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Poland will mandate e-invoicing in 2026 through the National e-Invoicing System (KSeF), requiring all taxpayers to issue and receive invoices electronically, strengthening tax transparency and supporting digital transformation goals.
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On September 19, 2025, the Ministry of Finance updated the KSeF 2.0 portal, releasing a four-part manual, tailored materials for user groups, expanded Q&A, FA(3) schema brochure, and a webinar series.
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The Ministry also announced the API connection to the KSeF 2.0 test environment will launch on September 30, 2025, enabling businesses and developers to prepare for mandatory e-invoicing requirements.
Source: SNI
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