Whether you can take a rental car across a border depends on the rental company's terms, not on EU law alone.
- Your Europe advises telling the company in advance which countries you plan to visit.
- Within the EU and some neighbouring countries, the number plate serves as proof of insurance under the green card system, but outside that area you may need a green card or border insurance.
- Driving into a country your contract does not allow can leave you without cover.
A road trip from Slovenia to Croatia, a day in Switzerland from Milan, a ferry from Spain to Morocco. Borders in Europe are easy to cross, but a rental car carries its own rules. Whether you may take the car abroad is decided by the rental contract, and the answer can differ per company and per country. Getting it wrong can cost you your insurance cover, so it is worth checking before you book.
Who decides where you may drive
Your Europe explains that rental companies are free to set their own prices and conditions, and advises telling the company in advance if you plan to drive to another country. Most contracts sort countries into groups:
| Group | Typical rule |
|---|---|
| Neighbouring EU countries | Allowed, sometimes with a fee |
| Other EU and EEA countries | Allowed with notice, often with a fee |
| Non-EU countries in Europe | Restricted to some car classes, or only with approval and extra paperwork |
| Some countries | Not allowed at all |
Premium cars and vans often have stricter rules than small cars. A one-way rental that ends in another country is a separate product with its own, usually higher, fee.
The cross-border fee
Many companies charge a fixed fee or a daily amount for taking the car abroad. That fee should appear before you sign. ECC-Net advises reading the contract terms carefully before signing and asking about anything unclear. If a cross-border fee appears on your bill that you were not told about, ask where it was in your terms, and object in writing if it was not. Our terms check helps you find such clauses before you book.
Insurance across borders: the green card system
Every rental car has third-party liability insurance. Across borders, the green card system makes sure that cover is recognised. The UK Motor Insurers' Bureau explains that the system covers 47 countries. Within an area of free circulation, which includes the European Economic Area plus Andorra, Bosnia and Herzegovina, Montenegro, Serbia and Switzerland, the number plate itself counts as proof of insurance.
Outside that area, you need a green card certificate or border insurance. The Insurance Bureau of Bosnia and Herzegovina, for example, accepts the plate of cars from 38 countries, including Croatia, Germany, France, Italy and the UK, but requires a green card for cars from countries such as Albania, North Macedonia, Moldova, Turkey and Ukraine.
What happens to the damage waiver and theft cover
Third-party liability is one thing. Your collision damage waiver and theft protection are contract terms of the rental company, and they often only apply in the countries the contract allows. If you drive into an excluded country and the car is damaged or stolen there, you may be liable for the full value, not just the excess. That is the most serious risk of ignoring the cross-border rules. Our explainer on CDW, excess and super cover shows how the layers fit together.
Country rules you take with you
Each country you enter has its own traffic rules. Two are often overlooked with a rental car:
- Vignettes and tolls. Countries such as Austria and Switzerland require a vignette for motorways. A car rented in Germany will not have an Austrian vignette. See our guide on tolls and vignettes in Europe.
- Winter equipment. Your Europe notes that winter tyre rules differ per country. A car rented in a country without winter rules may not be equipped for one with them.
Plan the countries before booking
List every country on your route, including those you only pass through. Check the rental company's cross-border rules for your car class.
Declare the trip at the desk
Tell the desk which countries you will visit, and make sure they appear on the contract. Ask for any green card or permit in writing.
Keep the paperwork in the car
Carry the rental contract, the registration document and any green card. Police at a border may ask for proof that you are allowed to take the car out of the country.
If something goes wrong abroad
After an accident in another country, follow local rules, call the police if needed, and fill in the European Accident Statement. Inform the rental company straight away. Our guide on an accident with a rental car abroad covers the steps. For a dispute about cross-border fees or a damage claim afterwards, your European Consumer Centre can help if the company is in another EU country, Iceland or Norway.
A short example
You rent a compact car in Zagreb for a week and plan two days in Bosnia and Herzegovina. The contract lists Bosnia among the countries allowed with a 40 euro cross-border fee. You declare the trip, pay the fee, and the desk notes Bosnia on the contract. At the border, the Croatian plate is accepted as proof of insurance, and the contract shows you are allowed to take the car out of Croatia.
Frequently asked questions
Is a cross-border fee allowed?
Rental companies are free to set their prices and conditions, so a cross-border fee is common. It should be clear before you sign. If it only appears at the desk or on your bill, ask where it was stated in the terms you accepted.
Do I need a green card in another EU country?
Usually not. Within the area of free circulation, which covers the EEA and countries such as Switzerland, Serbia, Montenegro, Andorra and Bosnia and Herzegovina, the number plate is accepted as proof of insurance, according to the UK Motor Insurers' Bureau.
What happens if I drive into a country my contract excludes?
Your cover, including theft protection and the damage waiver, may not apply there, and the company may charge a penalty. In case of damage or theft, you could be liable for the full amount.