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What’s the difference between third party and fully comprehensive car insurance?

When choosing car insurance, it’s important to understand the difference between comprehensive and third party insurance and what level of cover is right for your needs. The most common policies in the UK are third-party and fully comprehensive insurance. While both are legally valid, many insurance policies differ significantly in terms of coverage, cost, and protection.

In this guide, we break down the comprehensive vs third party insurance, so you can confidently decide which suits you best.

What is Third-party Insurance?


Third-party insurance covers any damage done to another's vehicle or property in a crash and injury to other road users. It is the minimum level of cover that you are allowed by law. This means that even if your car is stolen, vandalised or damaged in an accident you caused, you will need to pay for repairs or replacement out of pocket.

This can leave you quite vulnerable, especially if you have an expensive car or are inexperienced. As a result, many people opt for theft policies that offer better level of coverage. However, while it offers less cover, third-party car insurance still meets the legal requirement to be on the road.

Third party insurance is best for:

  • Drivers of older or low-value cars
  • People seeking basic level protection
  • High-risk drivers who may find other policies unaffordable

While third-party insurance might seem like a cost-effective option upfront, it’s worth considering the potential replacement costs and out-of-pocket expenses if something happens to your vehicle. Before choosing, think about your car’s value, your driving habits, your driving history and whether you’d feel more secure with theft cover and broader coverage. You should compare quotes across different policy types to help you find the best balance between protection and affordability.

What is Fully Comprehensive Car Insurance?


Fully comprehensive car insurance (often called "fully comp") provides extensive comprehensive coverage that includes everything offered by third-party policies, plus significant additional protection. Not only does it cover damage to other vehicles and property, but it also protects your own car against accidents, theft, fire, and vandalism - even if you're at fault or the cause is unclear.

Many policies go further by including personal injury compensation and coverage for belongings stolen from your vehicle. Some insurers extend protection to include accidental damage, windscreen repairs, and even temporary permission to drive other cars.

However, these extras vary between providers, so it's crucial to check your specific policy documents to understand exactly what's covered.

Fully comprehensive car insurance is best for:

  • Those with new or high-value cars
  • People who drive frequently or long distances
  • Drivers looking for complete financial protection

This top-tier insurance offers peace of mind that third-party cover simply can't match. It’s considered the best level of protection and often includes add-on covers like zero depreciation cover, legal assistance, and breakdown recovery.

Which is more expensive?


It might surprise you to learn that comprehensive cover isn’t always more expensive than third-party. In fact, due to the number of claims made on third-party insurance policies, insurers sometimes view comprehensive insurance policyholders as lower risk. This can lead to more competitive pricing for comprehensive cover and insurance costs , thanks to factors such as:

  • Fewer claims by comprehensive users
  • Higher premiums for party policies due to risk profile
  • Insurance providers rewarding responsible drivers

So, when making your choice between comprehensive and third party insurance, make sure you check all the available options as it might be possible to get a comprehensive car insurance policy at a cheaper or similar rate to third-party.

Choosing Between Comprehensive or Third Party Insurance


When deciding between comprehensive and third-party insurance, it’s important to understand exactly what each type covers. While third-party insurance meets the minimum legal requirement, it may not provide the financial protection you need in the event of an accident to cover losses . On the other hand, comprehensive cover includes a broader range of benefits, often at a similar or even lower price. Here's a side-by-side comparison to help you weigh your options:

Feature Third party insurance Comprehensive car insurance
Covers damage to others Yes Yes
Covers your own vehicle No Yes
Theft and fire protection No Yes
Personal belongings No Yes (depending on the policy)
Cover when not at fault Yes Yes
Cover when at fault No Yes
Add-on cover options Not available Available (varies by insurer)


If you’re still unsure whether to choose comprehensive or a third party policy, our comparison tools make it easy to find a policy that works for you. Compare quotes now and secure the right car insurance policy cover for your vehicle.

Factors Affecting Premium Rates


Several key factors influence how much you’ll pay for your vehicle insurance premium. Insurers consider your age, driving history, the type of vehicle you drive, and your location. Young or inexperienced drivers and those with previous claims or penalty points typically face higher premiums. The car’s value, engine size, and security features also affect the cost, high-performance or luxury vehicles often cost more to insure. Additionally, where you park your car overnight, your annual mileage, and even your occupation can play a role in setting your premium. Understanding these factors can help you make informed choices when comparing policies.

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