Just as in most other European Union countries, the Portuguese currency is the Euro (€). One euro corresponds to 100 cents. Bills come in 5 euros, 10 euros, 20 euros, 50 euros, 100 euros and 200 euros. A 500 euros bill existed but stopped being produced in 2019. Coins come in 1, 2, 5, 10, 20 and 50 cents and in 1 and 2 euros.
Although cash was king in Lisbon for years, the COVID-19 pandemic accelerated a shift to debit card and mobile/app payments. Below are the modes of payment that you might use when visiting Portugal and Lisbon