Debit cards have largely replaced cash for everyday spending in Switzerland (Maestro, V PAY, Debit Mastercard), Germany (girocard, V PAY), France (Carte Bancaire, Visa Debit) and Italy (Bancomat, Visa Debit). When you tap, dip or swipe at a merchant, the issuer instantly checks your balance, debits the account and authorises the merchant — typically settling the same day.
The main advantage of a debit card over credit is that you can only spend what you have, which makes overspending and revolving debt impossible. The downside is weaker buyer protection: chargeback rights exist but are tighter than on credit cards, and a stolen debit-card number lets fraudsters drain your account directly while you wait for a refund. For online shopping and travel, many users prefer the layered protection of a credit card.
Debit cards are also indispensable for cash withdrawal — most ATMs are free at your own bank and charge CHF 2–5 elsewhere. Always check your card's daily limits (in Switzerland typically CHF 5,000 spending and CHF 2,000 cash) and use the mobile app to enable or block contactless, online and foreign-currency use as needed.
A customer pays CHF 87.50 at Coop with a Debit Mastercard. The terminal queries her PostFinance account, finds the balance, debits the amount and authorises the merchant — total elapsed time about two seconds. The transaction appears in her e-banking instantly.