Guides and deep dives on Polish administrative data, demographics, and how to use Poland.gg.
How to get Polish citizenship by descent. Eligibility rules, required documents, application steps, costs, and timelines for ancestry-based claims.
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.
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.
Look up any Polish company by its NIP number. Search CEIDG, KRS, and the VAT white list to verify businesses and confirm VAT status.
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.
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.
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.
Step-by-step guide to paying tax on rental income in Poland: ryczałt rates, registration, monthly payments via mikrorachunek, and PIT-28 filing.
Owe money after filing your PIT in Poland? Learn how to pay a niedopłata step by step, including deadlines, transfer details, and late payment interest.
Step-by-step guide to paying PCC tax after buying a used car in Poland. Covers the 2% rate, 14-day deadline, PCC-3 form, and online payment.
Join our Discord community. Get early access, shape the roadmap, and connect with data people across Poland.
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The longer you stay, the less you pay. 9% off per month, stacking up to 90%. The 100 longest supporters get free access for life.
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Guides and deep dives on Polish administrative data, demographics, and how to use Poland.gg.
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.
Step-by-step guide to blocking your PESEL number via mObywatel, your bank, or in person. Learn what zastrzeżenie PESEL protects and how to reverse it.
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