As the February 2026 e-invoicing deadline approaches, Poland’s Ministry of Finance is accelerating preparations. With updates to the JPK_VAT structure, the launch of the “Wednesdays with KSeF” training program, and the release of new KSeF 2.0 resources, companies now have the tools to prepare for full compliance.
Poland is entering the final stretch of its journey toward mandatory electronic invoicing. The National e-Invoicing System, known as Krajowy System e-Faktur (KSeF), will become obligatory from 1 February 2026 for large taxpayers with annual sales exceeding 200 million PLN, and from 1 April 2026 for all remaining entrepreneurs.
To ensure a smooth transition, the Ministry of Finance has introduced several key initiatives that bring technical, educational, and operational clarity to businesses across the country.
In recent months, the Ministry has taken concrete steps to help companies get ready. Among these, three stand out:
- The publication of an updated JPK_VAT reporting structure
- The launch of the “Wednesdays with KSeF” training sessions
- A major update to the official KSeF 2.0 online portal
Together, these efforts mark a coordinated national push to ensure that businesses are not only aware of the upcoming changes but also capable of implementing them efficiently.
Aligning VAT reporting with KSeF
On 17 September 2025, the Ministry of Finance released a draft of the new JPK_VAT with declaration (JPK_VAT z deklaracją) structure. This update, which will take effect on the same day KSeF becomes mandatory, aligns VAT reporting directly with the e-invoicing system.
The newly introduced JPK_V7M(3) and JPK_V7K(3) versions integrate technical adaptations for structured e-invoicing, ensuring consistency between transaction data and tax declarations. They also include updates linked to Poland’s deposit-refund system. These drafts are already available for testing, giving both IT providers and accounting departments the opportunity to prepare their systems well in advance.
This alignment between KSeF and JPK_VAT reflects a broader government effort to create a unified reporting ecosystem. For more background on the roadmap and timing, read our article Poland updates its e-invoicing roadmap with KSeF 2.0.
Training initiative: “Wednesdays with KSeF”
To complement the technical updates, the Ministry of Finance launched a hands-on educational program called “Wednesdays with KSeF”. From 24 September to mid-December 2025, weekly sessions are being held both online and in person across Poland. These events are designed to prepare businesses for daily KSeF operations, including authentication, user permissions, invoice submission, and handling invoices during system downtime.
By offering this mix of digital and in-person support, the Ministry aims to make the transition as practical as possible. Each session focuses on real-world use cases, helping accountants, entrepreneurs, and finance teams gain confidence before the system becomes mandatory.
The initiative shows that the government is enforcing compliance while also supporting adoption. For context on the confirmed rollout path, see Poland confirms KSeF mandate and 2.0 switch.
New KSeF 2.0 resources for every user
Alongside the training, the official KSeF 2.0 website has been significantly expanded. The Ministry has published new materials, including:
- A detailed four-part KSeF 2.0 Manual explaining how to issue, receive, and archive structured e-invoices
- An updated FAQ section answering common technical and procedural questions
- The final FA(3) schema and an Information Brochure outlining the e-invoice structure and correct implementation
These updates are tailored for different user groups such as small taxpayers, accountants, service providers, and IT developers. This makes the KSeF documentation accessible to both technical and non-technical audiences.
With these tools, businesses can test integrations, configure systems, and train staff ahead of time. For a deeper overview of what is included, visit our article New manuals, FAQs, and roadmap published for KSeF 2.0.
From preparation to implementation
Taken together, these developments show that Poland is moving from planning to execution. By updating the JPK_VAT structure, investing in nationwide training, and expanding KSeF 2.0 resources, the Ministry of Finance gives companies a clear path toward compliance.
The message is simple: the time to prepare is now. Businesses that act early benefit from a smoother onboarding process and avoid the risks of last-minute adjustments. With all eyes on February 2026, Poland’s e-invoicing landscape is taking full shape — structured and standardised for the digital age.
Key takeaways
- Mandatory e-invoicing (KSeF) starts 1 February 2026 for large taxpayers and 1 April 2026 for all others
- The new JPK_VAT structure ensures alignment between VAT reporting and e-invoicing
- The “Wednesdays with KSeF” program offers nationwide, practical training on using the system
- The KSeF 2.0 portal now includes comprehensive manuals, FAQs, and schemas
- Businesses are urged to prepare systems, processes, and teams ahead of the 2026 mandate
