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Top tools
REGON Number Generator
Generate valid 9-digit and 14-digit Polish REGON numbers with correct check digits for testing.
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Generate your individual Polish tax account number (mikrorachunek podatkowy) from a PESEL or NIP.
NIP Generator
Generate valid Polish NIP (VAT / tax ID) numbers with correct checksums for software 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 Get a PESEL for Your Child Born Abroad or Newborn in Poland
How to get a PESEL for your child born outside Poland or as a newborn. Required documents, which office to visit, and what to expect.
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Learn when you're legally required to share your PESEL number in Poland and when you can refuse under RODO (GDPR). A foreigner's guide to data protection.
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