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We check structure, the PESEL date and check digits. NIP remainder ten is invalid; REGON-14 also requires a valid nine-digit part. We do not verify the existence of a person or company in a register.

These figures follow Polish tax and social-security law. They do not apply to any other country. Amounts are in Polish złoty (PLN).
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PESEL: wagi 1-3-7-9-1-3-7-9-1-3 i kontrola daty zakodowanej w numerzeNIP: wagi 6-5-7-2-3-4-5-6-7, suma modulo 11REGON: osobne wagi dla 9 i 14 cyfr, suma modulo 11Worked example
Worked example using the form's default values.
We check structure, the PESEL date and check digits. NIP remainder ten is invalid; REGON-14 also requires a valid nine-digit part. We do not verify the existence of a person or company in a register.
Use the same amount, horizon, dates and cost basis. Check whether the result is monthly or annual and what it includes. The comparison does not select offers or guarantee their availability.
A condition needed for the ratio or goal is missing. Correct the indicated value; do not treat this state as a favorable zero result.
Sources, retrieval dates and the next review are in the methodology. You enter prices, returns and forecasts. The calculator does not fetch offers or confirm individual eligibility.
Identyfikator jest sprawdzany lokalnie. Nie zapisujemy go w projekcie, historii, scenariuszu, adresie ani analityce. Poprawna suma kontrolna nie potwierdza istnienia numeru.
We check structure, the PESEL date and check digits. NIP remainder ten is invalid; REGON-14 also requires a valid nine-digit part. We do not verify the existence of a person or company in a register.