Implementing KSeF represents a fundamental change in document workflow for businesses. Invoices will only be issued in XML format and processed through the Ministry of Finance’s system. Lack of preparation can lead to errors, regulatory penalties, and, in some cases, criminal fiscal liability. It is essential to adapt accounting processes, IT systems, and internal procedures to ensure safe and efficient use of KSeF.
National e-Invoicing System (KSeF)
KSeF will become mandatory soon: from 1 February 2026 for the largest taxpayers, and from 1 April 2026 for most businesses. This is the biggest change in invoicing in years, and proper preparation is key. We help businesses navigate every step of the KSeF transition – from process analysis and procedural adjustments to staff training and ongoing advisory support – ensuring a smooth, risk-free rollout that keeps your business running seamlessly.
How can we help?
Guidance on KSeF implementation
- Workshops and training for finance, accounting, and operational teams;
- Collaboration with IT and accounting software providers to ensure system compatibility;
- Assistance in configuring key functionalities to enable accurate KSeF reporting.
Tailoring to business needs
- Analysis of partner requirements and industry-specific practices;
- Design of invoice workflows including additional data or attachments;
- Support in managing international invoicing processes.
Day-to-day legal and tax advisory
- Monitoring of changes in KSeF and VAT regulations;
- Continuous support in resolving e-invoicing issues;
- Recommendations to ensure IT systems remain compliant with current law.
Selected projects
- Advising Elanda Pharma and Verco on KSeF implementation and providing employee training on KSeF compliance requirements
- Advising Dan Cake on KSeF implementation
- Advising Lumel & Lumel Alucast on reviewing their current invoice approval and issuance system, analysing workflows for domestic and international operations, mapping required changes to ensure KSeF compliance, and delivering staff training on the new regulations
- Advising SuperDrob on KSeF implementation support via a hotline, in collaboration with their IT solutions provider.
