- Mandatory structured e-invoicing for domestic B2B in Belgium starts 1 January 2026, with a Q1 2026 grace period for good-faith implementation issues.
- The grace period only covers breaches specific to the new e-invoicing requirement, not traditional invoicing errors, and businesses must continue invoicing by alternative means if needed.
- Companies must provide evidence of good-faith readiness, such as contracts, test transmissions, or vendor communications.
- Structured e-invoices must be system-to-system, using EN 16931/Peppol BIS; PDFs by email do not qualify.
- From April 2026, penalties for non-compliance range from €1,500 to €5,000 per violation, and supply-chain readiness and documented interim processes are essential.
Source: rtcsuite.com
Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.
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