
Yes, you can typically add an under-25 driver to a rental car agreement, but it will almost always involve paying an additional Young Renter Fee daily. This fee is charged because drivers under 25 are statistically considered a higher risk by companies. The process and cost vary significantly by rental company and location, so you must inform the rental company at the counter when you pick up the vehicle. The additional driver must be present with their valid driver's license and usually a credit card in their name.
Major rental companies like Hertz, Enterprise, and Avis have specific policies. For instance, the minimum age to rent is usually 21, but renters aged 21-24 will face surcharges. Some companies, especially at airport locations, may not rent to anyone under 25 at all. It's not something you can usually do secretly; all drivers must be listed on the contract to be covered by the rental company's insurance.
Here’s a quick comparison of typical policies from major US rental companies:
| Rental Company | Minimum Age to Rent | Under-25 Fee (Daily Estimate) | Key Conditions |
|---|---|---|---|
| Enterprise | 21 | $20 - $25 | Must have a valid credit card; fees vary by state. |
| Hertz | 20 (at most locations) | $19 - $27 | Age 20-24 fee; under 20 not permitted. |
| Avis | 21 (18 in NY & MI) | $27 - $35 | Fee for ages 21-24; younger renters have restrictions. |
| Budget | 21 | $27 - $35 | Similar to Avis; fees are location-dependent. |
| Sixt | 21 | $25+ | Accepts drivers 18+ with a substantial young driver fee. |
The best strategy is to call the specific rental location ahead of time. Ask directly about their policy for adding a driver under 25 and get a quote for the total cost, including all fees and surcharges. This prevents any unwelcome surprises at the counter and allows you to shop around for the most reasonable policy. Always read the rental agreement carefully to confirm the added driver is listed correctly.

Absolutely, but be ready for a "young driver" fee that can add $20 to $30 to your daily rate. I learned this the hard way on a trip with my brother. We showed up, and the extra cost basically doubled our expected fees for the week. My advice? Don't just book online and assume it's fine. Pick up the , call the actual office you're renting from, and ask them point-blank: "What's your fee and process for adding my 22-year-old son?" Get the total cost in writing if you can.

You can, but it's a business decision for the rental company. They see drivers under 25 as a higher liability. The key is transparency. You must declare any additional drivers at the time of pickup. They will need to present their license, and the rental agent will add them to the contract for a daily surcharge. Trying to have an unlisted driver operate the vehicle is a major violation of the rental agreement and voids any insurance coverage, leaving you fully liable for any damage.

It's possible, but the rules are strict. The younger driver has to be with you when you get the car, with their own valid license. The rental company will run a quick check on their driving record. The fee is unavoidable with the major chains. If you're looking to avoid it, your best bet might be smaller, local rental companies. Sometimes they have more flexible policies or lower young driver fees than the big names you see at the airport. It always pays to compare.

Yes, but it comes with conditions and costs. The primary renter must meet the company's age requirement, usually 21 or 25. The under-25 driver will be subject to a daily surcharge, which is non-negotiable. This is because rental companies pay higher premiums to insure younger, less experienced drivers. This fee is per driver, so adding multiple young drivers compounds the cost. Always factor this into your budget, as it can make a seemingly cheap rental quite expensive. Proactive research is your best tool here.


