What Credit Score Do You Need for a Mortgage in the UK? (2026 Guide)
Last updated: May 2026 | Reading time: 7 minutes
I spent months thinking I needed a perfect credit score to get a mortgage. I obsessed over the number. Checked it constantly. Stressed every time it moved.
Then I found out UK lenders don’t even use the score you see on ClearScore or Credit Karma. They run their own internal scoring model on your credit file data. The number you’ve been watching might not be what your lender sees at all.
Here’s what actually matters — and what you can do right now to improve your chances.
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There is no single magic number that unlocks a UK mortgage. This surprises most people.
In the UK, there are three credit reference agencies — Experian, Equifax, and TransUnion. Each one uses a completely different scoring scale. And most mortgage lenders don’t directly use any of their scores at all. They pull your credit file data and run it through their own internal model.
What that means in practice: two people with identical Experian scores could get completely different outcomes from the same lender. Because the score is a signal — not the decision.
What lenders actually look at
Your credit score is one input. Lenders also assess: your income and how stable it is, the size of your deposit, your existing monthly commitments, your debt-to-income ratio, how long you’ve been at your current address and job, and whether you’re on the electoral roll. A strong score with a 5% deposit is a harder sell than a fair score with a 25% deposit.
The Three UK Credit Score Scales Explained
Each agency uses a different range. Here’s what the numbers mean and what you need for a realistic mortgage application.
Experian — scores 0 to 999
- 961–999 = Excellent — best rates, widest choice of lenders
- 881–960 = Good — strong position, most mainstream lenders
- 721–880 = Fair — some options, may face higher rates
- 561–720 = Poor — limited options, specialist lenders only
- 0–560 = Very Poor — most mainstream lenders will decline
Check free at MSE Credit Club (moneysavingexpert.com/credit-club). For a mainstream mortgage, aim for 721+ as a starting point — ideally 881+.
Equifax — scores 0 to 700
- 466–700 = Excellent
- 420–465 = Good
- 380–419 = Fair
- 280–379 = Poor
- 0–279 = Very Poor
Check free at ClearScore (clearscore.com). Aim for 420+ for mainstream mortgage options.
TransUnion — scores 0 to 710
- 628–710 = Excellent
- 604–627 = Good
- 566–603 = Fair
- 551–565 = Poor
- 0–550 = Very Poor
Check free at Credit Karma (creditkarma.co.uk). Aim for 566+ as a minimum.
Find out what to fix first
The free AI Credit Score Roadmap gives you a personalised action plan based on your current score and mortgage target. Takes 60 seconds.
Get My Free Roadmap →Can You Get a Mortgage With a Low Credit Score?
Yes — but the options narrow and the rates go up.
Mainstream lenders like Barclays, Halifax, HSBC, Lloyds, NatWest, and Nationwide typically prefer applicants in the good to excellent range. Below that, your options shift to specialist lenders who accept lower scores but charge higher interest rates.
- ✅ Excellent score: Best rates, widest lender choice, lowest deposit requirements
- ✅ Good score: Most mainstream lenders, competitive rates, standard terms
- ⚠ Fair score: Some mainstream lenders with a larger deposit, or specialist lenders at higher rates
- ⚠ Poor score: Specialist lenders only, significantly higher rates, larger deposit usually required
- ❌ Very poor score: Most lenders will decline — focus on rebuilding before applying
The deposit size changes everything
A 25% deposit with a fair credit score can get you through the door at lenders who’d reject the same person with a 5% deposit. The lower your score, the larger the deposit you’ll need to compensate. If your score is below good, focus on building your deposit alongside improving your credit — both together is much stronger than either alone.
What Hurts Your Mortgage Application Beyond the Score
These things can cause a rejection even if your score looks reasonable:
Not being on the electoral roll
Lenders use it to verify your identity and address. Not being registered is an immediate red flag. Register at gov.uk/register-to-vote — takes 5 minutes.
Address mismatch across accounts
If your bank, credit file, and electoral roll all show different addresses, lenders can’t verify who you are. Make sure everything matches your current address.
Recent missed payments
A missed payment from 4 years ago hurts far less than one from 6 months ago. Lenders weight recent behaviour much more heavily than old history.
