Shared Car Ownership Agreement

Shared Car Ownership Agreement: A Comprehensive Guide

Car ownership can be expensive, and with the rise of car-sharing platforms like Zipcar and Turo, many people are opting to share ownership of a car with friends or family members. But just like any shared asset, it’s important to have a clear agreement in place to avoid any misunderstandings or disputes down the road.

In this guide, we’ll walk you through the key components of a shared car ownership agreement, from determining ownership percentages to outlining how the car will be used and maintained.

Ownership Percentages

The first step in creating a shared car ownership agreement is to determine ownership percentages. This will be important if any decisions need to be made regarding the car, such as selling it or making upgrades. It’s important to decide on these percentages upfront to avoid any confusion or disagreements later on.

Usage and Maintenance

Next, you’ll want to outline how the car will be used and maintained. This includes things like:

– Who will be responsible for routine maintenance and repairs?

– How will gas and other expenses be split?

– Will there be any restrictions on where the car can be driven or who can use it?

– How will scheduling work if multiple people need to use the car at the same time?


Another important factor to consider is insurance. All parties involved should be listed on the car insurance policy, and it’s important to determine who will be responsible for paying the premiums. Make sure to also include details on what happens if there’s an accident and who will be liable for any damages.

Sale or Transfer of Ownership

At some point, you may decide to sell the car or transfer ownership to one of the parties involved. It’s important to outline the process for this in the shared car ownership agreement. This includes things like how the sale price will be determined and how ownership percentages will be factored in.

Dispute Resolution

Finally, it’s important to include a dispute resolution process in the shared car ownership agreement. This can help prevent disagreements from escalating and potentially damaging relationships. The process can involve things like mediation or arbitration, and should be agreed upon by all parties involved.


A shared car ownership agreement can help ensure that everyone involved is on the same page when it comes to using and maintaining the car. By outlining ownership percentages, usage and maintenance, insurance, the sale or transfer of ownership, and a dispute resolution process, you can help prevent misunderstandings and disagreements down the road. If you’re considering sharing ownership of a car with friends or family members, be sure to create a comprehensive agreement to protect everyone involved.