On 11 September 2026, the Dutch government officially mandated B2B e-invoicing for all VAT-registered businesses, effective 1 July 2030 (Rijksoverheid.nl, 11 September 2026). For most IT and finance leaders, four years seems comfortable. For Dutch accounting firms, the reality is more demanding: they must manage their own compliance while simultaneously guiding dozens, sometimes hundreds, of clients toward this new standard.
Context: a decision long expected, a familiar model
The Dutch government chose the decentralised Peppol model (four-corner network, EN16931 formats: UBL or CII), covering domestic and intra-EU B2B transactions. Real-time digital reporting to the Belastingdienst (Dutch Tax Authority) will be required from 1 July 2031. Only businesses registered under the KOR scheme (turnover under €20,000 per year) are exempt.
A public consultation is scheduled for autumn 2026. The draft legislation is expected to be submitted to Parliament (Tweede Kamer) in summer 2027.
Belgium switched over in January 2026, with penalties active since 1 April 2026 (€1,500 per non-compliant invoice for a first offence, €5,000 for repeat violations). The Netherlands arrives as the third wave, after Belgium and Germany, with four years to draw lessons from their experience.
Impact for accounting firms
A double compliance burden
Dutch accounting firms are not mere observers. They are VAT-registered themselves and will need to issue their own invoices via Peppol from 1 July 2030. At the same time, their role as intermediaries puts them on the front line for supporting their client portfolio through the transition.
Pieter Zwartkruis, VAT consultant at Fiscount, highlights an underappreciated tension: accounting software vendors will charge for Peppol integration, and the question of who absorbs these adaptation costs — the firm or its clients — remains unresolved (Accountancy Vanmorgen, 6 October 2026). Firms that start negotiating this pricing question in 2027 will be far better positioned than those who face it as an emergency in 2029.
Four action items to start now
The Belgian experience showed that Peppol compliance cannot be completed in a few weeks. For Dutch accounting firms, four concrete steps are essential even before the public consultation opens:
- Map your invoicing flows: identify who sends what, to whom, using which software. A firm managing 150 SME clients potentially has 150 different configurations to qualify and migrate.
- Audit your VAT data quality: structured e-invoicing requires valid VAT numbers, accurate addresses, and compliant product codes (CPV or equivalent). Errors that slide through a PDF will block a Peppol flow.
- Assess your vendors’ roadmaps: AFAS, Exact Online, Twinfield, and Snelstart each operate on their own timeline. Some are already certified Peppol Service Providers (AFAS since its certification for Belgium); others have not yet published a public date. A firm whose primary software has no confirmed Peppol roadmap must ask the question now, not in 2029.
- Handle micro-client edge cases: sole traders and micro-businesses under the KOR exemption are not required to issue structured invoices — but their VAT-registered suppliers and customers will be. Firms managing mixed portfolios (KOR and non-KOR) will need to run two parallel regimes, with the error risk that entails across their management tools.
What to watch
The autumn 2026 public consultation will clarify two critical points for accounting firms: the sanctions regime (modelled on Belgium’s approach or a more progressive rollout?) and whether accounting service providers might qualify as technical intermediaries on the Peppol network. The final choice of network infrastructure (Peppol or EBW, the centralised European alternative) is expected in October 2026 and will determine which software strategy to adopt.
For further reading, see our review of Belgium’s first nine months of mandatory e-invoicing, our analysis of Belgian Peppol penalties active since April 2026, and our coverage of the Dutch public consultation (autumn 2026).
