KSeF Mandatory for All Taxpayers
As of today, the obligation to issue structured invoices via the National e-Invoicing System (KSeF) has become mandatory for almost all VAT taxpayers in Poland.
This marks a fundamental shift in invoicing practices and affects all businesses operating in Poland.
Key implications:
- All invoices must now be issued in structured (XML) format via KSeF
- Traditional PDF/paper invoices are no longer compliant for B2B transactions
- ERP and accounting systems must be fully integrated with KSeF
- New rules apply to invoice issuance, delivery, and archiving
What businesses should do:
- Ensure full technical readiness and system integration
- Verify internal invoicing procedures and workflows
- Train finance and accounting teams
- Review contracts (e.g. invoicing clauses, acceptance rules)
Non-compliance may result in penalties and operational disruptions.
If you need support with implementation, compliance or reviewing your processes — feel free to reach out.
Author: Aleksander Skirpan.
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