UK Credit Score Guide 2026: Experian, Equifax, TransUnion Explained
How UK credit scoring actually works in 2025-26 — three credit reference agencies (Experian, Equifax, TransUnion), three different scoring scales, the actions that lenders really see, and the practical steps that lift a UK credit score by 50-150 points within 90 days.
By FreeFinCalc Editorial · Updated April 9, 2026 · UK 2025-26 tax year data
UK credit scoring is fundamentally different from US FICO scoring in two important ways: there are three different scoring scales (one per credit reference agency), and there is no single number that lenders actually use. Banks and lenders run their own internal scoring models on data from one or more of the three credit reference agencies (CRAs) — Experian, Equifax and TransUnion. The "credit scores" you see on Experian, Clearscore, Credit Karma or MoneySavingExpert\u2019s Credit Club are educational scores showing roughly how the data looks, not the score the lender will use. The actual data on your credit file matters far more than the headline score: payment history, electoral roll registration, credit utilisation, credit age, recent applications, and any defaults or CCJs.
The Three UK Credit Reference Agencies
UK lenders pull credit data from one or more of three CRAs. Each CRA has its own database, scoring scale, and band labels. Most major lenders use Experian or Equifax; TransUnion is smaller but used by Barclays and some specialist lenders.
| CRA | Scoring scale | Excellent band | Good band | Free score via |
|---|---|---|---|---|
| Experian | 0-999 | 961-999 | 881-960 | Experian.co.uk (free) |
| Equifax | 0-1000 | 811-1000 | 671-810 | Clearscore (free) |
| TransUnion | 0-710 | 628-710 | 604-627 | Credit Karma (free) |
What UK Lenders Actually Look At
The headline credit score is a summary, but the underlying data is what lenders use. The most important factors in 2025-26: 1) Payment history — every late payment, default, CCJ or IVA is recorded for 6 years and is the single biggest factor. 2) Credit utilisation — using more than 30% of available credit limits hurts your score; under 10% is optimal. 3) Electoral roll registration — being on the electoral roll at your current address is essential for most lenders; missing voters are often automatically declined. 4) Length of credit history — longer is better; the average age of your accounts matters. 5) Recent applications (hard searches) — multiple applications in a short period look risky and lower scores by 5-25 points each. 6) Address stability — frequently moving address is a red flag. 7) Existing debts and DTI — total debt burden and minimum monthly payments.
Score Bands by CRA (2025-26)
Approximate score bands published by each CRA. These are educational labels, not lender thresholds.
| Band | Experian | Equifax | TransUnion |
|---|---|---|---|
| Excellent | 961-999 | 811-1000 | 628-710 |
| Good | 881-960 | 671-810 | 604-627 |
| Fair | 721-880 | 531-670 | 566-603 |
| Poor | 561-720 | 439-530 | 551-565 |
| Very Poor | 0-560 | 0-438 | 0-550 |
8 Fast Actions to Lift Your UK Credit Score
1) Register on the electoral roll at your current address. This single action often adds 50-100 points within a month. 2) Bring credit utilisation under 30% (ideally 10%) before each statement date. 3) Pay every bill on time, every month — set up direct debits for at least the minimum on every credit card and loan. 4) Sign up for Experian Boost — links your bank account to add Council Tax, Netflix and other recurring bill payments to your Experian file. Average lift around 13 points. 5) Avoid making multiple credit applications close together — space them out by at least a month. 6) Check your credit report for errors at all three CRAs (free statutory reports available) and dispute anything wrong. 7) Use a credit-builder card (Aqua, Capital One Classic, Vanquis) responsibly for 6-12 months if you have thin or poor credit. 8) Do not close old credit accounts even if unused — closing them shortens your average credit age and removes available credit, both of which hurt the score.
How Long Does It Take to Improve a UK Credit Score?
Faster than most people think. Electoral roll registration shows up within 4-6 weeks and can lift a score by 50-100 points immediately. Reducing credit utilisation can lift a score within one statement cycle (30-45 days). Disputing and removing inaccurate negative items takes 28 days for the CRA to investigate. Late payments take longer to recover from — they remain on file for 6 years but their impact reduces dramatically over time. A typical improvement trajectory for someone starting at 500 and following the 8-step plan: month 1 +75 (electoral roll), month 2 +30 (utilisation), month 3 +15 (Experian Boost), months 4-12 +30 (account ageing and on-time payments), reaching around 650 within a year. A clean 6-year credit history with low utilisation typically reaches 850+ on Experian.
