The official Polish currency is the złoty (literally, ‘golden’), abbreviated to zł and pronounced zwo-ti. It is divided into 100 groszy, which are abbreviated to gr. Banknotes come in denominations of 10zł, 20zł, 50zł, 100zł and 200zł, and coins in 1gr, 2gr, 5gr, 10gr, 20gr and 50gr, and 1zł, 2zł and 5zł. It’s a stable currency that has held its own with respect to the euro and US dollar in recent years.
Try to keep some small-denomination notes for shops, cafes and restaurants – getting change for the 100zł notes that ATMs often spit out can be a problem.
When to tip Customary in restaurants and at service establishments, such as hairdressers; optional everywhere else.
Restaurants At smaller establishments and for smaller tabs, round the bill to the nearest 5zł or 10zł increment. Otherwise, 10% is standard.
Taxis No need to tip, though you may want to round up the fare to reward good service.