Bad Credit

How to Improve Your Credit Score Fast

Practical steps to boost your credit score before applying for a mortgage.

8 min readUpdated April 2026
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Key Takeaways

  • 1Check your credit report for errors first
  • 2Get on the electoral roll
  • 3Reduce credit utilisation below 30%
  • 4Some improvements can show in weeks

Understanding Your Credit Score

Your credit score is a number that summarises your creditworthiness. Lenders use this alongside your full credit report to assess risk. A higher score gives you access to better mortgage rates.

Step 1: Check Your Credit Reports

Start by checking your credit reports with all three main agencies: Experian, Equifax, and TransUnion (via Credit Karma). Different lenders check different agencies.

Use a free service like CheckMyFile to see all three credit reports in one place. They offer a 30-day free trial.

Step 2: Get on the Electoral Roll

This is one of the quickest wins. Being registered to vote at your current address helps lenders verify your identity and address.

How Long Will Improvement Take?

Some changes show within 1-2 months (reducing utilisation, getting on electoral roll). Others take longer - negative marks like missed payments stay on your file for 6 years but their impact reduces over time.

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