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Top tools
PESEL Number Checker
Enter a PESEL number to extract the birth date, gender, and verify the check digit. Works as both a PESEL checker and validator.
IBAN Checker: Verify a Polish Bank Account Number
Free IBAN checker and validator for Polish bank accounts. Verifies checksum, identifies the bank by sort code, and shows detailed error reports.
Mikrorachunek Generator
Generate your individual Polish tax account number (mikrorachunek podatkowy) from a PESEL or NIP.
Top articles
Poland Business Registry Search: How to Look Up a Company by NIP
Look up any Polish company by its NIP number. Search CEIDG, KRS, and the VAT white list to verify businesses and confirm VAT status.
7 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.
7 min readWhat Is a Mikrorachunek? Poland's Individual Tax Payment Account Explained
A mikrorachunek is your personal tax payment account in Poland. Learn how the 26-digit number works, which taxes it covers, and how to verify one.
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