The currency in Gibraltar is pounds sterling.
So, getting your travel money ready should be pretty easy! You’ll need to make sure your pounds and pence aren’t Scottish or Northern Irish though, as unfortunately they’re not accepted in Gibraltar - and you won’t want anything to get in the way of that duty-free shopping.
If you come home with any notes or coins issued in Gibraltar, you won’t be able to spend them in the UK. They’re used alongside Bank of England currency on the Rock so either use them up or exchange them before you fly back.
Thinking of taking a trip across the border into Spain? You’ll need to order some euros for your spends. Get them before you go and you won’t have to think about sorting it when you’re in holiday mode!