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Go to the Polish government site for tax: https://www.podatki.gov.pl/;
Navigate to VAT > JPK_VAT z deklaracją or “JPK_VAT with Declaration” > Bezpłatne narzędzia or “Free Tools” > Klient JPK Web;
Click “Dodaj pliki” or Add Files;
Browse and select the file to add.
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Click the menu button below to open the details.
Click the Pobierz txt button to download the file in .txt format
Check the details of the error pertaining to the line.
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