Skip to main content

Why did my premium increase after an address change?

This article is for Marshmallow policyholders who have moved to a new address and noticed that their car insurance premium has increased.

Updated over a week ago

Why your address matters for insurance pricing

Each postcode in the UK carries its own level of insurance risk. This risk level is based on data about:

  • The number of claims made in the area

  • Types of incidents (like theft, vandalism, and collisions)

  • Local traffic levels and road types

  • Weather-related risks and crime rates

If your new postcode has a higher risk profile than your old one, your insurance premium will increase—even if all your other details stay the same.

What is risk recalculation?

When you change a key policy detail like your address, Marshmallow will recalculate your premium using updated pricing models. This ensures your premium reflects the current level of risk.

Example: If you move from a low-risk village to a busy urban area with higher rates of theft or accidents, your premium may go up—even if you have never made a claim yourself.

Did this answer your question?