How to handle rental car cleaning, smoking and pet fees

What counts as a cleaning, smoking or pet fee?

The label on an invoice names the trigger — smoke odour or ash, an animal travelling in the cabin, sand from a beach day, a spilled drink — but the amount, and whether the operator may bill for it at all, comes from the contract and the local rules. Sixt's US rental information says fees of this kind can be either mandatory or permitted depending on the applicable law, that they vary by location, and that more information can be provided at the rental counter. [5]

The agreement itself carries the detail. Sixt directs renters to the jacket of the rental agreement for the full terms of its protection products, and to the counter for location-specific fee information. [5] Whether an animal may travel in the cabin at all is a separate question from what it costs to clean up afterwards; the pet and animal policy page covers the travel side.

Why do cleaning and smoking charges differ between countries and operators?

Two documents govern them: the rental agreement for your booking, and the law where the car is rented. Sixt's US rental information says fees can be mandatory or permitted depending on the applicable law and that they vary by location. [5]

Quoted prices do not fix the final number either. Sixt says the prices shown in its rental information are net prices, and that state, federal and local taxes apply to all rentals and charges. [5]

Business renters can sit on different terms: Sixt says corporate customers with individual agreements may have alternative prices and regulations. [5]

Which card pays a cleaning charge?

The card handed over at the counter. Sixt requires the payment method to be issued in the renter's name and physically presented at pickup, and authorises it at pickup for the rental price, all additional charges and extras, and a security hold set by the vehicle driven; those funds are not available to the renter during the rental. [5]

Paying online does not remove that step. Where a prepaid booking is paid through PayPal, Sixt still requires a valid physical card in the renter's name at pickup, used for the security deposit and any add-ons, and then for a rental extension or any additional charges accrued at the end of the rental. [5]

On a prepaid rate, Sixt says all extra costs that occur during the car rental are charged to the confirmed payment method. [5]

Which return checks reduce cleaning-fee disputes?

Start with the two things the operator measures against the agreement. Sixt records the charge level of electric vehicles at handover and at return and requires the car back at the level stated on the rental agreement; a lower level is recharged at the price stated on the agreement. [5] Fuel works the same way: where no prepaid fuel was bought and the car comes back with less than it left with, Sixt charges for the fuel used at the price per gallon stated on the rental agreement, while a tank returned full or at the level you received it carries no fuel charge. [5]

Then the paperwork. Sixt's long-term rentals require the renter to review, electronically sign and supply the vehicle's current mileage for each rental agreement in the series, which shows how much of the handover is written down. [5] Keeping the agreement and the return documents beside your own dated photographs of the cabin and boot costs nothing and gives a dispute a starting point; the damage inspection checklist sets out the same routine for bodywork.

If the car cannot be moved — Sixt gives being stuck in the mud as an example — towing can fall within the optional Extended Roadside Protection, which Sixt states is not insurance, and damage that the protection does not cover remains the renter's liability. [5]

Each operator publishes its own contact points: Enterprise runs a Help & FAQs hub with a general section on what you need for a rental and how to pick up and return the vehicle [3], Avis's help page links to lost and found and to feedback [7], and Budget's customer care page links to its FAQ, to a route for contacting customer service or submitting feedback, and to a claims and accident form [8]. If a charge is already on your statement, work through car rental charge dispute and complaint, and use the pickup and return checklist before the next rental.

Exceptions and limits

• Location and law. Sixt's US rental information says fees can be mandatory or permitted depending on the applicable law and vary by location, with details available at the rental counter. [5]
• Corporate agreements. Sixt says corporate customers with individual agreements may have alternative prices and regulations. [5]
• Taxes. Sixt's quoted prices are net prices, and state, federal and local taxes apply to all rentals and charges. [5]
• Prepaid fuel or battery charge. If the tank or charge is bought upfront, Sixt says not to refuel or recharge, requires the vehicle back with at least a 20% charge, and gives no refund for unused fuel or battery. [5]

Frequently asked questions

How much is a rental car cleaning or smoking fee?

There is no single figure to plan around. Sixt's US rental information says fees of this kind vary by location and can be mandatory or permitted depending on applicable law, with more information at the rental counter, and the rental agreement for your booking carries the terms that apply to you. [5]

Can a rental company take a cleaning charge after I return the car?

Sixt authorises the payment method at pickup for the rental price, all additional charges and extras, and a security hold, and uses the physical card presented at pickup for additional charges accrued at the end of the rental. [5]

What gets billed if the tank or battery comes back low?

Sixt bills fuel used at the price per gallon stated on the rental agreement, and recharges an electric vehicle returned below the level stated in the agreement at the price stated on the agreement. [5]

Do I have to clean the car before returning it?

The condition Sixt ties to the agreement is fuel or charge level, recorded at handover and return and billed at the agreement price when it is lower. [5] What counts as more than ordinary dirt in the cabin depends on the rental agreement and on the location, where Sixt says fee information is available. [5]

Where do I complain about a cleaning charge?

Avis's help page links to feedback and lost and found [7], and Budget's customer care page links to a customer service contact route for feedback and to a claims and accident form [8]; the dispute guide walks through the sequence.

Related pages

Car rental pickup and return checklist, car rental damage inspection checklist, car rental charge dispute and complaint, car rental pet and animal policy, and the Frequent Flyer Encyclopedia glossary.

Sources

Sources accessed on 18 October 2026. The operators covered here are Enterprise, Sixt, Avis and Budget; Hertz, National, Alamo, Dollar, Thrifty, Europcar and other operators are not covered.

1. Enterprise Car Rental FAQs, checked 18 October 2026
2. Sixt rental information for the United States, checked 18 October 2026
3. Avis help and customer service, checked 18 October 2026
4. Budget customer care, checked 18 October 2026