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New official guidelines available for Belgium B2B e-invoicing mandate

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With less than 18 months remaining before the B2B e-invoicing mandate takes effect, the Belgian government has released a detailed FAQ to guide companies through this critical transition.

Recent updates have featured similar news: a new version of the PPF technical specifications in France and updated specifications for XRechnung and XBestellung in Germany. These resources aim at providing comprehensive information to companies nationwide regarding the upcoming e-invoicing mandates.

Now it’s Belgium’s turn, with the Federal Public Service Finance releasing guidelines to help companies better understand the B2B e-invoicing mandate, which is scheduled to take effect on January 1, 2026.

These guidelines are presented in a FAQ section, providing useful information on the following topics:

  • What is an electronic invoice?
  • Cases where e-invoicing becomes mandatory
  • International invoicing
  • Technical rules
  • Summary of the e-invoicing mandates in Belgium
  • Additional information (Peppol, EN16931, resources, …)

Direct link to the guidelines: French version / Dutch version / English version

Visit our Belgium Country Profile to learn more, to have access to more resources and to stay updated about e-invoicing compliance in this country.

Country Profile

Country regulation overview, resources, technical details, timeline, and more

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Billit is a Belgian ISO 27001 certified e-invoicing platform that simplifies financial administration for businesses of all sizes. Founded in 2014, it automates invoicing, expense management, and bank integration, helping users save time and reduce errors.

Billit is a certified Peppol Access Point, EU certified open banking (AISP) provider enabling secure e-invoicing across Europe and beyond. The platform currently supports 120,000 users (Q1 2025) who process more than 2 million invoices monthly. It also offers a free portal for accountants, enhancing collaboration with clients.

With offices in Ghent, Brussels, Sint-Niklaas, and Hamburg, Billit is a trusted partner in digital transformation.

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Country Profile

Country regulation overview, resources, technical details, timeline, and more

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