e-deklaracje
e-declaration systems allowing to file tax returns electronically.

Gazeta Prawna
Dziennik Gazeta Prawna’s online service.

Internetowy System Informacji Prawnej
Internet database of legal documents issued by the Sejm.

IPS
Online tax declaration and other forms.

Izba Skarbowa w Warszawie
Website of the Tax Chamber in Warsaw.

Klasyfikacje
Polish Classification of Products and Services (PKWiU), Common Procurement Vocabulary (CPV), Polish Classification of Activity (PKD), Classification of Fixed Assets (KST) classifications.

Kursy walut NBP
Current table of exchange rates published by NBP.

Ministerstwo Finansów - podatki
Tax information section of the Ministry of Finance website - forms, information brochures, taxpayer’s diary.

Signform
Database of current forms available as .pdf, .doc and .xls.

Wskaźniki
A page containing a synthesis of hints and tips essential to running a business (delegations, taxes, insurance, interest, benefits and others).

Wzory umów
contracts templates - personal affairs, automotive, social and health insurance, real estate, employment, taxes.

ZUS
Social security office official web page.

Gołaszewska A., Oleszczyk J., Adwokaci s.c.
Legal chambers of solicitors Agnieszka Gołaszewska and Jacek Oleszczyk

Excel
MSEXcel users web page

G7 Media
Soon to be heared.