How Tax Authorities Gather and Use Data: Inside KAS Analytical Tools and Automated Tax Monitoring

• The National Revenue Administration (KAS) increasingly uses automated analytical systems to monitor and verify taxpayers’ financial activities before any official correspondence.
• KAS gathers data from various sources, including VAT registers (JPK VAT), upcoming CIT and PIT reports, real-time invoice data (KSeF), bank transaction reports (STIR), and other public and digital records.
• Most tax and customs audits now reveal irregularities, with 98% of tax and 94% of customs audits in 2024 finding issues.
• The authorities cross-reference information from multiple sources, often without contacting the taxpayer, to detect inconsistencies and potential fraud.
• Even data shared by taxpayers online, such as on social media or blogs, is used for verification purposes.

Source: mddp.pl

Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.

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