Renting a car in another country feels like freedom — until the rental agent rapid-fires insurance options in another language, the “full” tank wasn’t full, and you discover the hard way that roundabouts have local rules. What you should know before renting a car in another country comes down to four things: the paperwork, the insurance maze, the driving differences, and the scams. Get these right and you’ll have the best seat in the country; get them wrong and you’ll have the most expensive lesson of the trip.
What Should I Know Before Renting a Car in Another Country? The Paperwork
Your US license + an International Driving Permit (IDP). Many countries legally require an IDP alongside your state license — it’s a standardized translation, not a separate license. Get it from AAA before you leave ($20, two passport photos, 10 minutes at any AAA office — see AAA’s official International Driving Permit information for details). Some countries (most of Europe, for example) don’t strictly require it for US licenses but rental agencies may ask; others (Japan, many Asian and Middle Eastern countries) absolutely do. The $20 is cheap insurance against a ruined rental pickup.
Passport and credit card in the driver’s name. The rental must be in the name on the credit card — no exceptions, and debit cards are often refused or require huge deposits. Bring the physical credit card (not just the number), your passport, and your license + IDP. Photograph all documents and email them to yourself as backup.
Age restrictions. Many countries rent only to 21+ or 25+, with young-driver surcharges under 25 that can double the cost. Some countries have upper age limits too (75+ restrictions exist in parts of Europe and Asia). Check before you plan around a rental.
Check the State Department’s driving abroad guidance for your destination. The State Department’s country pages include driving-specific advisories — road conditions, required documents, and areas to avoid driving. Five minutes of reading prevents nasty surprises.
The Insurance Maze, Decoded
CDW/LDW (Collision/Loss Damage Waiver): not technically insurance, but a waiver where the rental company agrees not to charge you for damage. It’s the expensive daily add-on ($15–40/day) — and the highest-margin product in the rental business.
Before buying theirs, check what you already have: many US credit cards (Chase Sapphire, Amex, Capital One Venture) include primary rental car coverage abroad — meaning you can decline the rental company’s CDW entirely. Call your card issuer before the trip and ask specifically: “Do I have primary rental coverage in [country]?” Get the answer noted. This single call routinely saves $200+ per trip.
The excess/deductible trap: even with “insurance,” most foreign rentals have a large excess (deductible) — $1,000–3,000 you’re liable for. Third-party excess-reduction policies (bought online before the trip, $5–10/day) cover this gap for far less than the rental desk’s price. Or use a card with primary coverage, which typically covers the full value.
Third-party liability: the critical one — damage to other people and property. Rental base rates usually include the legal minimum, which can be shockingly low in some countries. Supplemental liability (SLI) is worth serious consideration where minimums are low.
Booking Smart
- Book from home, in advance. Walk-up rates at foreign airports are brutal — advance online booking is routinely 30–50% cheaper. Compare across aggregators, then check the rental company’s own site.
- Manual vs. automatic: specify and pay. Outside the US, manuals dominate — automatics cost 30–60% more and sell out. If you can’t drive stick, book the automatic early and confirm it (get written confirmation — “automatic requested” sometimes means “we’ll try”).
- Size down. European old towns, island roads, and Asian streets punish big cars. The smallest car that fits your luggage is the right car — parking and narrow streets will thank you.
- One-way international rentals: usually punishingly expensive or impossible. Plan loop routes or check the drop fee before assuming.
- Photograph everything at pickup. Every scratch, dent, and scuff — timestamped photos, plus the fuel level and mileage. This 5-minute ritual defeats the most common rental scam worldwide: charging you for pre-existing damage.
Driving Differences That Actually Matter
Side of the road: the UK, Ireland, Japan, Australia, and much of southern Africa drive on the left. The first hour is the danger zone — roundabouts and turns are where wrong-side mistakes happen. Repeat “stay left” like a mantra; put a sticky note on the dashboard.
Roundabouts: yield to traffic already in the circle, and in left-driving countries, circulate clockwise. They’re safer than intersections once you learn them — which takes about three roundabouts.
Speed limits and enforcement: speed cameras are everywhere in Europe and fines follow you home (rental companies pass them on with admin fees). Limits are in km/h — 130 km/h is ~80 mph, not 130 mph. Learn the conversion cold.
Fuel: “petrol” vs. “diesel” — putting the wrong fuel in destroys engines and rental contracts. Diesel pumps are often black, petrol green (varies by country — check the cap label, which usually states the fuel type). Many countries also have toll roads requiring transponders or vignettes (stickers) — ask the rental agent what’s needed.
Right of way and local customs: flashing headlights, honking norms, and pedestrian priority vary enormously. The autobahn’s left lane is for passing only; in Italy, the horn is punctuation; in Japan, the hazard lights mean “thank you.” A 10-minute read on local driving culture prevents the mistakes that cause accidents.
Scams and Gotchas
The damage scam: defeated by pickup photos (above). Also photograph the final fuel level and get a return receipt — “you returned it empty” is the sequel scam.
The insurance hard-sell: agents earn commission on the daily insurance. A firm “I have primary coverage through my credit card, please decline all extras” ends it. Don’t let them scare you — but do actually have the coverage before saying this.
Toll and fine pass-throughs: rental companies charge hefty admin fees on top of tolls and tickets (often $30–50 per incident). Drive clean; it’s cheaper.
Currency gotchas: pay the rental in local currency on your no-foreign-fee card (never accept the “pay in USD” conversion — see the best way to exchange currency when traveling abroad guide for why). Security deposits ($500–2,000 holds) are normal — ensure your card has the available credit.
For the driving itself, the road-trip skills from best road trip routes through the American Southwest transfer beautifully — the freedom of a rental car in a new country is the same joy, just with different road signs. And when the driving’s done, run the cheapest way to travel between US cities math for the next leg — sometimes the rental was for the scenic part and the bus wins the rest.
The Practical Takeaway
Before you go: get the $20 IDP from AAA, call your credit card about primary rental coverage, book the smallest automatic they’ll guarantee (early), and read the State Department’s driving notes for your destination. At pickup: photograph everything, decline the upsells firmly, confirm fuel and toll requirements. On the road: learn the local rules in 10 minutes, respect the speed cameras, and fuel correctly. Do this and the rental car becomes what it should be — the best part of the trip, not the most expensive lesson.
