Renting a Car in Spain: Insurance, Excess and Deposit Before You Hit the Road

Every car rental in Spain legally includes third-party liability insurance, which covers damage caused to others but never damage to the rental car itself. Almost every rental also bundles in a basic damage waiver — the CDW (Collision Damage Waiver) — which doesn't remove your financial liability after a scrape but caps it at an amount called the excess.

This base contract also carries exclusions that rarely surface before you sign: windscreen, tyres, wheels and the underbody are very often left out of the standard CDW, even though these are exactly the parts most likely to take a hit on the small mountain roads of the Picos de Europa or the unpaved tracks of the Andalusian backcountry. Theft, for its part, usually requires a separate option.

Regardless of the insurance you choose, every rental company blocks a deposit on the main driver's international credit card — a debit or prepaid card is refused or heavily restricted at almost every agency. Expect somewhere between €500 and €2,500 blocked depending on the vehicle category; the sum isn't charged, but it does eat into your card's available limit for the whole trip.

The excess itself — what you're actually on the hook for after damage — most often sits between €1,000 and €2,500 for a city car or compact SUV rented with basic insurance. That's the figure rarely highlighted in the eye-catching daily rate on comparison sites, and it's worth asking for explicitly before booking.

Spain remains one of the two or three most visited countries in the world, and that volume of visitors shows up in the road-accident statistics too. A study by José I. Castillo-Manzano, Mercedes Castro-Nuño, Lourdes López-Valpuesta and Florencia V. Vassallo, published in 2020 in Current Issues in Tourism, analysed accident data across every Spanish region between 2000 and 2015 using negative binomial regression. Its finding: the accident rate involving foreign drivers is significantly higher than that of residents, leading the authors to recommend that tourist road safety be built into public policy (study available via Google Scholar: scholar.google.com/scholar?q=Castillo-Manzano+assessment+road+traffic+accidents+Spain+role+tourism).

Nothing alarming for a well-prepared road trip — Spain's road network remains among the best maintained in Europe — but one more reason not to rely on the GPS alone on small mountain roads (the passes of the Aragonese Pyrenees, the hairpins of the Picos de Europa) and to respect speed limits that are sometimes stricter than expected through villages.

For a driver from France or any other EU country, a national licence held for at least a year is enough, with no international permit required. Non-EU travellers — including the UK since Brexit, the US, Canada and Australia — must instead present an International Driving Permit (IDP) alongside their national licence; it's cheap and quick to obtain at home, and it removes any argument in the event of a check or an accident.

The most common age threshold among rental companies is 21, with a licence held for a year, and an almost universal young-driver surcharge below 25. That surcharge is added on top of the quoted price and is worth asking about at the quote stage rather than discovering at the counter.

Spain has two types of fast road: autovías (prefix A-), which are free, and autopistas (prefix AP-), which charge a toll — though many of the latter have become free since 2021, and navigation apps like Waze flag this in real time. The result: most of a Spanish road trip, including long hauls between Andalusia and the north of the country, can be driven without passing a single toll booth.

The point worth watching closely concerns city centres. Since 2023, towns of more than 50,000 residents must have a low-emission zone (ZBE), and both Madrid and Barcelona now enforce it with automatic cameras — a €200 fine for a first offence, more for repeat violations. Rental cars registered in Spain generally carry the required environmental sticker, but a traveller doing a round trip from France in their own car needs to check their situation case by case; our dedicated article on Spain's ZBE zones covers the procedure city by city. A study by Álvaro Gómez-Losada, published in 2024 in Urban Climate, measured the actual effect of Madrid's central low-emission zone on air quality: an average drop of 12.1 µg/m³ in nitrogen dioxide after it took effect, which explains why these zones keep expanding year after year rather than staying a one-off measure (study available via Google Scholar: scholar.google.com/scholar?q=Gomez-Losada+air+quality+assessment+low+emission+zone+Madrid).

Another common trap: pedestrian historic centres, often closed to all traffic except residents and camera-monitored — mistakenly driving down a "forbidden" street in Seville or Granada typically costs between €90 and €200. Finally, the default speed limit in built-up areas has been 30 km/h on single-lane streets since the 2021 reform, with plenty of speed cameras and little tolerance; outside towns, on the other hand, the inland national roads remain among the quietest in Europe.

The "Spain Self-Drive" guide devotes a full section to car rental: a comparison of major brands and excess ranges by vehicle category, a city-by-city ZBE-checking procedure, and itineraries that steer around the traffic traps of the big centres. Enough to reach the counter already knowing the excess to negotiate rather than discovering it on the contract.