Holidaymakers from the UK heading to Spain may have to prove they have around £85 to spend per day of their trip.
As reported by the Daily Express, travellers may also be asked to show a number of other documents.
The UK Foreign Office is reported to have said: "At Spanish border control, you may need to show a return or onward ticket; show you have enough money for your stay; show proof of accommodation for your stay, for example, a hotel booking confirmation, proof of address if visiting your own property (eg second home), or an invitation from your host or proof of their address if staying with a third party, friends or family.