The introduction of the National e-Invoicing System (KSeF) presents significant challenges, especially for businesses rather than accountants. It will take several months for everyone to adapt to the new system and its...

The National e-Invoicing System (KSeF) has launched, and changes have been made to JPK_VAT. Initially, only the largest companies (with gross sales over 200 million PLN in 2024) are required to issue invoices via KSeF;...

Poland officially launched the National e-Invoice System (KSeF 2.0) on February 1st, operating efficiently with no technical issues. Over 50,000 invoices have been processed and about 320,000 users have logged in since...

Larger companies are using their stronger market position to force smaller partners to adopt the National e-Invoicing System (KSeF) earlier. Payment for goods or services is being made conditional on issuing structured...

In 2026, businesses with monthly sales documented by invoices not exceeding 10,000 PLN (gross) are exempt from mandatory KSeF e-invoicing and can issue invoices in traditional formats. The 10,000 PLN limit does not...

The launch of the National e-Invoicing System (KSeF) faced immediate technical issues, with users unable to log in due to a failure of the Trusted Profile service. From February 1, the largest VAT taxpayers are required...

Frequently asked questions about KSeF 2.0 KSeF is a modern tool for issuing, receiving, and storing structured invoices. In connection with its implementation, we have prepared a set of frequently asked questions...

The National e-Invoice System (KSeF) will become mandatory for Polish companies starting February 1, 2026, after multiple delays. Initially, in 2026, it will apply to companies with annual turnover exceeding 200 million...

The National e-Invoice System (KSeF 2.0) will launch on February 1, 2026, and is ready for operation. The system has passed tests confirming its security, functionality, and resilience to heavy loads. Full support is...

From February 1, it is possible to issue and receive invoices in the National e-Invoice System (KSeF). The mandatory implementation of KSeF concerns only the issuing of invoices in this system. Clients should know which...

The National e-Invoice System (KSeF 2.0) is ready for launch on February 1, 2026, with all functional, technical, and security requirements met. A dedicated 24/7 helpline and technical support are available for users...

Only production environment keys, certificates, and tokens from KSeF should be used in the production environment. Using test environment elements in production will cause technical errors. Production and test...

Press briefings addressed misinformation about the National e-Invoice System (KSeF) and aimed to provide accurate information. From February 1, 2026, the largest companies must issue invoices via KSeF; smaller companies...

In 2026, businesses with monthly sales documented by invoices not exceeding 10,000 PLN (gross) are exempt from mandatory KSeF e-invoicing and can issue invoices in traditional formats. The 10,000 PLN limit does not...

If a structured invoice in KSeF is issued with an incorrect buyer NIP, a “zeroing” corrective invoice must be issued (structured or offline), then a new invoice with the correct NIP. From February 1, 2026...

From February 1, 2026, certain transactions will not require structured invoices in the KSeF system, as specified in a new regulation by the Minister of Finance and Economy. The regulation lists cases of properly...

By February 1, 2026, suppliers must agree with their contractors on how invoices issued in KSeF will be made available. Article 106gb(4) of the VAT Act requires that the method of providing invoices to recipients...