iRent Car Rental
Guide · Updated 2026-08-21 · iRent Car Rental, Miami & Fort Lauderdale

Car Rental Hidden Fees, and How to Spot Them

Why the price you are quoted online is so often not the price you pay, and the specific lines to check before you sign.

Almost nobody is lying to you. The cheap headline rate is real — it is just not the whole bill. Most of the difference is made up of charges that are disclosed somewhere, but not where you are looking when you compare prices. Here is what to check.

The usual additions

ChargeWhat it isHow to avoid it
Airport concession feeA percentage the airport takes from in-terminal desks, passed to youRent off-airport
Facility chargeFunds the rental centre building itselfRent off-airport
Fuel “convenience” refillPrepaid fuel at above pump price, unused fuel rarely refundedTake like-for-like and refill yourself
Toll transponder daily feeA per-day charge for the device, on top of the tollsAsk whether tolls are billed at cost
Young driver surchargeDaily charge for drivers under 25Ask before booking; it varies enormously
Additional driverPer-day charge to add a second driverAsk whether a spouse is included
Card service chargeA percentage for paying by cardPay cash where it is offered

The fuel policy is where most people lose money

Like-for-like means you bring it back as you got it — the fairest arrangement. Full-to-empty means you buy a tank up front at their price and get nothing back for what you do not use. Unless you are certain you will run it dry, like-for-like wins. Photograph the fuel gauge at pickup.

Deposits are not charges

A deposit is an authorization hold: the money is held on your card and released on return, not taken. The confusion is understandable, since the hold reduces your available balance exactly as a charge would. What matters is the amount and when it is released — ask both, and be careful with debit cards, where a released hold can take several days to reappear.

Three questions worth asking

  1. What is the total, including all taxes and fees, for my exact dates?
  2. What is the deposit, and when is it released?
  3. What is the fuel policy, and how are tolls billed?

Any operator worth renting from will answer all three without hesitating. Ours are answered on the requirements page, and if you are renting on a debit card that page covers the extra conditions.

Check live availability

Real-time prices from our own rental system — Miami Airport, Fort Lauderdale and West Palm Beach. No account needed, and you can pay at the counter.

See live prices →

Common questions

What are the most common hidden car rental fees?

Airport concession and facility fees, prepaid fuel sold above pump price, a daily toll transponder charge on top of the tolls themselves, young-driver surcharges, additional-driver fees, and card service charges.

Is a rental deposit the same as a charge?

No. A deposit is an authorization hold — the funds are held and released when you return the vehicle. It still reduces your available balance, and on a debit card the release can take several days to appear.

Which fuel policy is cheapest?

Like-for-like is almost always cheapest: you return it at the level you collected it. Prepaid full-to-empty means buying a whole tank at their price with no refund for what you do not use.

How do I avoid airport rental fees?

Rent from an off-airport location with a free shuttle. Concession and facility fees exist because the desk sits inside the terminal; a few minutes away, they do not apply.