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How do I use a discount code when signing up?

This article is for new customers who want to apply a discount code during their Marshmallow car insurance purchase.

Updated this week

Where to enter your discount code

If you have a discount code, you can use it at the payment step of the sign-up journey on our website. You'll see a dedicated box for discount codes—just type it in before completing your payment.


What to check if your code doesn’t work

Make sure:

  • You've entered the code exactly as it appears (check for typos or extra spaces).

  • Your policy is one of our Original or Plus plans.

  • You’re buying directly from our website—not via a comparison site.

  • The code hasn’t expired or already been used.

If the code still doesn’t work, please contact us via in-app chat and we’ll help.


Important things to know

  • Discounts must be applied before purchase. We can't add them after your policy starts.

  • Only one discount per policy. Discount codes can’t be combined.

  • Not valid for Lightest or Essential plans. Codes only work with Original or Plus plans.

  • Each code may have an expiry date and usage limits.

  • Don’t share personal codes. If a code is unique to you, using it on another account may invalidate it.

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