[malermeister]

Your credit card provides you with credit, as the name implies.

It's not an asset in itself.

[GoldenMonkey]

My bank credit card is indeed tied to real assets... am i supposed to declare all my assets?

[Grimburger]

Your assets remain at home. If you start making $20,000 purchases or taking out that much from ATM's on holiday then yes it will be noted by the authorities in their system and treated just the same as money in a bag at the airport.