Credit Score Estimator United Kingdom — Experian, Equifax & TransUnion
Estimate your UK credit score using repayment history, utilisation, hard searches, and file age. See how local bureau conventions can influence the score bands used by Experian, Equifax, and TransUnion.
Understand how your credit score affects your borrowing power.
United Kingdom Credit Score Notes
UK credit scores are bureau-specific and often influenced by electoral-roll data, utilisation, payment history, and recent hard searches. The score number itself matters less than how your full file looks to a lender running an affordability assessment.
This version focuses on UK bureau conventions and local credit-building patterns rather than US FICO-style scoring systems.
UK-specific treatment for credit score: figures are framed in pounds, with British household or business wording and the assumptions commonly seen in PAYE, HMRC, mortgage, pension, and consumer-credit contexts.
Watch for UK markers in the page copy and inputs: HMRC, PAYE, National Insurance, pension contributions, stamp duty land tax, miles, APR, part-exchange, council tax, VAT, and GBP-based totals.
The result should be read as a United Kingdom estimate, so compare it with UK provider quotes, HMRC or GOV.UK guidance, lender affordability rules, devolved-nation differences, or regulated advice where needed.
Estimates only. 2026/27 HMRC rates.
Select the question that matches your situation.
Your credit score is a number that lenders use to assess how likely you are to repay debt. In the UK, Experian (0–999), Equifax (0–1000), and TransUnion (0–710) are the three credit reference agencies, each with its own scale. This calculator estimates an Experian-style score from the key factors lenders assess.
Your real score is calculated from your full credit file — every account, its monthly status history, and far more granular data than this estimator uses. Check the real thing free at Experian.co.uk, Equifax.co.uk, or TransUnion.co.uk.
UK credit reference agencies do not publish their exact weightings, so this estimator uses the widely quoted indicative split: payment history (~35%), credit utilisation (~30%), credit history length (~15%), credit mix (~10%), new hard searches (~10%). Payment history and utilisation dominate — that is where most people can make the biggest difference.
The UK has three credit reference agencies, each with its own scale: Experian (0–999), Equifax (0–1000), and TransUnion (0–710). Lenders use different agencies — your bank may check a different one than your mortgage broker — so your score can vary between them. They assess the same underlying factors.
Most credit score improvement comes from two things: perfect payment history going forward, and reducing credit card utilisation. Both can show results within 3–6 months.
Set up direct debits for at least the minimum payment on every account. On this estimator a single missed payment costs roughly 100–150 points on the Experian 0–999 scale, and it stays on your file for six years. There is no faster path to improvement than 12 consecutive months of on-time payments.
Aim to keep credit card balances below 30% of your limit. If you have a £10,000 limit, keep the balance below £3,000. Below 10% is even better for scoring purposes. Pay down balances before your statement date.
Avoid applying for new credit for at least 6 months. Use eligibility checkers first — most UK lenders and comparison sites run a soft search that only you can see and that never affects your score. Each hard search typically costs around 15–25 points and stays on your report for 12 months.
Your statutory credit report is free to access from every UK credit reference agency, and checking it is a soft search that never affects your score. Errors are common enough that it is worth checking all three main agencies — a lender may use any one of them.
Every UK credit reference agency must give you a copy of your statutory credit report free of charge — you request it under your right of access (Article 15 UK GDPR, Data Protection Act 2018), and there is no annual limit. Experian, Equifax, TransUnion and Crediva all compile statutory reports. For free ongoing monitoring, Experian offers a free account, ClearScore shows your Equifax data and Credit Karma shows your TransUnion data.
Accounts you don’t recognise (possible fraud or mistaken identity), defaults that were paid but not marked as satisfied, hard searches you did not authorise, incorrect personal details (a wrong address can cause matching errors), a missing electoral roll entry, and debts from previous names or addresses still linked to your file.
Raise the error with the credit reference agency. Under section 159 of the Consumer Credit Act 1974 it has 28 days to tell you whether it has removed or amended the entry. If it will not, you can require a Notice of Correction of up to 200 words to be added to your file. For disputed defaults, contact the original lender as well. If it stays unresolved, complain to the Financial Ombudsman Service, or to the ICO for data-accuracy issues.
Every credit application leaves a hard search on your file that reduces your score and is visible to other lenders for 12 months. Understanding searches helps you avoid unnecessary damage.
Hard searches (recorded when a lender assesses an actual application) affect your score and are visible to other lenders. Soft searches — checking your own report, eligibility checkers, and lenders’ pre-screening — are visible only to you and have no effect. Always confirm whether a quote or pre-approval check leaves a hard or a soft search before you authorise it.
UK providers such as Klarna, Clearpay, PayPal Pay in 3 and Zilch differ in what they record. Klarna has shared UK Pay in 3 and Pay in 30 data with Experian and TransUnion since 1 June 2022. Since 15 July 2026 BNPL (deferred payment credit) is FCA-regulated, so providers must run affordability checks. Multiple BNPL accounts with high balances can signal financial stress, and missed payments can be reported as arrears or defaults.
The UK has no “rate-shopping window” that merges several mortgage searches into one — each full application leaves its own hard search. The protection is the Decision in Principle: most UK lenders and brokers run it as a soft search, so you can test affordability without a footprint, and a hard search happens only at full application. Use a broker or soft-search DIPs to narrow the field, then apply to one lender.
Experian, Equifax, TransUnion, and the scoring factors explained
The three main credit reference agencies
Experian is the UK’s largest credit reference agency and uses a 0–999 scale. Equifax (0–1000) and TransUnion (0–710) are the other two agencies. Lenders subscribe to one or more of them, so your mortgage lender may check a different agency than your credit card issuer, and the score you see can differ between them — the underlying data and factors matter more than the headline number.
