Tax Authority
Federale Overheidsdienst Financien / Service Publique Federale FINANCES.
e-Invoicing in Belgium
Characteristics of the electronic invoice in Belgium
The use of electronic invoices in Belgium was adopted in 2013, at which time the government declared e-Invoices had the same validity as paper invoices.
In the public sector, it is mandatory for all federal and central administrations to receive e-Invoices. This obligation applies to suppliers of such public entities in several regions (Brussels, Flanders, Wallonia). Now, the obligation to issue e-Invoices has been extended to all suppliers of public administrations.
The proposed law for B2B electronic invoicing in Belgium has been approved by the Belgian Parliament. It will come into effect on January 1, 2026, for all businesses and will mandate both sending and receiving electronic invoices.
Obligation
The electronic invoice is mandatory for B2G transactions with the central public administrations and the federal public administrations.
In the B2B environment, mandatory B2B electronic invoicing comes into effect in January 2026.
Format
Peppol BIS 3.0
Digital Signature
Not mandatory.
Archiving
7 years.
Links of Interest
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Common questions
How can I send invoices to public administrations in Belgium?
Electronic invoices issued to the public sector can be sent following the PEPPOL model. The federal government has a central reception platform called MERCURIUS connected to the PEPPOL network. All the public entities in the country -centralized and decentralized- can us this platform. However, they may also choose to have a direct connection with PEPPOL.
Is it mandatory to issue electronic invoices to public administrations in Belgium?
Currently, it is only mandatory for all public administrations and their suppliers in Flanders and Brussels.
Related resources
Implementation of e-Invoicing around the world
The technical and legal requirements for e-Invoicing are different in each country. If you want to know the details and tax obligations of any particular country, just click on the map or choose a country from the dropdown list.
Upcoming Deadlines in Belgium
Stay ahead of the key dates on entry into force of tax and e-invoicing obligations around the world.
Related news about e-invoices in Belgium
Poland: New Mandatory Date for B2B Electronic Invoicing
The Polish government has confirmed the timeline for KSeF e-Invoicing as of Februrary 2026 for large taxpayers
Germany: Current Status of B2B E-Invoicing
Germany's upper house, the Bundesrat, has passed the law that includes mandatory B2B e-invoicing in Germany by 2027
Electronic Invoicing Becomes Mandatory in Belgium starting January 2026
Belgium to introduce mandatory B2B electronic invoicing starting January 1, 2026
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