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Poland Announces Staggered Mandate for National E-Invoicing System (KSeF)

The Polish government has released draft legislation for the mandatory implementation of the KSeF e-invoicing system. The rollout is scheduled for 2026 and will follow a phased approach based on company size and turnover, primarily affecting entities resident in Poland.

Poland Announces Staggered Mandate for National E-Invoicing System (KSeF)

Key Takeaways from the Polish Draft

1. Scope of the Mandate

  • Applicability: Mandatory only for entrepreneurs resident in Poland. Those merely registered for VAT purposes are currently excluded.
  • Transaction Types: Covers both taxable and tax-exempt transactions.

2. Phased Rollout Schedule (2026)

  • February 1, 2026: Large companies (turnover >200 million PLN / approx. €57.7M).
  • April 1, 2026: Most other entrepreneurs.
  • July 31, 2026: Deadline for invoices issued by cash registers and mandatory KSeF number display for payments.
  • September 30, 2026: Micro-entrepreneurs (with specific turnover and invoice value limits).

3. Notable Innovations

  • Attachments: Unlike many other systems, the draft allows for e-invoices to include attachments, which then become an integral part of the official digital record.
  • System Integration: Mandatory use of the national KSeF platform for all invoice issuance.