2026: Adaptation to Mandatory Electronic Invoicing

Mandatory e-invoicing in 2026 will mark a turning point in the way companies issue, receive, and manage their invoices. Although many organisations still view this change as a technical or distant matter, adapting will require reviewing not only the software, but also internal processes and the way information is managed.

What changes with mandatory e-invoicing

Mandatory e-invoicing between businesses and professionals represents a significant shift in the way invoices are issued and managed. It is not simply a matter of replacing paper with a digital format, but of integrating the invoice into a system that enables its issuance, transmission, receipt, and retention in accordance with defined requirements.

This change requires companies to review not only the tools they use, but the entire invoicing workflow: from document generation through to archiving and potential correction. The invoice ceases to be a standalone document and becomes part of a structured information system.

Mandatory e-invoicing and VeriFactu are not the same thing

One of the most common misconceptions is treating mandatory e-invoicing and VeriFactu as if they were the same. They are not, even though both changes affect invoicing.

The distinction matters because many companies will need to adapt on two fronts simultaneously:

• Managing electronic invoices in their commercial relationships.
• Adapting their invoicing software to the required technical specifications.

What this means for your company

The first implication is clear: the company must ensure it has the tools to manage electronic invoices correctly while also meeting the technical requirements of the invoicing system.

In practice, it is advisable to review at least the following:

• Whether the software can issue and receive electronic invoices in accordance with applicable requirements.
• Whether the provider clearly distinguishes between e-invoicing and compliance with invoicing system requirements.
• How invoices are generated, validated, and recorded on a day-to-day basis.
• How errors, corrections, and incidents are handled.
• The extent of manual intervention in the process.

In many companies, the problem will not lie in the tool, but in how it is used.

Practical impact

Mandatory e-invoicing is not purely a technical change. It also has a direct impact on internal organisation.

On one hand, it requires a thorough review of the invoicing workflow from start to finish. On the other, it makes visible the errors that could previously be resolved informally or manually.

Impact on daily operations

Data quality becomes critical. If the company works with incomplete information, poorly defined processes, or poorly integrated tools, adaptation will be more complex.

Furthermore, there is less room to operate with unstructured procedures. Invoicing demands greater coherence and consistency throughout the entire process.

Impact on internal control and accountability

It will also be necessary to define responsibilities more clearly: who validates the invoice, who corrects errors, and who ensures its proper retention.

In many organisations, these functions are not formally assigned. The new environment makes it necessary to establish them.

Errors to avoid

One of the most frequent mistakes is assuming that changing software resolves everything. That is not always the case.

Other common errors include:

• Selecting a tool without understanding which obligation it actually covers.
• Assuming that "electronic invoice" automatically implies technical compliance.
• Retaining manual processes without reviewing their impact.
• Deferring adaptation until the last moment.

These errors do not disappear with regulatory change; on the contrary, they tend to become more visible.

What to review and address

The most prudent approach is to manage adaptation in an orderly manner, reviewing three dimensions: tool, process, and organisation.

Review the current software

It is worth confirming exactly what the provider covers and whether the system meets the company's actual needs.

Analyse the actual invoicing process

Reviewing the tool alone is not enough. It is necessary to analyse how invoices are issued, validated, corrected, and retained in practice.

Coordinate internal teams and advisory support

Administration, finance, IT, and advisors must have a shared understanding of the change to avoid partial or inconsistent decisions.

Professional perspective

Mandatory e-invoicing should not be treated as a mere digital formality. For many companies, it will be an opportunity to review processes, clarify responsibilities, and reduce reliance on manual practices.

Companies that act early will be able to make more informed decisions. Those that delay will likely arrive with less time and greater operational pressure.

Conclusion

2026 does not introduce a single change, but a new way of understanding invoicing. Mandatory e-invoicing requires reviewing not only the format, but also the way the company manages its information.

Preparing in advance allows companies to adapt their systems, streamline processes, and reduce risks. In this context, acting early is not a conservative choice — it is a strategic one.

At Navarro, we understand that changes of this kind are not resolved by technology alone. They require analysing how the new obligations fit into the company's actual operations and what needs to be reviewed internally.

If your company needs to assess how to approach mandatory e-invoicing and its impact on billing, please contact our team using the form below.