PEPPOL
What is Peppol?
Peppol (Pan-European Public Procurement OnLine) is a European, secure network that enables companies and governments to exchange electronic business documents—such as invoices—in a structured, secure, and fast manner. Peppol uses fixed standards (such as UBL and Peppol BIS 3.0) so that invoices can be automatically processed by accounting software, without manual work or error-prone handling.
What does the new obligation entail?
From January 1, 2026:
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Every Belgian VAT-liable company must submit its B2B invoices electronically via the Peppol network.
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A regular PDF via email will no longer qualify as a legally valid invoice. This also applies to companies that invoice only occasionally or operate as a side business.
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Receiving companies must also be able to receive e-invoices via Peppol. Even if a company only needs to receive invoices, it must be correctly registered on the Peppol network.
Who is subject to the obligation?
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All Belgian VAT-liable companies, regardless of size, number of invoices per year, or legal form (including non-profits with a VAT number and patrimonial companies).
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Both suppliers and customers must be ready for the Peppol system.
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The obligation does not apply to outgoing invoices for purely private customers, but these companies must still be able to receive Peppol invoices from suppliers.
Practical implications
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Invoicing software must support Peppol; many Belgian accounting programs already offer this compatibility.
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Invoices are processed automatically, faster, and more accurately, promoting error reduction and efficiency.
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Companies that do not comply risk administrative fines from the first violation.
HOW TO USE PEPPOL?
PEPPOL
Rens Accountants works with invoicing software that supports Peppol. Below are the 4 main invoicing software packages we collaborate with. For each software, there is also a short summary of the benefits as well as which type of company the programs best suit. Each software focuses on smooth collaboration with the accountant and simple digital administration for entrepreneurs, with emphasis on automation, time savings, and Peppol compatibility. The choice mainly depends on how far you want to go with automation, bank integrations, and the type of invoicing or integrations you prefer.
softwares supporting peppol at Rens
Clearfacts
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Automates the entire pre-accounting process, from document submission to processing.
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AI-powered recognition automatically converts submitted documents into digital data for your accounting.
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Fast document sharing between entrepreneur and accountant (upload, email, scan, app).
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Real-time dashboard for insights into key figures and reports.
Okioki
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Automatic collection of invoices and documents from mailboxes, supplier portals, and the Peppol network.
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Bank and credit card integration, automatic matching of transactions to invoices, eliminating manual work.
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Real-time checks and reminders for missing documents, proactively guiding the entrepreneur.
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Seamless integration with your existing accounting package, including CODA files for banks.
Billit
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Full automation of traditional administrative tasks: sending, following up, and paying invoices.
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User-friendly interface, ideal for entrepreneurs without prior accounting knowledge.
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Integrates with more than 30 accounting packages and offers automatic payment follow-up (data stream).
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Central accountant portal for overview and archiving, search functions, and personalization options.
Bill-to-box
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Simple digital management of all documents and invoices in one central place.
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Online archive is accessible everywhere, documents are easy to find (e.g., for warranties).
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Invoicing tool to quickly create and send sales invoices.
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Automation of submission: customers and suppliers can directly upload or send invoices to Billtobox.