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Mikrorachunek Checker
Check whether a mikrorachunek podatkowy number matches the official format and extract the embedded PESEL or NIP.
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Paste any IBAN to identify the bank, branch, and BIC/SWIFT code.
REGON Number Generator
Generate valid 9-digit and 14-digit Polish REGON numbers with correct check digits for testing.
Top articles
How to Get Polish Citizenship by Descent
How to get Polish citizenship by descent. Eligibility rules, required documents, application steps, costs, and timelines for ancestry-based claims.
10 min readHow to Find Your Bank's SWIFT/BIC Code
Find your bank's SWIFT/BIC code in 4 ways — bank app, statement, online lookup, or extract it from any IBAN. Includes codes for Revolut, Wise, N26, PayPal & more.
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Step-by-step guide to paying tax on rental income in Poland: ryczałt rates, registration, monthly payments via mikrorachunek, and PIT-28 filing.
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