
Yes, a parent can typically cosign a rental car agreement, but it is not a universal policy and depends heavily on the specific rental company's rules. The primary renter must usually be present and meet the minimum age requirement (often 25), while the cosigner must also meet similar age and creditworthiness standards. The cosigner is legally assuming joint responsibility for the entire rental agreement, meaning they are financially liable for any charges, damages, or violations.
Key Requirements for a Cosigner:
Major companies like Hertz, Avis, and Enterprise have varying policies. Some may allow it only for corporate accounts or may not permit it at all for standard leisure rentals. It is crucial to call the specific rental location in advance to confirm they allow cosigners and to understand their exact requirements. This avoids surprises and ensures a smooth rental process for everyone involved.
| Rental Company | Allows Cosigner? | Typical Cosigner Age Requirement | Primary Renter Age Requirement | Notes |
|---|---|---|---|---|
| Enterprise | Varies by location | 25 | 21 (with fee) | Policy is not universal; call branch directly. |
| Hertz | Often for corporate accounts | 25 | 20-24 (with fee) | Not commonly offered for standard rentals. |
| Avis | Varies by location | 25 | 21 (with fee) | Strict eligibility; cosigner assumes full risk. |
| Budget | Rarely | 25 | 21 (with fee) | Discouraged for leisure rentals. |
| Local/Regional Companies | More likely | 25 | 21+ | May have more flexible policies. |


