The KSeF checklist for foreign businesses
Everything you need to know about Poland's e-invoicing mandate — in one document. Timeline, 5-step preparation plan, penalties with VAT Act citations.
Full KSeF rollout timeline (February 2026 → April 2026 → January 2027)
5 preparation steps (NIP & token, software, sandbox tests, GDPR, team training)
Penalties with exact VAT Act references (art. 106ni, art. 88 §3a)
When KSeF does NOT apply to you (OSS, foreign NIP, B2C exemption)
Bonus: free Fakturium account (Free plan, no credit card)
Checklist is grounded in the Polish VAT Act, KKS and Ministry of Finance interpretations. No invented citations — every claim links to a real legal source.
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Every fact links to the Polish VAT Act, KKS or a published KIS interpretation.