The German e-invoicing mandate has now reached many businesses. However, as soon as customers or suppliers are located in other EU countries, the exact same uncertainty regularly arises: does the mandate apply there too, and if not, which rules apply instead? This article examines the cross-border aspect of e-invoicing and shows how teams can prepare for it organisationally without being caught off guard by every new country-specific requirement.

Does the German e-invoicing obligation also apply abroad in the EU?

The short answer: not automatically. The German electronic invoicing obligation covers domestic B2B transactions between businesses that are both established in Germany. For an invoice to a customer in France, Poland or Spain, this German rule does not apply directly. Instead, what matters is which regulations apply in the respective recipient country, and these vary considerably in some cases, both in terms of the timetable and the technical requirements.

For a company with multiple European business relationships, this means in practice: It is not enough to align your own processes once with German legal requirements. Every country to which invoices are regularly sent deserves a separate look at the local legislation.

Example France: two stages, a tight schedule

France is a good illustration of just how concrete this audit can be. The B2B e-invoicing obligation there will come into force in two stages. From 1 September 2026, all VAT-registered companies in France must be able to receive electronic invoices, while at the same time the obligation for large and medium-sized enterprises to issue electronic invoices themselves begins. Small and micro-enterprises will follow a year later, from 1 September 2027.

Anyone who regularly delivers from Germany to France is not directly affected by the French obligation itself at first, but should be aware that from this point onwards, their French customer may only accept certain formats or communicate via a certified platform. It is precisely at this point that most delays occur in practice, namely when both parties realise only shortly before the deadline that their systems are incompatible.

A mixed picture in the EU

France is not an isolated case, but is representative of a Europe-wide patchwork of national regulations. Poland has also already launched its mandatory KSeF system, albeit in two stages: since 1 February 2026 the obligation has applied initially to large companies, and since 1 April 2026 to all other domestic businesses. Spain, on the other hand, has not yet brought its B2B obligation into force at the present time. Each country independently determines from when which company size is affected and which technical format applies.

The EU initiative ViDA, VAT in the Digital Age, is intended to align these national isolated solutions in the long term. The mandatory digital reporting obligation for cross-border transactions at EU level is scheduled to take effect from July 2030. Until then, however, companies with European business relationships cannot rely on a single rule, but must monitor the situation in each relevant country individually.

Prepare the team before the deadline looms

Aside from the legal review, internal organisation is the second area where projects frequently stall. Three questions continually crop up in this regard:

The first concerns time

Transitioning to new formats or a new target country can rarely be done on the side; it requires a genuine planning phase in which requirements are clarified, systems are adapted, and tests are carried out before the statutory deadline becomes binding.

The second concerns the training

Anyone who works with invoices in day-to-day business must understand the new formats and the associated verification steps, otherwise the uncertainty will shift directly from the management to the accounts department. A brief, targeted introduction to the most important terms and processes often removes a large part of this anxiety.

The third concerns jurisdiction

An electronic invoice touches IT, accounting and frequently also purchasing at the same time, without it being automatically clear who decides in case of doubt. It is worth clarifying this question in writing even before the first problem arises, so that it does not only have to be answered when an invoice from abroad is rejected and nobody is responsible.

Conclusion

The e-invoicing mandate does not stop at the German border; in a way, that is precisely where it starts to get really complicated. Anyone issuing cross-border invoices should check the rules of the respective destination country at an early stage and prepare their organisation for them in good time, rather than tackling both only when the next deadline is approaching faster than planned.

Arrange a personal consultation