Sep 29, 2026 · 0:58 · Short
How Does a Credit Card Actually Work?
You tap your card for €50 – approved. But who actually pays the shop? Robo buys new headphones and we look behind the payment: the request to your bank, the fraud and credit check, the money that moves later – and the €50 you now owe until you pay it back.
A credit card lets you pay later – not avoid paying.
Example: an everyday purchase with a credit card that allows part payment. Whether you avoid interest depends on your card's terms and any interest-free (grace) period. The bill date shown is an example. Card, bank and app shown are fictional.
Sources & further reading (4)
- Visa – How card payments are processed
https://corporate.visa.com/en/solutions/acceptance/payments.html - Visa – Interchange fees (merchant service charge)
https://www.visa.co.uk/about-visa/visa-in-europe/fees-and-interchange.html - CFPB – What is a grace period for a credit card?
https://www.consumerfinance.gov/ask-cfpb/what-is-a-grace-period-for-a-credit-card-en-47/ - CFPB – How does my credit card company calculate the interest I owe?
https://www.consumerfinance.gov/ask-cfpb/how-does-my-credit-card-company-calculate-the-amount-of-interest-i-owe-en-51/