The introduction of the National e-Invoice System (KSeF) represents the most fundamental change in the national economy since the introduction of the Standard Audit File (SAF), digitizing a key business process. From April 1, 2026, this obligation will apply to a wide range of businesses. Although the reform is national in nature, its implementation raises significant questions and potential challenges for companies operating internationally. Understanding the new […]

The National System for E-Invoicing (KSeF) is an inevitable change in the Polish tax landscape, soon to become one of the most important obligations for every entrepreneur. The amendment to the VAT Act introduces not only a universal e-invoicing obligation but also a strict sanction regime for taxpayers who fail to comply with the new regulations. KSeF Implementation Schedule: Knowing the exact KSeF implementation dates is of strategic importance. […]