How Car Insurers Calculate Your Premium
Updated Sep 29, 2026 · Daniel Moreau · 6 min read
Your age, car, location, and history all feed into the price.
What this article covers
Insurers estimate how likely you are to claim and how expensive claims might be.
Understanding the factors helps you see what you can change.
About you
- Age and driving experience
- Claims and conviction history
- Occupation in some markets
- Credit history where permitted
About the car
Value, repair costs, theft risk, performance, and safety features all matter. Insurance groups or ratings summarise these.
Where and how you drive
Postcode, parking location, annual mileage, and use (social, commuting, business) affect price.
Policy choices
Cover level, excess, add-ons, and named drivers change the premium. See our guide to lowering your premium.
Why the same driver gets different quotes
Every insurer weights these factors differently and targets different types of customer, so one company may treat your postcode or car as high risk while another does not. That is why quotes for identical cover can vary widely. Comparing several insurers — including some that do not appear on comparison sites — is one of the most effective ways to pay less. Always give accurate details: a cheaper quote based on wrong information can lead to a refused claim.
This is general insurance information, not legal, financial, or insurance advice. Coverage depends on your specific policy, insurer, and jurisdiction. Read your policy documents and speak with a licensed insurance agent or broker before making decisions.