A rental car can only be driven by the primary renter and any additional drivers listed on the rental agreement. Every driver must meet the rental company’s age rules, hold a valid driver’s license, and have a clean driving record.
Many people think it is fine to hand the keys to a friend or family member. It is not. Letting anyone not listed on the contract drive can void your insurance and leave you paying for all damage out of pocket.
This guide covers who can legally get behind the wheel, age requirements, what documents you need, how to add extra drivers, and what happens if you break the rules.
The Primary Renter: Who Signs the Agreement and Why It Matters
The primary renter is the person who signs the rental contract at the counter. This person is always listed as an authorized driver. They take on full legal responsibility for the car for the whole trip.
Here is what that means in plain terms:
- The primary renter must report any accidents to the car rental company.
- They handle all insurance claims if something goes wrong.
- The credit card used to pay must be in the primary renter’s name.
- Their name must match their driver’s license and the reservation.
Some people try to book a car for someone else to drive. This is possible at some locations, but the person who signs the contract must still be listed as a driver. You cannot just pick up a car for a friend and have them drive it without being on the agreement.
Who Else Can Legally Drive a Rental Car?
Anyone other than the primary renter who drives the car must be listed on the rental agreement as an authorized driver. The rules change based on who that person is and which company you rent from.
Spouses and Domestic Partners
Most major U.S. rental companies let a spouse or domestic partner drive for free. The partner still needs a valid driver’s license and must meet all age rules.
State law also protects you in many places. If you rent in California, Illinois, Indiana, Iowa, Missouri, New York, Oregon, Texas, Utah, or Wisconsin, your spouse or domestic partner drives free by law.
A few things to keep in mind:
- The spouse does not always need to be at the counter in person.
- If you have different last names, bring proof of marriage or a shared address on your license.
- Always confirm with the counter agent. Do not assume the free spouse rule is automatic.
Family Members and Friends
Adult family members and friends can be added as additional authorized drivers. They must show up at the rental counter in person. They also need to bring a valid driver’s license and meet all age requirements. An additional driver fee usually applies.
These fees add up fast on longer trips. A seven-day rental with one extra driver at Enterprise could cost an extra $105.
Business Colleagues and Corporate Rentals
On business rentals, fellow employees can often drive at no extra charge. This applies when the rental is booked at a corporate rate or with a BCD (Business Discount Code).
All co-workers who may drive must still present ID and be added to the rental agreement.
How to Add an Additional Driver to Your Rental
Adding a driver is simple if you follow these steps. Missing one step can leave the extra driver uncovered.
Step 1: Decide before you book. If you know who will share the driving, add them when you make the reservation online. Some booking platforms let you do this in advance.
Step 2: Bring the additional driver to the counter. Most companies require additional drivers to be in person at the rental counter with their valid driver’s license. Do not try to add someone remotely.
Step 3: Present required documents. The additional driver must show their physical, unexpired driver’s license. International drivers also need their passport and IDP if required.
Step 4: Sign the additional driver form. The additional driver signs the rental agreement. This confirms they accept all terms and conditions.
Step 5: Pay the fee if it applies. Unless you qualify for an exemption, expect an additional daily driver fee of $10 to $15 at most companies. Check before you arrive to avoid surprises.
Step 6: Confirm the driver’s name on the printed agreement. Before leaving the counter, look at the printed or emailed rental agreement to make sure the additional driver’s name appears. This is your proof of authorization if anything goes wrong.
Can you add a driver after you pick up the car?
Yes, in most cases. You can visit another branch in person, and the extra driver must present ID. However, there will be a gap in coverage if that person drives before being officially added. Adding all drivers upfront is always safer.
What Happens If an Unauthorized Driver Takes the Wheel?
This is one of the most important things to understand before handing the keys to anyone.
Insurance Becomes Void
In case an unauthorized driver causes an accident:
- All rental company insurance, including the Collision Damage Waiver (CDW) and Loss Damage Waiver (LDW), is typically voided immediately.
- Your credit card rental car insurance is also likely void, because most cards require you to follow the rental contract.
