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.

Write to us

Services

Directions

Write to us

Send request

Key implications:

Contact a lawyer for further infromation