Prepare for Poland’s KSeF e‑Invoicing rollout
Poland has now completed the initial rollout of its mandatory National e‑Invoicing System (KSeF) after several postponements from the original 2024 timeline. Mandatory adoption began on 1 February 2026 for businesses with turnover exceeding PLN 200 million, before expanding to all VAT-registered businesses on 1 April 2026.
What will change in Belgium
- All domestic B2B invoices must be submitted to KSeF, validated by the tax authority, and assigned a KSeF reference number before becoming legally valid.
- PDF and paper invoices are no longer valid for domestic B2B transactions covered by the mandate, with structured XML invoices becoming the standard.
- 2026 serves as a transition year with limited enforcement, while full penalties and compliance controls are expected from 1 January 2027.
The mandate forms part of Poland’s broader strategy to improve VAT transparency, reduce fraud, and move towards real-time digital tax reporting.
Why B2BE?
B2BE brings proven experience from global e-invoicing mandates — supporting businesses across multiple countries, formats, and regulatory models. We help organisations:
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Ensure compliance with evolving local and international requirements
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Manage complex, multi-channel environments (EDI, PDF, portals, print)
Rather than treating e-invoicing as a local project, B2BE enables a scalable, future-ready approach — designed to adapt as Norwegian requirements evolve.
Understand what your organisation needs to do now — and what can wait.
- Assess how your current e-invoicing workflow is doing
- Identify reporting and compliance gaps in your current processes
- Create a scalable strategy for future requirements