How to Add an Additional Driver to a Rental Agreement

Most rental companies charge a daily fee to add a second authorized driver, and this step matters more than it might seem — driving a rental car you're not listed on as an authorized driver can void insurance coverage entirely in the event of an accident. The additional driver typically needs to present the same documentation as the primary renter.

If you're planning to split driving duties on a long trip, adding the second driver at booking or pickup is worth the modest fee for the protection it provides.