On November 15, 2025, the Polish Ministry of Finance released the KSeF 2.0 Taxpayer Application demo for testing before its February 1, 2026, launch. Users can issue and manage invoices in a simulated environment.
Ministry of Finance of Poland Launched Demo of KSeF 2.0 Taxpayer Application
Public
Poland
Author: Nikolina Basić
Category:
General information
Views:
606
Content accuracy validation date:
18.11.2025
Content accuracy validation time:
09:30h
On November 15, 2025, the pre-production environment (Demo) of the KSeF 2.0 Taxpayer Application was made available by Polish Ministry of Finance. The demo version allows users to test the new system ahead of its official launch on February 1, 2026.
The pre-production environment enables taxpayers to issue and receive invoices under conditions similar to the upcoming production version. All actions performed in the demo are for testing purposes only and have no legal or tax consequences.
Users can log in with their real credentials (such as Tax Identification Numbers) but must use dummy invoice data. Information entered in the demo will be periodically deleted.
Features Available in Demo:
- The KSeF 2.0 demo application allows users to:
- Issue, receive, and view invoices and corrections in FA(3) format
- Search and download invoices in XML, HTML, or PDF
- Use QR codes for invoice access
- Manage permissions and apply for certificates
- Download official receipt confirmations
- Access invoices issued offline
- Generate and handle tokens (until December 31, 2026)
- Independent Testing Environment
The demo operates separately from the MCU module introduced in November 2025. Certificates and permissions granted in the production environment are not valid in the demo, and vice versa.
Technical support for users is available through the Ministry’s website at ksef.podatki.gov.pl/formularz. The demo application can be accessed directly at: https://ksef.podatki.gov.pl//bezplatne-narzedzia-ksef-20/aplikacja-podatnika-ksef-20-wersja-przedprodukcyjna-demo/
Officials say the demo will help optimize performance and incorporate user feedback before the full rollout in February 2026.
Other news from Poland
New document was uploaded: S4F backoffice installer
Author: Dejan Šijačić
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
Subscribe to get access to the latest news, documents, webinars and educations.
Already subscriber? Login
Poland prepares for Mandatory B2B E-Invoicing with new KSeF Tools- Certificates and Authorizations Module (MCU)
Public
Poland
Author: Nikolina Basić
Poland
Author: Nikolina Basić
Starting February 1, 2026, Poland mandates B2B invoicing via the National e-Invoice System (KSeF). To support this, the Ministry of Finance released key tools, including the MCU for managing access and digital certificates, which are essential for KSeF 2.0 access. Starting February 1, 2026, Poland will require businesses to use the National e-Invoice System (KSeF) for B2B invoicing. To help compan... Read more
E-invoicing in Poland: Ministry of Finance launches demo version of KSeF 2.0 API
Public
Poland
Author: Nikolina Basić
Poland
Author: Nikolina Basić
Poland’s Ministry of Finance has launched the pre-production (Demo) environment for the new KSeF 2.0 API, enabling businesses and software providers to test integrations under real authentication conditions. The demo, accessible at ksef-demo.mf.gov.pl, mirrors live system functionality without legal effects, supporting companies in preparing for mandatory e-invoicing rollout The Ministry of Financ... Read more
Regulation update in Poland: expansion of software-based cash registers
Public
Poland
Author: Nikolina Basić
Poland
Author: Nikolina Basić
Poland has expanded the scope of businesses eligible to use software-based cash registers under amendments effective April 1, 2026. The updated regulation adds sectors such as car washes, automated delivery systems, self-service ticketing, and electronic parking services, further advancing the country’s digital tax infrastructure modernization Poland’s authorities have officially published a... Read more
New SENT system rules in Poland will cover clothing and footwear from March 2026
Public
Poland
Author: Nikolina Basić
Poland
Author: Nikolina Basić
Starting March 17, 2026, Poland’s SENT system—which monitors road and rail transport of goods—will expand to include clothing and footwear. This change comes from a regulation issued by the Minister of Finance and Economy on September 10, 2025. The SENT system will now require reporting for shipments of: Knitted or crocheted clothing (Chapter 61 of CN) over 10 kg Non-knitted clothing (Chapter... Read more
E-invoicing-KSeF 2.0 API Testing begins: the Ministry of Finance opens integration Environment
Public
Poland
Author: Nikolina Basić
Poland
Author: Nikolina Basić
Poland’s Ministry of Finance has opened the integration environment for KSeF 2.0 API testing, allowing software providers to check system compatibility ahead of the mandatory rollout. A detailed user manual and technical support are available, with key milestones leading up to the full production launch on February 1, 2026. On September 30, 2025, the Ministry of Finance of Poland officially launch... Read more