17 days
Poland: JPK_V7M monthly VAT return and payment due by the 25th
Next: 25 September 2026then 25 October 2026, 25 November 2026
VAT-registered companies in Poland on the standard monthly settlement; small taxpayers (mali podatnicy, turnover up to EUR 2 million including VAT) may opt into quarterly JPK_V7K filing instead.