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REGON Number Generator
Generate valid 9-digit and 14-digit Polish REGON numbers with correct check digits for testing.
NIP Generator
Generate valid Polish NIP (VAT / tax ID) numbers with correct checksums for software testing.
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.
Top articles
Which Taxes Are Paid Through a Mikrorachunek in Poland?
PIT, CIT, and VAT go through your mikrorachunek. PCC, property tax, and local fees do not. Here is the full breakdown for taxpayers in Poland.
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What is a NIP number in Poland? Learn how to find your own NIP, check a company's tax ID, and validate any Polish NIP online.
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Look up any Polish company by its NIP number. Search CEIDG, KRS, and the VAT white list to verify businesses and confirm VAT status.
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