How to Prepare Your Business for Belgium’s E-invoicing Mandate

Belgium’s B2B e-invoicing requirement went into effect on January 1, 2026. However, the government imposed a grace period lasting through March 2026.

When the grace period ends, the Belgian government will begin penalizing businesses that do not comply with the e-invoicing requirements. To avoid fines, it is important to make sure all systems are fully compliant and prepared for use.

In this article, we discuss Belgium’s current e-invoicing requirements, what the end of the grace period means for your business, and the next steps for Belgium’s mandate.

Let’s jump in.

What are Belgium’s E-invoicing Requirements?

E-invoicing became mandatory for all VAT-registered Belgian businesses on January 1, 2026. Companies impacted by this legislation must use the Peppol network to transmit B2B e-invoices.

Peppol is an open exchange network created to facilitate the efficient and secure transmission of electronic business documents.

Peppol is based on a 4 corner model. In this framework, the e-invoice sender, receiver, and their respective access points each act as a corner. E-invoices are directly transmitted from the sender to the receiver via their access points. This method is highly secure: all Peppol Access Points must comply with certain data security requirements to become certified.

Belgium’s e-invoicing system will initially be based on this Peppol 4 corner model. It will change to a 5 corner model after the implementation of Belgium’s e-reporting requirement in 2028, which we will cover later. The only difference between the 4 and 5 corner models is the addition of a tax authority to the system. In the 5 corner model, the sender’s access point will submit the e-invoice to the relevant tax authority for validation.

The mandate serves multiple purposes. It will cut down on VAT fraud, thanks to increased transparency throughout the transaction process, while modernizing Belgium’s invoice and tax systems. With e-invoicing, businesses will be more efficient and their invoicing workflows will become internationally compatible. Additionally, Belgium’s upcoming e-invoicing mandate will prepare the country for VAT in the Digital Age (ViDA), the EU’s initiative to digitize the VAT system.

Starting e-invoicing may require a company to change their accounts payable and tax reporting systems. To offset some of the costs associated with e-invoicing implementation, the government will offer a temporary increase in deductible expenses. Until 2027, businesses can benefit from a tax deduction of 120% on their e-invoicing expenses.

If businesses do not comply with Belgium’s upcoming mandate, they will be fined. The scale ranges from €1,500 for the first offense, €3,000 for the second offense, and €5,000 for the third offense.

Read more: Download our free E-invoicing in Belgium factsheet

Belgium’s Grace Period

Belgium implemented a 3 month grace period after the e-invoicing mandate went live. During this grace period, the government will not penalize businesses actively implementing e-invoicing.

The grace period protects organizations acting in good faith that may be facing technical issues or other implementation errors.

Because the government does not plan to extend the grace period, it is important for businesses to ensure all e-invoicing systems are currently functional and compliant with Belgium’s requirements.

The Next Step: Real-Time Reporting

Starting January 2028, Belgium will require businesses to begin e-reporting tax information to the Belgian tax administration. This requirement will apply to domestic B2B transactions. It allows businesses to communicate directly and securely with Belgium’s tax authority. The increase in transparency will reduce tax evasion and improve data collection.

E-reporting will replace Belgium’s annual VAT listing. More details will be released by the Belgian government as the deadline approaches.

How Storecove Can Support E-invoicing in Belgium

Storecove is here to help, whether you’re connecting to Peppol for the first time or adjusting your current systems to comply with Belgium’s mandate.

As a certified Peppol Access Point, we are prepared to help your business integrate with Peppol. Our global API makes connecting easy: just connect to our software once, and you’ll instantly be able to send and receive e-invoices across the world.

When you send e-invoices with our API, we take care of formatting, validation, and delivery. Our software can easily fit into your organization’s current invoicing flow, allowing you to integrate quickly and meet regulatory requirements without complex onboarding. All you need to do is create an invoice. We take care of the rest, including compliance.

We update our API to account for any change in e-invoicing regulations or standards, including eB2B, to help your company stay compliant. Keeping up with new mandates on your own is time-consuming and difficult, but our automatic updates make global compliance seamless.

The Peppol network is constantly expanding, with new members joining daily and many mandates planned for the next few years. Get ahead of compliance issues in Belgium and beyond by connecting to Peppol now and keeping your document standards up to date.

Get Started

Wondering whether our e-invoicing solution is a fit for your company? Request a free test account to gain access to a sandbox environment for 30 days. You’ll be able to experiment in a sandbox environment, giving you the chance to explore our intuitive interface and experience the benefits firsthand.

To learn more about our e-invoicing solution, book a demo with our team. Feel free to contact us with any questions. We’re here to help.

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