The purpose of a surcharge isn’t to make money
It’s worth setting surcharges.
In fact, they’re necessary.
If someone smokes in the car, makes an extreme mess, fails to refuel, or seriously breaches the rental terms, there should be consequences.
But the primary purpose of a surcharge is to:
encourage the renter to follow the rules.
Not to generate extra revenue every time there’s even a minor deviation.
If your system means you’re constantly charging surcharges, that can quickly lead to a poor customer experience.
What should you let slide?
Not every mistake is the same.
For example, if someone:
- is 15–20 minutes late,
- returns the car with 2–3% less fuel,
- leaves a few footprints on the floor mat,
- returns the car a little dustier,
- or can only find a parking spot a few streets away,
it’s usually not worth starting an argument right away.
These are part of the normal course of renting out a car.
In the long run, being flexible often pays off more.
A good review is worth money
A positive review does more than just look good on your profile.
It helps the next renter decide.
If someone sees that others say you’re:
fair, quick to communicate, that the car is clean and renting is easy,
they’ll book with much greater confidence.
That means a good review could bring you several new bookings down the line.
By comparison, a surcharge of 3,000–5,000 forints may be a one-off payment.
That’s worth bearing in mind, too.
A repeat renter is worth even more
If someone has a good experience, they may not look around again next time.
They’ll come back to you.
That’s a huge advantage.
They already know the car.
They know the process.
And you know they’re reliable.
Fewer questions, less uncertainty, less admin.
In the long run, a repeat renter can be worth much more than a small surcharge.
But don’t go to the other extreme
Being flexible doesn’t mean you have to let everything slide.
If someone:
- causes significant damage,
- smokes in the car,
- returns it in a very dirty condition,
- returns it with a serious fuel shortfall,
- or repeatedly breaks the rules,
- then a surcharge is justified.
A good car owner isn’t petty, but won’t let people take advantage of them either.
That’s the balance that matters.
Pay attention to the renter’s attitude, too
Often, it’s not the problem itself that matters most, but how the renter handles it.
If someone says:
“Sorry, there’s a little less fuel in it than there should be. How can I make it right?”
that’s a very different situation from someone trying to deny the problem or pin it on you.
In the first case, it’s often worth being flexible.
In the second, it may be more important to apply the rules consistently.
Their attitude tells you a lot about whether you should count on this renter in the long term.
Don’t let everything slide just to get a good review
Balance is important:
- don’t let everything slide just because you’re afraid of a bad review.
- If a genuine problem has occurred, address it.
- If a surcharge is justified, charge it.
- But communicate calmly.
- Don’t get angry.
- Don’t make threats.
- Set out the facts:
- what happened,
- which rule applies,
- what amount is involved,
- and how they can settle it.
Clear, fair communication matters a lot, even in an unpleasant situation.
Think long term
You don’t make a living from a single rental.
You make it from many rentals.
So with every decision, it’s worth asking:
what will serve the business better in the long run?
A small surcharge?
Or a happy renter who:
leaves a five-star review, comes back, and recommends you to others?
In many cases, it’s the second.
A simple rule
This is the approach I’d follow:
Minor issue → be flexible.
Actual cost → settle it fairly.
Serious or deliberate rule-breaking → charge a surcharge.
Fair renter → show appreciation.
That way, a surcharge remains what it should be:
a safeguard.
Not the main source of revenue for your business model.
Because in the long run, the winner in the car rental business isn’t the one who collects the most surcharges.
It’s the one people are happy to rent from again.
