Invoice mistakenly submitted to the National System of e-Invoices (KSeF) in Poland – must it be corrected to zero?
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Date21 Aug 2026
An invoice mistakenly submitted to the National System of e-Invoices (KSeF) in Poland after it had already been correctly issued and delivered to the buyer outside the system does not...
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E-invoicing in Poland and the UK: comparing KSeF with UK rules
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Date21 Jul 2026
E-invoicing in Poland and the UK follows two different regulatory timelines. Poland introduced the mandatory National e-Invoicing System (KSeF) in stages from 1 February and 1 April 2026. In the...
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Accounting for LLC in Poland – obligations, rules and practical challenges
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Date13 Jul 2026
Accounting for LLC in Poland differs significantly from accounting for a sole proprietorship or a business using simplified records. This is mainly because a Polish limited liability company, commonly referred...
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Split payment mechanism and KSeF invoices in Poland – what changes for businesses?
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Date07 Jul 2026
The split payment mechanism and KSeF invoices in Poland are becoming an increasingly important practical issue for businesses, accounting departments and finance teams responsible for VAT settlements. Although the split...
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National e-Invoicing System (KSeF) in Poland and VAT deduction – invoices in the system, outside the system and obligations of VAT-exempt taxpayers
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Date19 Jun 2026
The National e-Invoicing System (KSeF) in Poland and VAT deductionis a topic that requires companies to distinguish between several practical scenarios: an invoice issued and received through KSeF, an invoice...
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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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Transport company profitability in Poland: how to improve margins and manage costs
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Date22 May 2026
Transport company profitability in Poland is less and less dependent only on whether a business has a full transport schedule. In practice, what matters much more today is the quality...
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Transport industry in Poland: the key tax and accounting challenges
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Date28 Apr 2026
The transport industry in Poland remains one of the more important segments of the economy. At the same time, it is also one of the areas where the scale of...
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Contractual penalties and tax-deductible costs in Poland – a ruling by the Supreme Administrative Court of Poland (NSA)
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Date14 Apr 2026
Contractual penalties and tax-deductible costs in Poland are an important issue for businesses performing services, deliveries, construction projects and long-term contracts. The latest case law of the Supreme Administrative Court...
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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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