGFiP, the only type of entity authorized to transmit and receive your B2B electronic invoices and to send your e-reporting data to the tax authorities.

You cannot bypass it: the scope of the PPF has been refocused since October 2024 on its role as the central directory of recipients and the hub for e-reporting data; it no longer serves as a platform for direct exchange between companies. In other words, there is no longer a free public option for issuing and receiving invoices.

> You cannot bypass it: the scope of the PPF has been refocused since October 2024 on its role as the central directory of recipients and the hub for e-reporting data; it no longer serves as a platform for direct exchange between companies.

The market is well supplied: as of 13 August 2026, 166 approved platforms were registered. Be careful with marketing terminology: a **dematerialization operator (OD)** is not a PA. ODs can only act as service providers upstream or downstream of the invoice and must connect to a PA. If you are sold a "partial approval," ask for the legal name of the platform that actually carries out the regulatory transmission, as it is often a third-party PA, billed separately.

For details on the regulatory role, see the entry on [PDP – partner dematerialization platform](https://sygnet.ai/glossary/pdp-plateforme-dematerialisation-partenaire).

## What are the hidden fees of a PDP?

Hidden fees are concentrated in four areas: onboarding, archiving, scope (entities, users, connectors), and exit. Initial integration fees, extra charges for multi-entity management, and archiving billed as an add-on are the three classics.

Market benchmarks: €20 to €40/month for a small business, plus €200 to €500 in setup fees, and €500 to €3,000/month for large accounts with ERP integration, on top of which comes €10,000 to €30,000 in change management costs. In practice, prices range from €0.30 to more than €2 per invoice depending on the platform, volume, and features.

A comparison service that analyzed 148 platforms concluded that the main hidden cost lies in training and integrations, not in the subscription fee.

**Worked example.** A 40-person accounting firm receives 300 supplier invoices per month for itself and also manages flows for its clients. At €0.30 per invoice, transmission costs €1,080/year. But if legally compliant archiving is an optional extra (€5 to €30/month for 10,000 stored invoices), if each client file counts as a billable entity, and if the connector to the production tool is a fixed-price development project, the actual bill can triple. The right approach is to add up the subscription, onboarding fees, and any software update charges to get the real annual budget.

## How do you compare pricing models without getting it wrong?

Compare a total cost of ownership over 3 years, not a monthly price. Platforms operate on three models: free, fixed monthly subscription, or pricing based on invoice volume processed.

| Model | What you actually pay | Main pitfall | Suitable profile |
|---|---|---|---|
| Free | €0 for the basic flow | Free access is often conditional on a subscription to management software, or capped in volume | Freelancers, fewer than 30 invoices/month |
| Fixed subscription | Monthly flat fee + setup | Hidden volume tiers, add-ons (archiving, multi-entity) | SMEs with stable volume |
| Pay per invoice | €0.30 to more than €2/invoice | Both issuing and receiving billed, rejected invoices counted | Irregular volumes |
| ERP suite / enterprise | €500 to €3,000/month + €10,000-30,000 project cost | Very high exit cost, technical lock-in | Mid-sized firms, large accounts |

Two questions to put in writing before signing: is a rejected invoice that is resent counted once or twice? And does access to my archives remain included after termination? Also test the support desk: send an email to support before signing; a response within 48 hours is acceptable, beyond that be wary.

## Can you change PDP, and are you really free to leave?

Yes, switching is possible at any time, but two distinct regimes coexist: the regulatory one and the contractual one. You are free to register your new PA in the PPF directory at any time, but you are not released from the clauses of your contract with the outgoing PA.

On the regulatory side, protection exists: the DGFiP specifications require reversibility, meaning the return of your data in a usable format, and a new PA must provide migration documentation free of charge. On the contractual side, however, notice periods, minimum term commitments, exit costs, export formats, reversibility assistance, and subsequent access to data must all be checked separately.

The warning sign at signing: demand the ability to export your data and terminate without penalty; a contract that locks you in for 24 months should be refused. Negotiate the reversibility clause **before** signing, not when you leave. Negotiating reversibility upfront guarantees you can retrieve your data if you switch later.

## How do you migrate without cutting off invoice receipt?

The order of operations matters more than the operations themselves. Your PA is not just a piece of software: it is your reference point in the PPF directory and the custodian of your legal archives.

The cautious sequence:

1. **Verify the target platform's registration.** Only a registered platform can link you to the directory.
2. **Export before switching.** Take stock of what needs to migrate (customer and supplier contacts, invoice history, legal archives) and export everything from the old PA before initiating the switch.
3. **Test a sample.** Test a sample of exported archives before the handover.
4. **Republish directory entries.** The new PA publishes your reference entries in the PPF directory: this is the pivotal moment when incoming invoices start being routed to the new platform.
5. **Only terminate after seeing a real invoice go through.** Never move to the next step before witnessing an actual invoice pass through the new platform.
6. **Recover any forgotten settings.** Check that your e-reporting settings and accounting connectors have carried over, as they are not always transferred automatically.

Good news for migrations mid-fiscal-year: for twelve months, the former PA remains required to return historical invoicing data, transmit the status of invoices still in progress, and guarantee access to invoices already issued.

## What about invoices that don't arrive via the PDP?

A PA only handles the structured flow; everything else keeps arriving by email, paper, or supplier portal, and remains your responsibility. This is the point that pricing grids ignore.

Two flows persist after September 2026. First, suppliers not yet subject to the issuing obligation: between September 2026 and August 2027, two regimes coexist, large companies and mid-sized firms issue via e-invoicing, while SMEs and small businesses can still use paper or PDF. Second, documents outside the scope: expense reports, supporting documents, foreign invoices, B2C invoices. The obligation only covers transactions between VAT-registered companies and those with the public sector.

Budget, therefore, for automated reading capacity for these PDFs and scans, separate from the PA subscription. This is the role of [Intelligent Document Processing](https://sygnet.ai/glossary/intelligent-document-processing), the field in which Sygnet operates, upstream or downstream of the approved platform. For managing the dual flow during the transition period, see the dedicated analysis on [PDF invoices after September 2026](https://sygnet.ai/blog/pdf-invoices-after-sept-2026-validity-dual-flow-management).

## FAQ

### What are the penalties if I am not connected to an approved platform?

The penalties provided for are €15 per untransmitted invoice, capped at €15,000 per year, and €250 per missing or incorrect e-reporting transmission, also capped at €15,000 per year. On top of this comes an indirect cost that is often heavier: a supplier whose invoice cannot be routed to you will not be paid on time, which damages the business relationship and can trigger contractual late-payment penalties.

### Does free e-invoicing really exist?

Yes, for small volumes. Several free approved platforms cover 100% of the need for fewer than 30 invoices per month. But check the conditions for free access: volume cap, deadline, required status, as free access is often conditional on a subscription to management software. For a firm or a multi-entity SME, the free offer is almost always insufficient.

### Can I use two different approved platforms?

Yes. A company can use one PA for receiving and another for issuing, or different PAs for different subsidiaries or flows. This is a useful safeguard against lock-in: you can test a second provider on a limited scope before switching your entire operation over. The cost is double administration (two contracts, two sets of connectors, two sets of archives) and more complex oversight of rejections.

### Do you need to notify the DGFiP when changing platforms?

No. You do not write to the tax authorities: the change is reflected in the central directory managed by the PPF, which tells your suppliers which platform to send your invoices to. In practice, it is your new platform that publishes your reference entries. Updating the directory, however, has no bearing on the validity or termination of contracts signed with the platforms: termination remains a separate contractual matter to be handled in parallel.