KSeF and Italian SdI system: comparing mandatory e-Invoicing models in Poland and Italy
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Date11 Jun 2026
KSeF and Italian SdI system comparison is one of the most important reference points for businesses seeking to understand the direction of mandatory e-invoicing in Europe. Poland is implementing the...
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Invoice visualization in the National e-Invoicing System (KSeF) in Poland – when can a PDF create VAT risk?
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Date08 Jun 2026
Invoice visualization in the National e-Invoicing System (KSeF) in Poland is primarily intended to make the data stored in an XML file easier to read. It is not a separate...
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National e-Invoicing System (KSeF) in Poland vs. e-Invoicing in Germany: key differences and challenges for companies
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Date18 May 2026
KSeF vs e-invoicing in Germany is an important topic for companies operating across borders, corporate groups, subsidiaries and businesses working with contractors in both Poland and Germany. Both countries are...
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Corrective invoices in the National e-Invoicing System (KSeF) in Poland – what will change in VAT corrections?
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Date13 May 2026
Corrective invoices in the National e-Invoicing System (KSeF) in Poland will change the way businesses issue, deliver and account for VAT corrections. Once a taxpayer becomes subject to mandatory structured...
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Self-billing in the National e-Invoicing System in Poland (KSeF) and VAT deduction
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Date24 Apr 2026
Self-billing in the National e-Invoicing System in Poland (KSeF) remains permissible, but after the individual tax ruling issued by the Director of the National Revenue Information (KIS) on 27 February...
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National e-Invoicing System in Poland (KSeF) and scam invoices: why document control is essential
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Date17 Apr 2026
National e-Invoicing System in Poland (KSeF) is changing how invoices are issued, received and circulated within a company, but it does not remove the need to verify them on the...
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How to log in to the National e-Invoicing System (KSeF) in Poland and avoid access issues? A guide for entrepreneurs
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Date17 Mar 2026
In 2026, the National e-Invoicing System (KSeF) in Poland became an important part of day-to-day business operations. However, obtaining access to the system is only the first step. Businesses still...
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Accounting Poland for international companies: Polish National Accounting Standards (KSR) vs IFRS and US GAAP
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Date16 Mar 2026
In international organisations, accounting Poland often means working in two frameworks at the same time: local statutory financial reporting in Poland and group reporting for consolidation purposes. The real challenge...
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The Ministry of Finance regulation extends the JPK_CIT submission deadline in Poland – what changes in 2026?
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Date23 Feb 2026
On 19 February 2026, Poland published a regulation of the Minister of Finance and Economy (dated 16 February 2026) extending the deadline for submitting accounting books for corporate income tax...
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The National e-Invoicing System (KSeF) in Poland and the new JPK_VAT structure from 1 February 2026
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Date16 Feb 2026
From 1 February 2026, a new version of the Polish VAT reporting structure applies: JPK_V7M(3) for monthly VAT settlements and JPK_V7K(3) for quarterly settlements. The change applies under Polish tax...
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