Poland's National e-Invoice System (KSeF) is now mandatory: since 1 February 2026 for the largest taxpayers and since 1 April 2026 for everyone else. The smallest issuers join on 1 January 2027. Inratio gives your foreign-owned Polish entity full KSeF compliance plus an English-language workflow layer.
Incoming KSeF invoices are categorized by cost type, project, responsibility center — based on history. Manual categorization only for new patterns.
Multi-level approval matrix — by amount, by category, by manager. You set thresholds once, Inratio routes invoices automatically. Audit trail for every decision.
Every invoice action (received, categorized, approved, paid) is timestamped and attributed. Ready for Polish tax authority audits.
Unusual amounts, suspicious vendors, duplicate invoices — Inratio flags before approval. Catch fraud and errors before payment.
KSeF (Krajowy System e-Faktur) is Poland's National e-Invoice System. It became mandatory in stages: from 1 February 2026 for taxpayers whose 2024 sales (including VAT) exceeded PLN 200 million, and from 1 April 2026 for all other taxpayers. The smallest issuers — up to PLN 10,000 gross of invoiced sales per month — join on 1 January 2027. Every business has had to receive invoices through KSeF since 1 February 2026. There are no exceptions for foreign-owned companies — if you operate a Polish entity, you must comply. Status as of September 2026; source: ksef.podatki.gov.pl.
Yes. KSeF applies to invoicing within Poland, regardless of where the parent company is located. Your Polish entity (Sp. z o.o., S.A., branch office) has had to receive invoices through KSeF since 1 February 2026 and issue them through KSeF since 1 April 2026 (1 February 2026 for the largest taxpayers).
Inratio connects directly to KSeF for you. You don't need to log into KSeF separately — invoices flow into Inratio automatically, get auto-categorized, routed for approval, and synced back. We can run your accounting or adapt to your existing one — either way, Inratio handles the document workflow layer.
Invoices to foreign business customers are also issued in KSeF. The difference is delivery: a buyer without a seat or fixed establishment in Poland receives the invoice in an agreed way, e.g. as a PDF with a KSeF QR code. Inratio handles both flows in one workflow.
KSeF itself is Polish-only. Inratio adds an English layer on top — invoice categorization, approval workflows, and reports are available in English. The underlying KSeF document remains compliant Polish.
Controlling Pro: 14 days for 0 PLN. No credit card. KSeF setup in 10 minutes.
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