Experian score bands
| Score range | Band |
|---|---|
| 961–999 | Excellent — top rates and limits |
| 881–960 | Good — competitive rates |
| 721–880 | Fair — most mainstream products |
| 561–720 | Poor — higher rates, lower limits |
| 0–560 | Very Poor — limited options |
Practical steps to lift your credit score in 3, 6, and 12 months
3 months
- Set up direct debits for minimum payments on all accounts
- Pay down credit card balances to below 30% of limit
- Do not apply for any new credit
- Check your credit report for errors and dispute any found
6 months
- Six consecutive months of on-time payments will show significant improvement
- Pay balances in full (not just minimums) where possible
- Close unused credit cards if you have many (reduces credit mix complexity)
12+ months
- Defaults begin to show less impact as positive history accumulates
- Keep oldest credit accounts open (even with zero balance) to maintain history length
- One responsible credit account used and paid monthly is better than none
How to get your free credit report and dispute errors in the United Kingdom
Free credit report entitlements
There is no annual cap and no fee. Every UK credit reference agency must give you a copy of your statutory credit report free of charge, because you request it as a subject access request under Article 15 of the UK GDPR (as implemented by the Data Protection Act 2018) — this replaced the old paid statutory report. Four agencies compile UK statutory reports: Experian, Equifax, TransUnion and Crediva. Checking your own report is a soft search, so you can do it as often as you like without affecting your score. If you are refused credit, section 157 of the Consumer Credit Act 1974 lets you ask the lender which agency it used, provided you ask within 28 days of the decision. Free ongoing score monitoring is also available from Experian, ClearScore (Equifax data) and Credit Karma (TransUnion data).
How long items stay on your file
| Item type | Duration on file |
|---|---|
| Hard searches | 12 months (visible to lenders) |
| Soft searches | 12 months (visible only to you) |
| Late or missed payments | 6 years |
| Defaults | 6 years from the default date, paid or not |
| County Court Judgments (CCJs) | 6 years |
| Bankruptcy / IVA | 6 years from the start date, or until it ends if later |
| Debt management plan markers | 6 years |
Retention periods are those published in the Credit Reference Agency Information Notice (CRAIN) for lender decision-making. Defaults are normally registered after three to six months of missed payments, and paying one off marks it ‘satisfied’ rather than removing it.
How credit searches affect your score and what to know about Buy Now Pay Later
Hard searches
A hard search is recorded when you apply for credit and a lender pulls your credit file to assess the application. Each hard search reduces your score by roughly 15–25 points and is visible to other lenders for 12 months. Declined applications still leave a hard search on your file, which is why eligibility checkers — run as soft searches — are worth using first.
BNPL and credit scores
Buy Now Pay Later is increasingly visible on credit files. Klarna has shared UK Pay in 3 and Pay in 30 data with Experian and TransUnion since 1 June 2022, while other providers vary. Since 15 July 2026, BNPL — formally deferred payment credit — has been regulated by the FCA: providers must run affordability checks, Section 75 protection applies to purchases, and you can take complaints to the Financial Ombudsman Service. Multiple accounts and high balances can signal financial stress, and missed payments can be reported as arrears or defaults. Check each provider’s reporting policy before signing up.
Frequently askedFrequently asked questions
What is a good credit score in the United Kingdom?
On the Experian 0–999 scale, 721–880 is Fair, 881–960 is Good, and 961+ is Excellent. Many lenders approve applicants from the Fair band at standard rates, while scores in the Poor band (561–720) limit your options. Check your Experian score free at Experian.co.uk; ClearScore shows your Equifax data and Credit Karma shows your TransUnion data.
Does checking my own credit score affect it?
No. Checking your own credit score or credit report is a soft search and does not affect your credit score at all. Only hard searches (when lenders check your file in response to a credit application) reduce your score. You can check your score as frequently as you like through services like ClearScore, Credit Karma, or Experian without any impact.
How long does a missed payment affect my score?
A missed payment stays on your credit file for 6 years, and a default stays for 6 years from the default date whether or not you pay it off. However, its impact diminishes over time — a missed payment from 4 years ago has far less impact than one from 4 months ago. The most effective path to recovery is consistent on-time payments going forward. After 12–24 months of clean payment history, the impact of an older missed payment is significantly reduced.
What credit utilisation percentage is ideal?
All three UK credit reference agencies reward low credit utilisation. Under 30% of your total credit limit is considered good; under 10% is optimal for scoring purposes. High utilisation (above 60%) significantly damages your score. Note: this is the percentage of your total available limit across all credit cards, not just one card.
Where these figures come from
Credit-file rules on this page come from the credit reference agencies’ own published retention notice, the Consumer Credit Act 1974, MoneyHelper and the FCA for consumer-credit guidance, and the Financial Ombudsman Service for dispute resolution.
- How long data stays on your file — Credit Reference Agency Information Notice (CRAIN) — data retention periods.
- Free statutory credit report — Statutory credit report (Article 15 UK GDPR request).
- Correcting a wrong entry (28 days) — Consumer Credit Act 1974, section 159.
- Buy Now Pay Later regulation — FCA — Buy Now Pay Later (regulated from 15 July 2026).
- Credit & borrowing guidance — MoneyHelper — Credit.
- Dispute resolution — Financial Ombudsman Service.
Last checked: July 2026. Rates and thresholds are reviewed against the source of record each November, when annual adjustments for the following tax year are published.