The following may affect the rental charges:

• a novice driver’s extra charge or usage by another driver;
• when the vehicle is not returned to the rental office from where it was originally collected;
• if the vehicle is returned outside regular opening hours;
• a separate child seat or some other extras required for the vehicle;
• crossing a national border;
• if the vehicle is returned with an empty fuel tank, the rental company may charge you a price considerably higher that you would have had to pay in a regular filling station;
• if the car has been issued with traffic receipts or parking tickets or has suffered from damages while being in your possession;
• in some cases, the allowed mileage is restricted and you are asked to pay extra for exceeding the limit on mileage.

All the information is from the Estonian Consumer advice portal: http://www.consumer.ee/en

Don’t forget to read about other useful tips when renting a car.

• Car rent in Europe
• Booking a rental car over the Internet
• Be extra careful when entering into the contract!
• Upon collecting the rental car
• What should you consider when returning the vehicle?
• How to proceed in the case of an accident?