While Amsterdam uses the Euro, in 2026 you actually do not need to carry physical cash for the vast majority of your trip. The Netherlands is one of the most "cashless" societies in Europe; almost every shop, from high-end boutiques to the smallest "Haring" stand or public toilet, accepts (and often prefers) contactless payment via debit card, credit card, or Apple/Google Pay. In fact, many "Albert Heijn" supermarkets and cafes are strictly "Pin Only" (cards only). However, it is a "peer-to-peer" best practice to carry about €20-€50 in cash just as a backup for small locker rentals at museums or if a card machine fails. When traveling from the UK, ensure your card doesn't charge foreign transaction fees. If you do need cash, avoid the "Travelex" booths at Schiphol Airport or Centraal Station, as they have poor rates; instead, use a local bank ATM (Geldmaat) for the best conversion. For most travelers, your smartphone will be your primary wallet throughout the city.