High credit utilisation
Using more than 30% of your available credit limit is a negative signal. Pay cards down before applying — and pay before the statement date, not just the due date.
Multiple credit applications recently
Each full credit application leaves a hard search visible to lenders for 12 months. Multiple applications in a short window looks like financial desperation. Stop applying for new credit at least 6 months before a mortgage application.
How to Improve Your Credit Score Before Applying
If your mortgage is 6-12 months away, these are the highest-impact actions in order of speed.
- 📅 Do today: Register on the electoral roll. Set up direct debits for every account minimum. Check all three credit files for errors.
- 📅 Month 1–2: Dispute any errors found — agencies have 28 days to investigate. Pay down credit card balances below 30% of the limit.
- 📅 Month 2–6: Consistent on-time payments stacking up. No new credit applications. Keep utilisation low.
- 📅 Month 6+: Use Experian Boost — links subscription payments like Netflix and Spotify to your Experian file. Average improvement is around 13 points at no cost.
- 📅 Before applying: Use soft search eligibility checkers to see which lenders you’re likely to get approved with — before any hard searches go on your file.
Read the full guide: How to Improve Your Credit Score Fast in the UK →
Use a Mortgage Broker — Not Just a Lender
This matters more than most people realise.
A whole-of-market mortgage broker can see which lenders are most likely to approve your specific profile — without leaving hard searches on your file. They know which lenders are flexible on score, which weight deposit heavily, and which ones accept CCJs or defaults.
Going direct to a single lender and getting rejected leaves a hard search on your file and narrows your options. A broker finds the right match first. For anyone with a less-than-perfect credit profile this is not optional — it is the smart move.
Want a structured 90-day credit repair plan?
The Credit Repair Blueprint gives you a week-by-week action plan covering disputes, utilisation, payment strategy, and history building — structured around getting mortgage-ready.
Get the Blueprint — £17 →Frequently Asked Questions
What credit score do I need for a mortgage in the UK?
There is no single number — UK lenders run their own internal scoring models. As a guide, aim for 881+ with Experian, 420+ with Equifax, or 604+ with TransUnion for mainstream lenders. But your deposit size, income, and payment history matter just as much as the score itself.
Can I get a mortgage with a fair credit score in the UK?
Yes — especially with a larger deposit. A 25% deposit with a fair score gives you access to lenders who’d decline the same person with 5% down. A whole-of-market mortgage broker can tell you which lenders are most likely to approve your specific profile without leaving hard searches on your file.
Does checking my credit score affect my mortgage application?
No. Checking your own score is a soft search — completely invisible to lenders. Only hard searches from actual credit applications show on your file. Check your score as often as you want — it won’t affect anything.
How long before applying for a mortgage should I start improving my credit?
Ideally 6-12 months. Register on the electoral roll and dispute any errors immediately — those can show results in 4-8 weeks. Allow 3-6 months of consistent on-time payments to compound. Stop all new credit applications at least 6 months before you plan to apply.
Can I get a mortgage with a CCJ or default in the UK?
Yes — through specialist lenders, though rates will be higher. The older the CCJ or default, the less impact it has. Some specialist lenders accept CCJs if they are over 12-24 months old and have been satisfied (paid). A whole-of-market broker is essential in this situation — they know which lenders are most flexible.
Which credit reference agency do mortgage lenders use in the UK?
Different lenders use different agencies — some use one, some use two, some use all three. Barclays uses Equifax. Halifax uses Experian. Because you don’t know which your lender will use, check all three files before applying. Errors on one won’t appear on another. All three are free to check: MSE Credit Club (Experian), ClearScore (Equifax), Credit Karma (TransUnion).
Related Guides
- How to Improve Your Credit Score Fast in the UK
- What Is a Good Credit Score in the UK?
- What Hurts Your Credit Score the Most?
- How to Dispute Errors on Your Credit Report
- How to Improve Your Credit Score — Complete Guide
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Get My Free Roadmap →Disclaimer: This article is for informational and educational purposes only and does not constitute financial advice. Mortgage eligibility depends on individual circumstances and lender criteria. For regulated mortgage advice contact a whole-of-market mortgage broker. DebtShift is not regulated by the FCA.