Cash
The currency in Poland is the Polish Złoty (PLN) 1 PLN = 100 groszy. Coins circulate in denominations of 1 PLN, 2 PLN, 5 PLN and 10, 20 and 50 groszy; banknotes are indenominations of 10, 20, 50, 100, 200 and 500 PLN. In nearly all shops, visa/mastercard debit and credit cards are accepted (currency conversion rates may apply). If you are unsure, confirm with the shopkeepers before you purchase or order items.
Currency Exchange
Currency should be exchanged at a registered exchange point. There are plenty of outlets in tourist-oriented places, including bank branches, ATMs, and specialised kiosks known as "kantors". Note that cash should not be exchanged on the street or with bystanders. The rates offered at the airports are pretty bad.