When you make a change to your insurance policy—like updating your car details, address, or licence type—your premium may go up. This is because your insurance is recalculated based on your new risk profile.

When you change any of your policy details, Marshmallow recalculates your premium using a pricing algorithm that considers your updated risk level. Common changes that trigger a recalculation include:

Example: If you move from a quiet rural village to a busy city centre, your premium may increase because urban areas tend to have higher accident and theft rates, making them riskier from an insurance perspective.

Some changes are associated with historically higher claim rates. For instance:

Increased risk means increased premiums.

If you initially provided inaccurate or incomplete information (e.g. incorrect No Claims Discount), correcting it can increase your premium. This ensures your premium reflects the true risk.

Marshmallow’s pricing system updates both your premium and any associated fees based on your new details and current pricing rules.

If you're on the Marshmallow Lightest or Essential plan, a £25 admin fee applies when you make a change to your policy.

As stated in Part 2: Your obligations in your Policy Wording document:

"Any changes, if accepted by us, will apply from the date indicated on your updated policy schedule or by an endorsement to your policy. In this case we will be entitled to vary the premium and terms for the rest of the period of insurance."

This means that whenever you update your policy, your premium and terms may change accordingly.