What a UK credit score is and what it is not
A UK credit score is a number or rating produced by a credit reference agency from the information in your credit file. Lenders do not see a single universal score; they typically use their own affordability checks and may look at your report through one or more agencies. The score is a summary, not a verdict, and it can change as your file changes.
Your credit file contains details such as credit accounts, payment history, balances, searches, electoral roll information and some public records. Under the Information Commissioner's Office guidance on credit, you have rights over how your data is used, and you can obtain a statutory credit report from agencies such as Experian. For a deeper explanation, see our guide on how to check your credit file.
Because each agency may hold slightly different data and each lender uses its own criteria, improving the underlying file is more useful than chasing a particular score.
How to check your credit reports and correct errors
Start by requesting your credit reports from the main credit reference agencies. You can use statutory reports, and some services provide free access. Check each account, balance, payment status, address and search entry. Errors are not uncommon, and a wrong default or missed payment can hold your score down.
- Gather proof of identity and current address so you can request reports without delay.
- Compare every account across agencies; an item may appear with one agency but not another.
- Dispute anything inaccurate with the relevant agency, including duplicate accounts, wrong balances or payments marked late when they were not.
- Ask the lender to correct its own reporting if the agency cannot resolve it.
- If a correction is refused, you can ask the agency to add a notice of correction explaining your side.
Keep copies of your dispute correspondence and the agency's response. If the error is corrected, ask for confirmation and check the next report to ensure the change has appeared.
If a lender or credit reference agency does not resolve a complaint, you can ask the Financial Ombudsman Service to review it. Our guide on complaining to the Financial Ombudsman explains the process.
Build a consistent payment history
Payment history is a core part of how lenders assess you. The aim is simple: make at least the minimum payment on every credit account by the due date, every month. This includes credit cards, loans, overdrafts, mobile phone contracts, utilities where reported, and buy-now-pay-later agreements that share data with agencies.
If you are struggling, contact the lender before you miss a payment. Under FCA rules, firms are expected to treat customers fairly and consider forbearance in some circumstances; see the FCA consumer pages and CONC for the framework. Missing a payment can stay on your file for a period, so it is better to agree a temporary arrangement than to default silently. Our guide on what happens if you miss a payment covers the practical steps.
| Action | Why it helps | Practical habit |
|---|---|---|
| Set up a Direct Debit for at least the minimum | Reduces the risk of a late payment | Check the bank balance before each due date |
| Keep a separate bill account | Makes it easier to see what is committed | Transfer bill money on payday |
| Use calendar reminders | Catches irregular payments | Review upcoming payments weekly |
| Contact the lender early | May prevent a missed payment becoming a default | Use the lender's secure message service or app |
Manage credit utilisation and account balances
Credit utilisation is the share of your available revolving credit that you are using. There is no single pass mark, but lower balances relative to limits are generally viewed more positively than maxed-out cards. This does not mean you should close old cards; account age and available credit can both matter.
To reduce utilisation without necessarily clearing debt overnight, you can:
- Pay more than the minimum where affordable, focusing on the highest-interest balances first.
- Spread balances across cards if that lowers the utilisation on any one account, while avoiding new debt.
- Ask for a limit increase only if you can manage it and will not spend more; a higher limit can lower utilisation, but a search may appear.
- Avoid closing your oldest credit card if it has no fee, because a longer account history can help.
- Use our credit card payoff calculator to plan repayments without guessing.
If you are carrying balances, a balance transfer or consolidation may reduce interest, but it does not reduce debt by itself. Read the terms carefully and avoid using the freed-up credit for new spending.
Lenders also assess affordability, not just score. Read how lenders assess affordability to understand the income and spending checks behind a decision.
Be careful with new credit applications
Each application for credit often leaves a search on your file. Many searches in a short period can suggest to lenders that you are taking on more credit than you can manage. Before applying, use eligibility checks or quotation searches where available, because these usually do not affect your score.
Compare the total cost, not just the monthly payment. A loan or card may have a representative APR, but the rate you are offered depends on your circumstances. The FCA consumer pages explain the regulatory context, and our guide on how APR works can help you read an offer. If you need to borrow, consider loan eligibility and use our loan comparison calculator to compare repayment costs.
Quotation searches can show whether you are likely to be accepted, but they are not a guarantee. If you are declined, ask the lender which agency it used and check that report before applying elsewhere.
Handle existing debt without making your file worse
If you already have arrears, defaults or a debt management plan, the priority is to stop further damage and move toward stability. Contact free debt advice services through GOV.UK debt advice. They can explain options without charging you for initial guidance.
Options may include a repayment plan, a debt management plan, an individual voluntary arrangement or bankruptcy, depending on your situation. These have different effects on your credit file and different legal consequences. The same official debt advice guidance can help you compare them. Do not use a fee-charging claims firm that promises to erase accurate history.
If you cannot pay, do not ignore letters. Early contact gives you more options and may prevent county court action or enforcement. Keep a record of all agreed arrangements.
Under the Consumer Credit Act 1974, there are rules about credit agreements and statements; see the Act. The Financial Ombudsman Service can review complaints about how a lender has treated you. If you are considering a debt solution, check our guide on debt consolidation loans and be cautious: consolidating unsecured debt into secured debt can put your home at risk.
Long-term habits and fraud protection
Improving your credit score is usually a matter of months and years, not days. Keep addresses up to date, register on the electoral roll where eligible, and avoid letting accounts fall into arrears. If you have a thin file, a credit-builder product or a small regular commitment reported to agencies can help demonstrate reliability, but only if you can repay it comfortably. See credit-builder loans explained.
Check your file for signs of fraud, such as searches or accounts you do not recognise. Report suspected fraud to the lender and consider the Citizens Advice scams guidance. A notice of correction can be added to your file if there is a genuine explanation for a past problem. Finally, keep borrowing affordable: a better score does not make an unaffordable loan safe. Use our affordability calculator before committing.
Review your report at least once a year, and before any major application. Small administrative errors, such as a misspelled address or an old account shown as open, are easier to fix early.