Reviewed by Daniel Mirkovic
Updated September 18, 2025 | Published January 9, 2024
OPCF 27 is an optional endorsement in Ontario car insurance that covers damage to vehicles you don’t own, like rental cars or borrowed vehicles. It lets you use your own policy to pay for physical damage to non-owned vehicles, often replacing the need for expensive rental company insurance.
Here, we’ll briefly explain how OPCF 27 works, what it covers, and what it does not.
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OPCF 27 is an optional endorsement available to car insurance customers in Ontario. Its full title is “Liability for Damage to Non-Owned Automobile(s), and Other Coverages When Insured Persons Drive, Rent or Lease Other Automobiles.”
To paraphrase that, OPCF 27 provides coverage when an insured person is driving a vehicle they don’t own. An “insured person,” in this case, means the holder of the policy to which OPCF 27 is attached, plus their spouse and any drivers named on the policy.
The typical use of OPCF 27 is to cover damage to rental cars, but it also applies to other vehicles the insured drives but doesn’t own.
When someone drives a vehicle they don’t own, OPCF 27 allows them to use their own car insurance policy if that vehicle is damaged while in their care. OPCF 27 provides the following:
There is a limit of coverage under OPCF 27, which varies depending on the provider. For policies sold by Square One, OPCF 27 has a limit of $50,000 and is subject to a $500 deductible.
To sum up, the endorsement allows someone to use their own car insurance while they’re driving a vehicle that isn’t theirs. Without it, this wouldn’t be possible, and they’d have to secure coverage for the vehicle elsewhere. Rental companies always offer their own (expensive) coverage, and some credit cards cover damage to rental cars as well. However, neither of these options is as comprehensive or as easy as using one’s own car insurance. Adding OPCF 27 to a policy tends to be relatively cheap.
There are several important restrictions on non-owned vehicle coverage under OPCF 27:
When you rent a vehicle, the rental company will ask if you want to purchase a collision damage waiver, which removes the renter’s responsibility for (most) damage to the rental car. People who have coverage under OPCF 27 can decline the waiver.
If you do turn down the rental company’s coverage, they may ask you to provide proof that you have alternate insurance. The easiest way to offer proof is by showing your confirmation of insurance document. The confirmation lists your policy’s endorsements, including OPCF 27 if you have it. If the rental agent isn’t familiar with OPCF 27, you can provide the policy wordings as well. Square One customers can download either of these documents from their online account.
If you rent a car, you’ll need to have coverage from somewhere. If you have OPCF 27 or a similar endorsement in another province, you can decline the rental company’s Loss Damage Waiver. You may also have coverage through certain credit cards, but these are strictly for damage to the rental vehicle and don’t include extra third-party liability coverage or other benefits — your own car insurance policy will almost always be the best if it’s an option for you.
The rental car coverage endorsement OPCF 27 typically costs between $50 and $100 per year, but this amount varies based on the policyholder’s details as well as the insurance provider.
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About the expert: Daniel Mirkovic
A co-founder of Square One with 25 years of experience in the insurance industry, Daniel was previously vice president of the insurance and travel divisions at the British Columbia Automobile Association. Daniel has a bachelor of commerce and a Master of Business Administration (MBA) from the Sauder School of Business at the University of British Columbia. He holds a Canadian Accredited Insurance Broker (CAIB) designation and a general insurance license level 3 in BC, Alberta, Saskatchewan, Manitoba and Ontario.
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