What’s The Best Insurance Option When Borrowing A Car?
For occasional use, temporary car insurance is the quickest and simplest option. For regular borrowing, being added as a named driver on the owner’s policy is usually cheaper long-term.
Most UK car insurance policies do not automatically cover other drivers, even with the owner’s permission. Understanding your options before you get behind the wheel keeps you legal and avoids expensive mistakes.
Never assume you are covered on someone else’s car. The Driving Other Cars extension now exists on only around 2% of UK policies, and even then it is third-party only. Arrange temporary insurance for one-off borrowing or get added as a named driver for regular use.
Get covered before you drive rather than finding out the hard way.
Can you use the owner’s existing insurance to borrow their car?
Only if the owner’s policy specifically includes “any driver” cover or lists you as a named driver. Most UK car insurance policies do not automatically cover other drivers.
Any driver policies
Some policies allow any licensed driver to use the vehicle with the owner’s permission. These “any driver” policies are uncommon and cost significantly more than standard cover, so most car owners don’t have one.
Even where any driver cover exists, it usually provides the same level of protection as the main policy. Any claim made by a guest driver still affects the policyholder’s record.
The Driving Other Cars myth
Some drivers assume their own comprehensive policy includes a Driving Other Cars (DOC) extension that covers them on other people’s vehicles. This was once common, but most insurers have removed it.
Only around 2% of UK comprehensive policies still include DOC cover, and even then it only provides third-party protection. According to the ABI, you should never assume DOC cover exists without checking your policy documents.
When is temporary car insurance the best option?
Temporary insurance is the best choice for one-off or short-term borrowing. It takes minutes to arrange, starts immediately, and doesn’t affect the car owner’s policy or no-claims bonus.
How temporary cover works
You buy a standalone policy online in your own name, covering you to drive a specific vehicle for a set period. Most providers offer cover from a single day up to 28 days, and the policy starts as soon as you complete the application.
Because it’s a separate policy, any claims you make go against your temporary cover, not the owner’s annual insurance. The owner’s no-claims bonus stays completely protected.
What does temporary insurance cost
Costs vary depending on your age, driving history, and the vehicle. A single day of cover typically costs £15 to £50 or more, while a week runs £50 to £150.
Young drivers and higher-value vehicles cost more. Comparing quotes from several providers is the fastest way to find the best rate for your situation.
When should you be added as a named driver instead?
Named driver cover makes more sense when you borrow the same car regularly, because the annual cost is usually lower than repeated temporary policies.
How named driver cover works
The car owner contacts their insurer and adds you to their annual policy. The cost depends on your age, experience, and driving history. For an experienced driver with a clean licence, it might add £30 to £80 per year.
For a young or inexperienced driver, the additional premium could be several hundred pounds. In that case, temporary insurance for occasional use may actually be cheaper.
The fronting risk
The main driver on the policy must genuinely be the person who drives the car most. If you use the car more than the policyholder, you should be the main driver, not a named driver.
Listing someone else as the main driver to get a cheaper premium is fronting, which is insurance fraud. If the insurer discovers it, they can void the policy entirely, leaving both drivers uninsured and any claims unpaid.
How do the three options compare?
Each option suits a different borrowing situation. The comparison below summarises the key differences to help you choose.
| Temporary insurance | Named driver | Any driver policy | |
| Best for | One-off or short-term use | Regular borrowing of the same car | Multiple different drivers |
| Typical cost | £15 to £50 per day | £30 to £80+ per year (added to existing premium) | Higher annual premium for the policy |
| Cover level | Usually comprehensive | Same as the main policy | Same as the main policy |
| NCB impact on owner | None (standalone policy) | Claim affects owner’s NCB | Claim affects owner’s NCB |
| How quickly arranged | Minutes (online) | Days (owner contacts insurer) | Already included if the policy has it |
| Who arranges it | The borrower | The car owner | The car owner |
For occasional borrowing
If you need the car for a day trip, a weekend, or a one-off errand, temporary insurance is almost always the better choice. It protects the owner’s no-claims bonus and requires no changes to their policy.
For regular borrowing
If you drive the same car several times a month, named driver cover is usually cheaper over a full year. The break-even point depends on your profile, but once temporary insurance costs exceed the named driver premium, it makes sense to switch.
What should you check before borrowing a car?
Never drive a borrowed car without confirming you have valid insurance. A few minutes of checking protects you from a criminal offence and potentially devastating financial consequences.
Insurance checks
Ask the owner to check their policy documents for the “permitted drivers” section. Look for “any driver” or “any named driver” wording in the policy schedule.
Check your own policy for a DOC extension, but do not assume it exists. If there is any doubt, arrange your own temporary cover rather than risking driving uninsured.
Vehicle checks
Confirm the vehicle has a valid MOT (you can check online in seconds). Make sure the road tax is current and that the car is roadworthy with working lights, tyres, and brakes.
Driving without valid insurance is a criminal offence carrying a £300 fixed penalty and six points on your licence. At court, the fine is unlimited with possible disqualification.
Frequently Asked Questions (FAQs)
Almost certainly not. Most UK comprehensive policies no longer include Driving Other Cars (DOC) cover. Only around 2% still do, and even then it provides third-party only protection. Check your policy wording carefully rather than assuming you’re covered.
For a single use, temporary insurance for one day is usually the cheapest option at around £15 to £50. For regular use, being added as a named driver on the owner’s annual policy is more cost-effective over time.
Yes. Because temporary insurance is a separate standalone policy in your name, any claims you make do not appear on the car owner’s policy and do not affect their no-claims discount.
No. Only the policyholder can add named drivers to their policy. You would need to ask the car owner to contact their insurer and request the change.
You cannot legally drive an uninsured vehicle on public roads. You would need to arrange temporary insurance in your name before driving it. Driving without any insurance is a criminal offence regardless of the circumstances.
Most providers issue cover within minutes of completing an online application. Cover can often start immediately, making it practical even for last-minute borrowing.
No. Temporary insurance is a completely separate policy. It does not appear on your annual insurance record and does not affect your own no-claims bonus unless you make a claim on the temporary policy.
It depends on the cost. If temporary insurance costs £30 per trip and you borrow the car 12 times a year, that’s £360. If being added as a named driver costs £80 per year, named driver cover is significantly cheaper.