Frequently Asked Questions
What is a good credit score in the UK?+
It depends on which credit reference agency you check with. On Experian (0-999) good is 881-960 and excellent is 961-999. On Equifax (0-1000) good is 671-810 and excellent is 811-1000. On TransUnion (0-710) good is 604-627 and excellent is 628-710. These labels are set by each CRA for educational purposes — actual mortgage and credit card lenders run their own scoring models on the underlying data and do not use these score thresholds directly. A clean payment history, low utilisation and electoral roll registration matter more than the headline score.
How can I check my credit score for free in the UK?+
Free options for each CRA: Experian.co.uk (basic free score, free credit report, paid for live monitoring); Clearscore.com (free Equifax score and credit report indefinitely); Credit Karma (free TransUnion score and credit report indefinitely). MoneySavingExpert Credit Club is also free and shows Experian data with personalised eligibility checks. By law you can also get free statutory credit reports directly from each CRA once a year if you prefer the raw report format. Avoid paying for credit scores — every CRA offers a free option in 2026.
Why are my Experian, Equifax and TransUnion scores different?+
Each CRA has its own database of credit data, its own scoring formula, and its own scoring scale. Lenders report your account activity to one, two, or all three CRAs at their discretion. So if Lender A reports only to Experian and Lender B reports only to Equifax, your two files contain different information and produce different scores. The differences in headline scores can also be misleading because the scales themselves are different — 880 on Experian (out of 999) is roughly equivalent to 700 on Equifax (out of 1000) or 580 on TransUnion (out of 710), even though the numbers look very different.
How long do defaults and CCJs stay on my credit report?+
Defaults remain on your credit report for 6 years from the date the account first defaulted, regardless of whether you eventually paid the debt. County Court Judgments (CCJs) also stay for 6 years from the judgment date — UNLESS you pay the CCJ in full within 28 days, in which case it can be removed entirely (not just marked as satisfied). Bankruptcy and Individual Voluntary Arrangements (IVAs) stay for 6 years. Late payments stay for 6 years but their impact fades dramatically over the period. After 6 years, all of these items must be removed by the CRAs by law.
What is Experian Boost?+
Experian Boost is a free service that lets you add positive payment data from your bank account to your Experian credit file. It connects via Open Banking and looks for regular payments to council tax, Netflix, Spotify, Amazon Prime, Disney+, energy suppliers, mobile phone providers, savings accounts, and others. These payments are added to your Experian credit file and counted toward your Experian score. The average reported lift is around 13 points. Boost is free, has no downside (only positive data is added — missed payments are not), and only affects Experian (not Equifax or TransUnion). Sign up at Experian.co.uk.
Does checking my own credit score lower it?+
No. Checking your own credit score is recorded as a "soft search" on your credit file, which is invisible to lenders and has zero impact on your score. You can check your own score as often as you like — daily, even — without any negative effect. Hard searches are only created when you formally apply for credit (a credit card, loan, mortgage), and even those only lower your score by 5-25 points temporarily. Soft searches also include eligibility checks done by comparison sites and "rate quote" tools.
How can I improve my credit score from poor to good?+
The fastest path: 1) Register on the electoral roll at your current address (often adds 50-100 points within a month). 2) Reduce credit card balances to under 30% of credit limit before each statement date. 3) Set up direct debits for every bill so you never miss a payment. 4) Sign up for Experian Boost. 5) If you have thin credit, get a credit-builder card and use it lightly for 6-12 months. 6) Dispute any incorrect items on your credit report. 7) Avoid making multiple credit applications. With consistent application, going from 500 to 700 within 12 months is realistic for someone with no recent serious negatives.
Will being on the electoral roll improve my credit score?+
Yes — significantly. Electoral roll registration is one of the simplest and most impactful actions for a UK credit score. Lenders use the electoral roll to verify your name and address, and many lenders automatically decline applicants who are not on the electoral roll because of fraud risk. Registering at your current address can lift a credit score by 50-100 points within 4-6 weeks of the change appearing on your file. If you cannot register on the electoral roll (some non-UK citizens cannot), ask a CRA to add a Notice of Correction explaining why.
Sources & Disclaimer
Experian credit score bands: experian.co.uk credit score guide. Equifax credit score bands: clearscore.com Equifax score guide. TransUnion credit score bands: creditkarma.co.uk score guide. Statutory credit reports: each CRA\u2019s statutory report ordering page. Default and CCJ retention periods: Information Commissioner\u2019s Office (ICO) credit reporting guidance. Experian Boost: Experian Boost product page. Open Banking (used by Boost): Open Banking Implementation Entity standards. This article is for educational purposes only and is not personalised financial advice.