How to Check Your Credit Score for Free (UK)

Before you do anything else about a mortgage — before you talk to a broker, before you apply anywhere, before you worry about whether your credit is good enough — check your credit file. All three of them.

This is the foundation. You need to know what lenders will see when they look at you. And it's completely free.

The Three Credit Reference Agencies

The UK has three main credit reference agencies (CRAs). Each maintains a separate file on you, and each uses a different scoring system:

Experian

Score range: 0–999

• 961–999: Excellent
• 881–960: Good
• 721–880: Fair
• 561–720: Poor
• 0–560: Very poor

How to check for free: Download the Experian app (you get a free Experian account with your score and basic report). For a more detailed free view, use MoneySavingExpert's Credit Club, which shows your full Experian report at no cost.

Equifax

Score range: 0–1000

• 811–1000: Excellent
• 671–810: Good
• 531–670: Fair
• 439–530: Poor
• 0–438: Very poor

How to check for free: ClearScore provides your Equifax credit score and full report for free. Sign up at clearscore.com. It's genuinely free (they make money from showing you product recommendations, but you're not obliged to click anything).

TransUnion

Score range: 0–710

• 628–710: Excellent
• 604–627: Good
• 566–603: Fair
• 551–565: Poor
• 0–550: Very poor

How to check for free: Credit Karma provides your TransUnion score and report for free. Sign up at creditkarma.co.uk. Same business model as ClearScore — free access, funded by product recommendations.

What to Look At (Beyond the Score)

Your credit score is a summary number. It's useful as a quick indicator, but mortgage lenders look at the underlying data. Here's what to focus on:

Personal Details

Check that your name, date of birth, and current address are correct. If you're registered at the wrong address, or your name is slightly wrong, it can cause matching problems.

Electoral Roll

Confirm you're registered to vote at your current address. This is one of the strongest identity verification signals for lenders. If you're not registered, do it now at gov.uk/register-to-vote.

Account Information

Every credit account you have (or have had in the last 6 years) should be listed. This includes:

• Credit cards
• Personal loans
• Car finance
• Mortgages
• Mobile phone contracts
• Buy now, pay later accounts (some now report)
• Overdrafts

For each account, check:

• Is the balance correct?
• Is the payment history accurate?
• Are closed accounts showing as closed?
• Are settled debts marked as settled?

Adverse Credit Markers

These are the big ones for mortgage applications:

• Defaults — check the date, amount, and whether they're marked as satisfied
• CCJs — check the date, amount, and satisfaction status
• Bankruptcy/IVA — should show completion if applicable
• Missed payments — shown month by month for each account
• Repossessions — if applicable

Financial Associations

If you've ever had a joint financial product with another person (joint account, joint mortgage, joint loan), you're "financially associated" with them. Their credit history can affect your applications. Check who you're associated with, and if an old association is no longer relevant (for example, with an ex-partner), apply to have it removed.

Hard Searches

Every time you apply for credit, the lender records a "hard search" on your file. Multiple hard searches in a short period can suggest financial distress. Check that all searches on your file are ones you recognise and authorised.

How to Dispute Errors

Errors on credit files are more common than people realise. Common mistakes include:

• Accounts that aren't yours (possible identity fraud, or a matching error)
• Incorrect balances on accounts
• Payments marked as missed when they were paid on time
• Debts shown as unsettled when they've been paid
• Incorrect personal details
• Old financial associations that should have been removed

The Dispute Process

1. Identify the error — note exactly what's wrong, on which account, and on which agency's report
2. Gather evidence — bank statements showing payments were made, letters confirming debt settlement, etc.
3. Raise a dispute — each agency has an online dispute process:
   • Experian: Through your account or the Experian app
   • Equifax/ClearScore: Through the ClearScore dispute function
   • TransUnion/Credit Karma: Through the Credit Karma dispute function
4. The agency investigates — they contact the creditor and ask them to verify the data. Under the Consumer Credit Act, they must respond within 28 days.
5. Resolution — the data is either corrected or confirmed as accurate. If confirmed but you still disagree, you can add a Notice of Correction.

Notice of Correction

If you can't get an error fixed, or if accurate data needs context (for example, missed payments during a period of illness), you can add a Notice of Correction to your credit file. This is a short statement (up to 200 words) that's shown to any lender who views your file.

Lenders must read it before making a credit decision. It can't change the data, but it can provide important context.

Your Statutory Right to See Your Data

Under UK data protection law (UK GDPR), you have a legal right to see all personal data held about you by any organisation, including credit reference agencies. This is called a Subject Access Request (SAR).

The free credit checking services above give you your credit report, which is what lenders see. But if you want the full data file (which may include additional information), you can submit a SAR to each agency. They must respond within one month.

In practice, the free services provide everything most people need.

How Often Should You Check?

• Before applying for a mortgage: Essential. Check all three at least 2–3 months before you plan to apply, so you have time to fix any errors.
• Monthly while building credit: Most free services update monthly. A quick check ensures nothing unexpected has appeared.
• After settling a debt or paying a CCJ: Confirm the change is reflected on your file. If it's not, chase it.
• After any change of address: Make sure your new address is correctly recorded.

What Your Credit Score Doesn't Show

Lenders also assess information that isn't on your credit file:

• Your salary and income — from payslips and bank statements
• Your spending habits — from bank statements
• Your savings — evidence of financial responsibility
• Your employment history — stability matters
• The property details — valuation, location, condition

A good credit score doesn't guarantee a mortgage, and a poor one doesn't prevent it. The score is one piece of a larger puzzle.

Practical Steps

1. Sign up for ClearScore (Equifax), Credit Karma (TransUnion), and the Experian app or MSE Credit Club (Experian)
2. Check all three reports and note any differences between them
3. Look for errors — incorrect personal details, wrong balances, misrecorded payments
4. Dispute any errors through each agency's dispute process
5. Check your financial associations — remove any that are no longer relevant
6. Register on the electoral roll if you aren't already
7. Set a reminder to check monthly while you're preparing for a mortgage application

The Bottom Line

Checking your credit is free, takes 30 minutes, and is the single most important first step in any mortgage journey. You might find errors that are dragging your score down, adverse markers you'd forgotten about, or financial associations that need removing.

Knowledge is power. Know what's on your file, fix what you can, and you'll be in the strongest position when you apply.

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This is educational content, not financial advice. Your situation is unique — speak to a qualified mortgage broker before making any decisions.