- Your personal auto insurance may also deny the claim if the driver was not authorized.
Violating the rental contract, such as allowing an unauthorized driver, can void the waiver entirely.
Financial Penalties
Here are the common penalties for an unauthorized driver:
- Fines: $50 to $400 per day, depending on the company and state.
- Full damage liability: you may pay all repair costs, replacement value, and loss-of-use fees.
- Third-party costs: if the driver injures someone or damages property, you may be liable for all medical and legal costs.
- Contract termination: the company can cancel your rental on the spot.
- Future restrictions: repeat violations can get you blacklisted from renting with that company or related brands.
The daily additional driver fee of $10 to $15 per day is far cheaper than the cost of a single accident with an unauthorized driver. Always add drivers officially.
Special Situations and Common Questions
Can a Non-U.S. Citizen or Tourist Rent a Car?
Yes, foreign nationals on tourist, business, student, or ESTA visas can rent from all major U.S. brands. You need a valid home-country driver’s license, passport, IDP if required, and a credit card for rental car payment in the primary driver’s name. Cash rentals are generally not available to international drivers.
Can I Rent a Car for Someone Else to Drive?
You can book a car, but the driver must be listed as an authorized additional driver on the rental agreement. You cannot simply pick up a car for a friend to use without being on the contract yourself.
What About Luxury or Exotic Vehicles?
Most companies require drivers to be 25 or older to rent premium, luxury, or sports vehicles. Luxury cars always require the driver to be at least 25. Some high-end rentals also require several years of driving experience.
Can Someone with a Past DUI Still Rent?
A DUI conviction within the past 48 months will disqualify you from most major companies. A DUI, DWI, or DWAI in that window is a firm disqualifier. After the window passes, you may be eligible again, but the company may still run a DMV check and deny the rental at their discretion.
Can an International Driver Under 25 Rent a Car?
Yes, the same age restrictions and young driver surcharges apply to international drivers as to U.S. renters. You also need your home-country license, passport, and an IDP if your license is not in English.
Frequently Asked Questions
Can my spouse drive the rental car without being on the agreement?
At most major U.S. rental companies, a spouse or domestic partner can drive for free as long as they meet age and license rules. In many states, companies are legally required to allow this at no charge. However, they still need to be listed as an authorized driver. Always confirm with the counter agent at pickup.
Can I let my adult child drive the rental car?
Only if they are listed as an authorized additional driver on the rental agreement. They must be at the counter with a valid license, meet the minimum age of 21 (or 18 in New York or Michigan), and pay any additional driver fee that applies.
What happens if I do not add an additional driver and they get in an accident?
Your CDW and LDW are likely voided. You become personally responsible for all vehicle repair costs, third-party liability, and related expenses. Fines of $50 to $400 per day may also apply. The rental company can also cancel your contract immediately.
Can someone under 21 drive a rental car in the U.S.?
In most states, no. In New York and Michigan, 18-year-olds can rent and drive, but with very steep underage driver fees that can exceed $40 to $84 per day, depending on the company.
Do I need an International Driving Permit to rent a car in the U.S.?
It depends on your home license. If your license is in English or uses a Latin-based alphabet, an IDP is recommended but not always required. If your license uses non-Latin characters such as Russian, Arabic, or Japanese, most rental companies require an IDP alongside the original license. You must apply for your IDP before you leave your home country.
Can a coworker drive the rental car on a business trip?
Yes, but they must be added to the rental agreement as an authorized additional driver. Under many corporate BCD rates, co-workers on official business trips are exempt from additional driver fees at companies like Avis and Budget.
Can I drive a rental car with a suspended license?
No. A suspended, revoked, or expired license disqualifies a driver from operating any rental vehicle. Companies like Avis may run an electronic DMV check to verify your status before handing over the keys.
Is there a maximum age to rent a car in the U.S.?
No. Major U.S. rental companies do not set a maximum age limit at domestic corporate-operated locations. Some international locations apply an upper age limit of 70 to 75. Always check local rules when renting abroad.
