Renting a car is one of the best decisions you can make when visiting Zakynthos, especially if you want to explore hidden beaches, mountain villages, and scenic coastal roads at your own pace. However, many travelers underestimate the hidden costs of car rental, which can quickly turn a budget-friendly trip into an expensive experience. Understanding these hidden costs of car rental is essential if you want to plan your holiday smartly and avoid unpleasant surprises.

In 2026, more travelers are becoming aware of the importance of transparency, especially when it comes to car rental services. While some companies advertise very low daily prices, the reality is that the final cost can be significantly higher due to various extra charges. That is why knowing the real hidden costs of car rental can help you choose the right provider and avoid unnecessary stress during your holiday.

In this guide, we will break down the most common hidden costs of car rental in Zakynthos and show you exactly how to avoid them. We will also explain why choosing a reliable company like Top Rentals can save you money, time, and hassle. If you want to plan everything properly, you can also read our article about Zakynthos travel checklist: Flights, accommodation & the perfect rental car for a complete overview.

1. Are low daily prices really the best deal?

Many travelers are attracted by extremely low daily rental prices, but these often hide important details. The advertised price may only include the most basic package, leaving out essential protections and services. This is one of the most common hidden costs of car rental, as customers only discover the real price at pickup.

Basic insurance, for example, often does not include damage coverage, meaning you are fully responsible for any damage to the vehicle. Without additional protection like CDW or FDW, even minor scratches can result in high repair costs. This is why understanding the hidden costs of car rental related to insurance is crucial before booking.

With Top Rentals, pricing is transparent from the beginning, and all rental rates include VAT, local taxes, and unlimited mileage. There are no surprises at pickup, and you can clearly choose between Basic, Standard, or Premium packages. If you want to understand pricing better, read our article How much does it really cost to drive around Zakynthos for a week?.

2. What about insurance excess and damage coverage?

Insurance is one of the biggest sources of hidden costs of car rental. Many companies offer low prices but include high excess amounts, sometimes up to €1800, depending on the car category. This means that in case of damage, you could pay a significant amount out of pocket.

Collision Damage Waiver (CDW) reduces this excess, but it usually does not cover parts like tires, glass, or mirrors. Full Damage Waiver (FDW), on the other hand, reduces the excess to zero and offers much more complete protection. Not understanding these differences is one of the most expensive hidden costs of car rental.

Understanding what each package includes is essential if you want to avoid the most common hidden costs of car rental and choose the right level of protection for your trip.

Basic Package (Included in all rentals)

• Third Party Liability Insurance (TPI)
• Personal Accident Insurance (PAI)
• Unlimited kilometers
• VAT & local taxes included
• 24/7 road & phone assistance
• No credit card or deposit required

Standard Package (CDW – Collision Damage Waiver)

• Third Party Liability Insurance (TPI)
• Personal Accident Insurance (PAI)
• Unlimited kilometers
• VAT & local taxes included
• 24/7 road & phone assistance
• No credit card or deposit required
• Collision Damage Waiver (CDW) included
• Reduced excess (between €600 – €1800 depending on category)
• Theft protection
• Fire protection
• Covers bodywork only (does NOT include wheels, tires, glass, mirrors)

Premium Package (FDW – Full Damage Waiver)

• Third Party Liability Insurance (TPI)
• Personal Accident Insurance (PAI)
• Unlimited kilometers
• VAT & local taxes included
• 24/7 road & phone assistance
• No credit card or deposit required
• Collision Damage Waiver (CDW)
• Full Damage Waiver (FDW)
• Zero excess (0€ liability for covered damage)
• Theft protection
• Fire protection
• Covers wheels, tires, glass, and mirrors protection

We offer clear insurance options, including a Premium package with zero excess and extended coverage. This means you can drive stress-free and enjoy your trip without worrying about unexpected costs. If you are unsure which option to choose, read Which transmission is the right choice for the island’s mountain roads? Automatic vs. manual in Zakynthos for more driving insights.

3. Are extra drivers and add-ons increasing your cost?

Another common category of hidden costs of car rental comes from optional extras. Many companies charge additional fees for extra drivers, child seats, or GPS devices, which are not always clearly communicated during booking. These small daily fees can quickly add up over a week.

For example, an additional driver typically costs around €3 per day, and child seats also cost around €3 per day. While these costs are not necessarily high, they become significant if you are not aware of them in advance. This is why they are considered part of the typical hidden costs of car rental.

