Fee glossary
Rental car fees and add-ons, explained
What each line on a rental-car receipt means, whether you can decline it, what to say at the counter, and how to dispute it. Written from public sources and a real itemized receipt.
General consumer information, not legal advice. The FTC's 2025 junk-fee rule covers only event tickets and lodging, not rental cars. Why that matters.
Optional add-ons you can decline
CDW / LDW
Collision or loss damage waiver
A waiver, not insurance. If you buy it, the rental company agrees not to hold you responsible (or to limit what it charges) for damage to…
SLI / LIS
Supplemental liability insurance
Optional coverage that raises the liability limits for injury or damage you cause to other people or their property while driving the…
PAI / PEC
Personal accident insurance and personal effects coverage
Optional coverage for medical or death benefits for you and your passengers (PAI) and theft of belongings from the car (PEC).
RSP / RSA
Roadside protection or roadside assistance plan
An optional daily fee that covers service charges for things like lockouts, lost keys, running out of fuel, jump starts, or flat-tire…
TLW and similar
Tire, glass and windshield packages
Optional daily packages that cover damage to tires, wheels, windshields, glass or lights, depending on the company. Codes vary from company…
FSO / GSO / FPO
Fuel service and prepaid fuel options
Optional ways to pay the company for fuel instead of returning the car full. A prepaid tank is usually charged for a full tank whether or…
Optional programs with conditions
Company-set fees (not taxes)
Usually mandatory at airports
Have a receipt in front of you?
The receipt checker totals the add-ons, compares them to your quote and drafts a dispute letter. It saves nothing.