Car Rental Taxes
In addition to the daily rental rate and the charges mentioned above, taxes (which vary by state) are also charged. For international car rentals, taxes often add up to 10 to 30 percent in addition to the rate quoted. International rentals are also subject to a possible Value Added Tax (VAT). At a few airport rental locations, some car rental firms may also charge an "airport surcharge" fee of about 10% of the rental rate in addition to normal taxes.
Be sure to read the rental agreement carefully to see what the rental rate covers, possible restrictions, and the liability for the renter. If a car rental firm is offering a low rate, make sure that the agreement's restrictions do not outweigh the cost savings.
Car Rental Drop-off Charges
An extra fee is usually charged if a car is returned to a different city or location than where it was picked up. Be sure to advise the agent when making your reservation if you wish to drop off the car at a different location. The drop-off charge may already be included in the car rental rate.
Gasoline
Familiarize yourself with the car rental company's policy on gasoline when you check in. Some companies charge you a flat rate for gas upon renting the car and expect you to return with the gas tank empty. Most, however, will assess a charge based on the firm's gas rates for filling the gas tank when the car is returned, if it is not already full. Since gas prices are usually less expensive at gas stations, it is advisable to fill the tank before returning the car if you are expected to return it with a full tank of gas.

CAR RENTAL INSURANCE OPTIONS
Collision Damage Waiver (CDW) or Loss Damage Waiver (LDW)
If a rental car is damaged, the renter may be responsible for the first several hundred dollars of damage (the deductible) up to the full price of the car. By purchasing CDW (also known as Loss Damage Waiver or LDW), the renter is released from responsibility of any loss or damage to a vehicle up to the full value of the car. However, if the renter is in violation of the rental agreement, the waiver is void. Your personal auto insurance may already provide coverage for damage to rental cars and the purchase of CDW or LDW may not be necessary. Regulations for selling CDW/LDW vary from state to state.
CDW/LDW is usually an optional feature, however, a few companies require renters to purchase this waiver. Determine whether or not you need CDW/LDW before you arrive at the rental counter (check your own automobile insurance policy) and consider how much this CDW/LDW may increase the daily rental rate (CDW/LDW costs range from $8 - $12 per day). In some cases, you may find a special rate for a larger car which already includes CDW/LDW. In the long run, the larger car may be less expensive than the economy car with additional CDW/LDW costs.
Also, some credit card companies offer CDW/LDW insurance as a card holder benefit. Be sure to read the fine print on these agreements (as well as on car rental agreements!) Usually the protection afforded by credit card companies could be supplemental to your own insurance. Therefore, if you get in an accident, your own insurance will cover the repair costs up to its maximum and then the credit card company will cover the difference. As a result, your own car insurance rates may be affected.
Personal Accident Insurance (PAI)
Personal Accident Insurance provides accidental death and medical coverage for the renter and additional passengers during the time they are riding or driving with you. Check your personal car insurance policy to see if it covers car rentals. If your policy covers car rentals, you may not need PAI. This insurance is usually optional.
Personal Effects Coverage (PEC)
This coverage provides protection against loss or theft of personal belongings from the rental car. Once again, check your own auto insurance policy to determine whether your coverage includes rental cars.
Additional Liability Insurance (ALI)
ALI is an optional insurance that protects the renter and other authorized operators against claims made by third parties for bodily injury/death and property damage caused by the use or operation of the rental vehicle. Check with your own auto insurance policy to determine whether additional excess coverage is already provided.
CAR RENTAL DOCUMENTS AND REQUIREMENTS
All car rental companies require a valid drivers license. Some car rental companies check the driver's history and will deny a car to a customer with a poor driving record. In some foreign countries, an international drivers license may be required.
In addition, many car rental companies require a major credit card to guarantee payment even if there is a prepaid voucher or direct billing to the client or corporation. If a credit card is being used for payment, be aware of your credit card limit; many car rental companies require immediate credit approval before renting the car which can substantially reduce your remaining balance of credit.
Alternatives to Credit Card Payment
If you do not have a credit card, most car rental locations will accept their own pre-paid vouchers issued by an appointed travel agent. Some car rental companies require that you fill out a cash qualification questionnaire at the rental location during normal business hours so that it may be verified.
Most companies will require a large cash deposit or a cash advance that can even exceed the estimated charges of the rental if a credit card is not presented for payment. They may also require the renter to be over a certain age. The final acceptance of a non-credit card rental, however, is the decision of each individual rental location.
Driver's Age
Usually, car rental companies require renters to be at least 18 years old, but some firms now require a minimum age of 25 years. For consumers under 25, a credit card is usually required for payment and the rental rate may be slightly higher.
Similarly, senior citizens over a certain age may not be allowed to rent cars in some cities. Verify the age restrictions when making your reservation.
Number of Drivers
Although policies vary, many car rental firms allow an immediate relative who is of age to drive the rental car. Some firms also permit a direct business associate to drive. Read the rental contract carefully; it will specify who can drive the car. Signatures of all drivers and their drivers licenses may be required by the rental firm. There may be a charge for any additional drivers added to the rental agreement.

CAR RENTAL CONFIRMATIONS
Travelers should always receive a voucher or confirmation from their travel agent before departing. This document should have a confirmation number, the car rental company name, type of car requested, flight information and date. If the car rental firm is located outside the airport, a telephone number for the courtesy car pick-up should be provided.
Confirmations also often help the car rental firms locate customers who have not picked up their reserved car. As a result of industry automation, the car rental firm can sometimes inquire to see if a renter's flight is delayed. Usually, a car rental firm will hold a reserved car for several hours before cancelling.
If you are considering two different flights, be sure to advise the car rental firm. Also, the company should be notified of any cancellations so that they can rent that car to another customer.
PICKING UP YOUR RENTAL CAR
Upon arriving at the car rental counter, present your confirmation number, voucher and credit card, if necessary. The customer service agent will then complete the process and direct you to where you can pick up your car. READ YOUR CAR RENTAL AGREEMENT before you sign it to familiarize yourself with your liability and to ensure that you know exactly what you will be paying for when you return the car.
Before leaving the rental lot, inspect the car for the correct mileage information and any visible damage to the car. If damaged, a notation should be made on the contract before leaving.
Take a few minutes to become familiar with the car. Adjust your seat and mirrors. Locate the controls for the turn signals, windshield wipers, lights (high and low beams) and cruise control (if applicable). Notice the placement of the horn and control panel for defroster, air conditioning, etc.
RETURNING THE RENTAL CAR
Rates are usually based on a 24-hour period, with a one-hour grace period allowed to return the car. If you keep the car for more than four hours after it was due back at the rental company, it is usually worth extending the contract for another day since overtime charges average $12 to $15 per hour. Hourly car rental rates are usually higher.
Some rates, like weekend specials, are only available during certain time periods. Keeping the car beyond that time may change the rate you pay for