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The e-invoice in Europe

Belgium

 Belgium has long had a B2G requirement, implemented in stages across the country's regions. On 1 January 2026, the next step was taken with the introduction of a legal requirement to send and receive structured e-invoices for transactions between VAT-registered companies in Belgium (B2B). The process is based on Peppol. From 1 January 2028, Belgium will move forward with mandatory e-reporting to the tax authorities — making it the first country to legislate the requirement that will apply to all cross-border transactions within the EU from 1 July 2030. 

The facts

Digital developments are moving fast and are being accelerated by the ViDA reform, which will make e-invoicing mandatory for all cross-border transactions within the EU from July 2030.
This guide presents the domestic situation regarding e-invoicing in each country.

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B2G

The requirement to send e-invoices to public authorities in Belgium has been in practice since 2019, but became a statutory provision for suppliers as of March 2024. Federal authorities receive via the Mercurius platform linked to Peppol.

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B2B/B2C

 Mandatory e-invoicing for domestic B2B transactions from 1 January 2026. Applies to all transactions between Belgian VAT-registered companies, local subsidiaries, and foreign companies with a fixed establishment in Belgium. The reform is accompanied by government support measures. Small businesses and sole traders are entitled to tax deductions for costs related to e-invoicing software. The next reform follows on 1 January 2028, when mandatory electronic reporting to the tax authorities comes into force. 

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FORMAT

EN16931 compliant invoices, in practice Peppol BIS Billing. Delivery via the Peppol network.

Keeping up with Europe

The invoicing landscape in Europe is changing. New e-invoicing laws are being introduced, VAT reporting is moving to real-time, invoice formats are being redesigned to meet European standards and so on. Inexchange helps your business stay up to date and enables you to conduct transactions across our continent easily and securely.

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