Important sites
Ministry of Finance. You may find here current tax forms, the tax system in Poland, explanations provided by the Minister of Finance, laws and regulations.
Zakład Ubezpieczeń Społecznych (Social Insurance Company). Includes the rules on filling in the ZUS documents, current indicators, legal acts.
Urząd Skarbowy w Krakowie (Tax Office in Kraków). Includes interpretations of tax law, subsidiary tax bodies, contact details to Tax Offices.

Publications on law and economy. Include financial advice, calculators, current indicators, information about trainings.
National Labor Inspectorate. The website contains information on labor law and health and safety at work.
Central Statistics Office.
National Bank of Poland.
Ministry of Economics, Labor and Social Policy.
Polish Agency for Enterprise Development.
Website on the Polish law.
Małopolska Agencja Rozwoju Regionalnego S.A. (Lesser Poland Regional Development Bureau).