E-invoicing: a legal requirement that impacts your entire organisation

Stay efficient and compliant with the new e-invoicing requirement

Let’s plan your transition together

From 1 January 2026, e-invoicing will become mandatory for B2B transactions in Belgium. This means businesses will need to move away from paper and PDF invoices and switch to structured digital invoices, usually in UBL format, exchanged via the secure Peppol network. 

Most standard accounting software can process these files automatically, with minimal manual input. This speeds up invoicing, reduces costs, and cuts down on administrative tasks. 

But the impact goes beyond IT. Your tax, legal, and accounting processes will also be affected. 

For many businesses, the transition is more complex than it seems - especially for large and international companies. The sooner you start preparing, the lower the risk of operational or compliance issues. 

Why e-invoicing?

Switching to e-invoicing isn’t just about compliance. It also brings a range of tangible benefits: 

  • Faster payments: e-invoices are processed more quickly, reducing turnaround times and improving cash flow. 
  • Fewer errors, better compliance: automated validation lowers the risk of mistakes and ensures accurate tax reporting. 
  • Lower administrative costs: no more printing, postage, or paper invoices - leading to significant cost savings. 
  • A positive environmental impact: less paper means a smaller ecological footprint. 

The impact of e-invoicing

Many businesses underestimate the complexity of this transition. E-invoicing doesn’t just affect invoicing - it has a knock-on effect across multiple areas of your organisation:  

  • Tax & Legal: new compliance requirements and tax reporting obligations require careful preparation.  
  • Accounting: accounting processes and controls must be adjusted to handle electronic invoicing correctly. 
  • IT & Finance: your invoicing systems need to be Peppol-compatible and securely integrated into your existing infrastructure. 

Preparing for the future of invoicing

Mandatory e-invoicing is a step forward in digitalising your business, but it also comes with challenges. 

Firstly, your invoicing system needs to do more than simply meet today’s requirements - it should be future-proof. That means selecting software that’s compatible with Peppol, the secure network for exchanging e-invoices. Not all accounting software is fully adapted yet, so you may need to work with a hybrid system in the meantime. 

Data standardisation is also key. E-invoices must meet specific data standards to integrate seamlessly across different systems. This means ensuring that details like invoice numbers, amounts, tax information, and general terms are correctly structured in a digital format. 

And while 2026 may seem far away, implementation takes time. It’s not just about IT - your tax, legal, and accounting processes need to be adjusted to remain compliant. 

Getting started

A successful transition starts with a well-thought-out approach. 

step 1
Assess your current invoicing process
What software does your organisation use? How well does it support e-invoicing?
step 2
Choose the right solution
compare providers and ensure their systems are Peppol-ready.
step 3
Implement strong security measures
E-invoicing systems must comply with data protection regulations and guarantee the confidentiality, integrity, and availability of invoice data.
step 4
Update internal processes
Invoice approval, acceptance, and payment workflows will also need to be digitalised.
step 5
Test and train
Roll out e-invoicing in stages and make sure your teams are fully prepared.

Ready to make the switch? We’re here to help 

E-invoicing isn’t just a legal requirement - it’s an opportunity to optimise your financial processes. Have questions about the best approach for your business? Our experts are here to guide you every step of the way.