Why surprise charges happen
Most rental car charges after the trip are legitimate: fuel, tolls, a parking fine. But mistakes happen too. In October 2026, news outlets in North America reported customers being billed thousands of dollars for tens of thousands of kilometres they said they could not possibly have driven in a week. Disputes like these are far easier to win when the customer has evidence.
The steps below help you avoid charges, and give you what you need to dispute them.
The most common extra charges
| Charge | How to avoid it |
|---|---|
| Fuel | Return with the agreed fuel level and keep the receipt from a station near the drop-off |
| Mileage | Check whether mileage is unlimited; photograph the odometer at pickup and return |
| Damage | Record the car's condition at pickup; get a damage-free return receipt |
| Tolls | Ask how tolls are billed; transponder service fees can add up per day |
| Cleaning and smoking | Remove sand, rubbish and pet hair; never smoke in the car |
| Late return | Know the grace period; even an hour late can add a full day |
| Additional drivers and young drivers | Declare them; undeclared drivers can void insurance |
| Fines and admin fees | Parking and speeding fines arrive later, often with an admin fee |
At pickup: record everything
- Read the contract before signing, especially mileage limits, fuel policy, insurance and excess (deductible).
- Walk around the car with your phone recording video, including wheels, windscreen, roof, bumpers and interior.
- Photograph the odometer and fuel gauge with the time stamp.
- Make sure existing damage is written on the form and get a copy.
- Decline extras you do not need, and check your own cover first.
At return: get proof
- Return during staffed hours if possible, and ask for a closing receipt showing fuel, mileage and no new damage.
- Take another video and photos, including the odometer and fuel gauge, in the return bay.
- Keep the fuel receipt.
- If you return out of hours, take especially thorough photos, and note the parking bay and time.
Keep everything until well after your card statement shows the final charge.
How to dispute a charge
- Ask for an itemised bill and the evidence behind the charge: photos of damage, repair estimates, odometer or fuel records.
- Write to the rental company, by email or its complaints form, explaining why the charge is wrong. Attach your photos, receipts and contract. Ask for a refund within a set time, such as 14 days.
- Escalate within the company if the branch does not help: corporate customer service or the complaints team.
- Dispute with your card issuer if the company refuses or does not respond. Credit cards usually offer the strongest protection. Explain the dispute and supply the same evidence.
- Use a consumer body or small claims process if needed. Many countries have consumer agencies, ombudsmen or small claims courts that handle disputes like this.
Stay polite and factual, and keep copies of every message.
Insurance: check before you go
- Collision damage waivers reduce what you pay if the car is damaged, but often come with a large excess.
- Excess insurance bought separately is often cheaper than the counter product, but you may have to pay the rental company first and claim back.
- Credit card cover varies widely. Check which countries and vehicles are covered and whether you must decline the company's cover.
- Travel insurance sometimes includes rental excess cover.
If you are renting abroad
- Bring your licence, and an International Driving Permit if the country requires one.
- Check whether cross-border trips are allowed.
- Understand local toll and low-emission zone rules, which can trigger fines months later.
For other travel rights, see our guide to flight delays and cancellations and our travel safety tips.
Key takeaways
- Photograph the car, odometer and fuel gauge at pickup and return.
- Get a closing receipt and keep the fuel receipt.
- Dispute wrong charges in writing with evidence, then with your card issuer.
- Check your own insurance cover before buying extras at the counter.
This article is general information, not legal advice. Consumer rights vary by country and contract.