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Why did my premium increase after a vehicle change?

For Marshmallow customers who’ve changed their car and want to know why this might cause a premium increase.

Updated over a week ago

Why Changing Your Vehicle Can Increase Your Premium

When you update your policy with a new car, Marshmallow recalculates your premium based on the details of the new vehicle. This recalculation often results in a price increase due to how insurance risk is assessed.


Factors That Influence Premiums After a Vehicle Change

Several aspects of the new vehicle can contribute to a higher insurance premium:

1. Vehicle Value

  • Higher-value cars cost more to repair or replace, increasing the risk for insurers.

2. Engine Size and Performance

  • Cars with larger engines or faster acceleration are often considered riskier to insure.

3. Safety and Security Features

  • A lack of modern safety or anti-theft features may increase your premium.

4. Car Type and Usage

  • Sports cars, high-end models, or cars commonly involved in accidents or thefts are flagged as higher risk.

5. Insurance Group Rating

  • All cars in the UK are assigned an insurance group (1 to 50). The higher the group, the more expensive the insurance.

Example: Switching from a 2012 hatchback to a 2022 SUV might increase your premium due to the higher vehicle value, advanced electronics (costlier to repair), and increased theft risk.

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