General Terms and Conditions when renting a car in Portugal
Driver must be 23 years old or older. Must have held a full valid driving license for more than two years.
Car rental companies may require that the driver's license is of an international standard which is covered by UK driving licenses. Additionally if you pay the rental charge by credit or debit card then the name on the card must be the same as the name on the hire car reservation.
When renting the vehicle you may have to pay a deposit by way of an authorized charge on your credit or debit card. If the vehicle is returned without damage then the charge to your credit or debit card is cancelled. If the full insurance offer is taken up then there will be no issues with deposits or with damage.