We are transparent about all extras, so you know exactly what you are paying for. There are no unexpected charges, and you can plan your budget accurately from the start. If you want to avoid planning mistakes, check out Common car rental mistakes tourists make in Zakynthos and how to avoid them in 2026.

Extras

Enhance your trip with our extra services, available for a small daily fee. Enjoy a more comfortable and safe journey!

Additional Driver

• Share the ride for extra convenience!
• Price: 3.00€/day

Baby Seat (0 – 17 kg)

• Ensure the safety and comfort of your little one with our baby seat, designed for infants.
• Price: 3.00€/day

Booster Seat (17 – 36 kg)

• For older children, our booster seat provides the perfect fit, offering both safety and comfort.
• Price: 3.00€/day

4. Fuel policy and refueling charges

Fuel policy is another area where hidden costs of car rental can appear. We, as other companies, use a “same-to-same” policy, meaning you must return the car with the same fuel level as at pickup. If you fail to do so, you may be charged for the missing fuel plus an additional service fee.

Many travelers overlook this detail, especially at the end of their trip when they are rushing to the airport. This often leads to unnecessary charges that could have been easily avoided. Understanding this aspect helps you reduce the hidden costs of car rental significantly.

With Top Rentals, the fuel policy is clearly explained, and there are no hidden penalties. You simply return the car with the same fuel level and avoid extra charges. For more budgeting tips, you can read Zakynthos fuel prices: Cheapest stations & budget guide for drivers.

5. Late pickup, return Fees, and out-of-hours charges

Timing is another factor that can generate hidden costs of car rental. While delivery and collection are free during business hours, late-night or early-morning services usually come with an extra fee. These charges typically range between €10 and €20. For more details, feel free to check out our FAQs section.

Additionally, late returns can result in penalties or even an extra rental day being charged. Many travelers are unaware of these policies until it is too late. This makes timing-related fees one of the most overlooked hidden costs of car rental. We clearly state all timing conditions, including a grace period for returns. This allows you to plan your schedule more efficiently and avoid unnecessary fees. If you want to optimize your trip timing, read Which are the best months to visit Zakynthos by car?.

6. Cleaning fees, fines, and damage charges

Cleaning fees are another example of the hidden costs of car rental that can catch travelers by surprise. Smoking inside the car or returning it excessively dirty can result in additional charges. These fees can go up to €80 depending on the situation. Traffic fines and parking penalties are also the responsibility of the renter. If the rental company needs to process these fines, an administrative fee may also be added. These are often unexpected and contribute to the overall hidden costs of car rental.

Top Rentals provides clear guidelines to help you avoid these charges. By simply following the rules and taking care of the vehicle, you can eliminate most of these extra costs. For more driving tips, read Where to park in Zakynthos Town: Insider tips for free & paid zones.

7. Restrictions and misuse penalties

One of the most serious hidden costs of car rental comes from violating rental terms. Driving off-road, using the car on unsuitable roads, or allowing unauthorized drivers can void your insurance completely. In such cases, you become fully responsible for any damage.

Many travelers are unaware that even driving on rough or unpaved roads can be considered misuse. This is particularly important in Zakynthos, where some scenic areas are not suitable for all vehicles. These restrictions are a major source of hidden costs of car rental. We clearly explain all usage rules and help you choose the right vehicle for your needs. If you plan to explore more remote areas, you can also read Best SUVs for Zakynthos trip in 2026 for a perfect summer holiday.

Understanding the hidden costs of car rental is the key to planning a stress-free and budget-friendly holiday in Zakynthos. From insurance and fuel policies to extra drivers and timing fees, every detail matters when calculating the real cost of your rental. By being informed and choosing a transparent rental company, you can avoid surprises and enjoy your trip to the fullest.

If you want complete freedom to explore the island, avoid crowded buses, and discover hidden places at your own pace, renting a car is still the best option. To better understand why, we recommend reading Zakynthos without a car: What you’ll miss and why freedom matters. You can also explore the Top 7 scenic drives in Zakynthos, which you can only explore by car, for inspiration.

At Top Rentals, transparency is our promise. With no deposit, no hidden fees, clear insurance options, and a wide range of vehicles starting from just €11.99/day, you always know exactly what you pay for. Choose Top Rentals in 2026 and turn every kilometer into a smooth, safe, and unforgettable Zakynthos experience.