The mandate

Since 1 January 2026 Belgian VAT-registered businesses must exchange structured e-invoices via the Peppol network (Peppol BIS) for domestic B2B transactions. B2C invoices are out of scope.

To support adoption, a temporary 120% cost deduction applies to e-invoicing software subscriptions for small businesses and the self-employed (financial years up to end 2027).

The federal government also publishes an official list of compliant software solutions.

Official sources