From 2026, most businesses selling to consumers in Poland must use cash registers, with exemptions mainly based on a PLN 20,000 turnover threshold, specific exempt industries, or payment methods such as bank transfers and mail order sales. The rules apply through 2027 and exclude B2B sales, real estate, and depreciable fixed assets from the turnover test. As we enter 2026, new tax regulations are... Read more

Although KSeF 2.0 is primarily a B2B system, it introduces major changes for B2C retailers by requiring all VAT taxpayers to receive invoices via KSeF from February 2026 and progressively mandating invoice issuance through KSeF for retailers from April 2026. From 1 January 2027, cash register receipts with a buyer’s NIP will be prohibited, making KSeF the mandatory channel for such consumer invoic... Read more

Poland’s Ministry of Finance has launched public consultations on draft tax clarifications defining when a permanent establishment in Poland is sufficiently involved in transactions to trigger e-invoicing obligations under the KSeF system. Read more

Poland’s Ministry of Finance plans targeted VAT Act amendments effective July 1, 2026, introducing stricter rules for handling fiscal devices. Businesses will be required to deregister and return all unused cash registers to manufacturers for disposal, with penalties for non-compliance to prevent misuse of outdated equipment. The Ministry of Finance has announced a focused set of amendments to the... Read more

Poland will temporarily allow simplified invoices issued from cash registers—including receipts with a buyer’s NIP—to remain outside the mandatory KSeF system until 31 December 2026. Starting 1 January 2027, all simplified invoices must be issued through KSeF, ending the option to generate them directly from cash registers. The introduction of the National e-Invoicing System (KSeF) in Poland is co... Read more

Pro forma invoices will continue to be allowed as non-tax, purely informational business documents, but they will not be issued or processed in KSeF because they are not recognized as invoices under the VAT Act. From 2026 onwards, only legally defined VAT invoices will pass through KSeF, while pro formas may still be shared externally (PDF, email, systems) as offer or preview documents. For many y... Read more

S4F backoffice installer is intended for users who are installing the software for the first time. Please make sure to obtain latest version of installer and to apply all subsequent patches that are released subsequently. This package contains instruction, release notes, changelog and software packages required for deployment of this software component. This version of the Backoffice installer supports the following countries: Austria, Bulgaria, Croatia, France, Italy, Poland, Portugal, Romania, Slovakia and Slovenia. Read more