In the UK, three credit reference agencies — Experian, Equifax, and TransUnion — hold detailed financial records on nearly every adult, and the information on your UK credit reports is what lenders look at when you apply for a mortgage, loan, credit card, or even a mobile phone contract. The law gives you the right to see each report for free, challenge anything inaccurate, and add your own written explanation to entries you dispute.
Who Holds Your Credit Data
Experian, Equifax, and TransUnion are private commercial companies licensed by the Financial Conduct Authority, with the Information Commissioner’s Office overseeing how they handle your personal data.1Information Commissioner’s Office. Credit They don’t decide whether you get credit. They collect the data; lenders interpret it against their own criteria.
Each lender reports account activity to one or more of the three agencies, not necessarily all three. That means your file at Experian can look different from your file at Equifax or TransUnion. If you want the full picture of what lenders might see, you need to check all three.
What’s Actually on Your Credit Report
Your report combines public records with your private account history.
On the public side, agencies use the full electoral register to confirm your identity and address.2GOV.UK. The Electoral Register and the Open Register Not being registered to vote can make it harder for a lender to verify where you live, which sometimes leads to rejected applications even when the rest of your finances look fine. Public records also include County Court Judgments, bankruptcies, Individual Voluntary Arrangements, and Debt Relief Orders.
On the private side, the report lists the credit cards, loans, mortgages, and similar agreements you hold, together with your limits, balances, and payment history. Late or missed payments appear here, and most lenders focus on this section when weighing risk.
Two other things also sit on your file: a record of every credit search run against your name, and any financial associations linking you to someone else through joint borrowing.
How Long Negative Entries Stay
Most negative information stays visible for six years. Defaults drop off automatically six years from the date they were recorded.3MoneyHelper. How Long Does a Default Stay on Your Credit File County Court Judgments follow the same six-year rule, with one useful exception: if you pay the full amount within one month of the judgment, you can apply to have it removed entirely. Debt Relief Orders also stay for six years.4Experian. Debt Relief Orders and Your Credit Score
Bankruptcies and Individual Voluntary Arrangements likewise sit on your file for six years. The clock usually runs from the date the event was registered rather than the date it was resolved, which catches people out. Paying off the debt or completing the arrangement doesn’t buy you an early removal.
Soft and Hard Credit Searches
Every check against your file is logged, but not every check counts the same way.
A soft search is a background look that only you can see on your own report. Lenders use soft searches for pre-approval checks and eligibility tools. However many you accumulate, they don’t affect your score.5Experian. Searches on Your Report: Soft and Hard Credit Checks
A hard search is the full check that happens when you formally apply for credit, and other lenders can see it. Too many hard searches in a short period can lower your score for up to six months.5Experian. Searches on Your Report: Soft and Hard Credit Checks If you’re shopping around for a mortgage or loan, use eligibility checkers that run soft searches before committing to a full application.
Your Credit Report Is Not Your Credit Score
The report is a factual record. The score is a number each agency generates from that record using its own scale. Experian runs 0 to 1,250. Equifax runs 0 to 1,000. TransUnion tops out at 710. A score of 600 might be excellent at one agency and middling at another, so comparing the numbers across agencies tells you nothing.
Lenders also run your data through their own internal scoring models, and a credit card provider and a mortgage lender looking at the same file can reach different conclusions. Treat the agency’s score as a rough guide to the health of your file, not as the number that decides your application.
Getting Your Credit Report for Free
You can request a statutory report from each of the three agencies at no cost. The right comes from Article 15 of the UK GDPR, which entitles you to a copy of any personal data held about you.6Experian. Statutory Credit Report Each agency offers both online and postal routes, and must respond within one calendar month, with a possible extension of up to two further months in complex cases if the agency explains why.1Information Commissioner’s Office. Credit
When you apply, you’ll need to give your full name, date of birth, current address, and every previous address from the last six years with postcodes.1Information Commissioner’s Office. Credit Add any former names if you’ve changed yours. A small mismatch between what you provide and what the agency holds can delay the request or produce an incomplete report.
All three agencies also offer ongoing free access through consumer services: Experian’s free tier, Equifax via ClearScore, and TransUnion via Credit Karma. These are convenient for monitoring, but the statutory report is your legal right regardless of whether you sign up for anything.
Fixing Mistakes on Your Report
If you spot something wrong, raise it with the agency that holds the incorrect data. Often the error originates with the lender who supplied the information, so contact them in parallel — a lender can update what it has sent to the agencies without waiting for the agency to pass the dispute along.1Information Commissioner’s Office. Credit
Once an agency receives your dispute, Section 159 of the Consumer Credit Act 1974 gives it 28 days to investigate and tell you what it’s done.7Legislation.gov.uk. Consumer Credit Act 1974 Section 159 While the investigation is open, the entry should be flagged so anyone searching your file knows it’s being challenged. The agency will then remove it, amend it, or confirm it believes the data is accurate.
Adding a Notice of Correction
If the agency sticks with the data but you still think it’s misleading, you can require it to attach a notice of correction: a short statement of up to 200 words, in your own words, explaining the circumstances.7Legislation.gov.uk. Consumer Credit Act 1974 Section 159 Anyone who manually reviews your file has to read it.8TransUnion. What Is a Notice of Correction
Notices work best when the raw data is technically correct but strips out context. A missed payment caused by a lender posting your money to the wrong account is a classic example. Keep the statement concise and factual; a specific explanation carries more weight than a general grievance.
When the Agency Won’t Budge
If you don’t hear back within 28 days, or the agency refuses to add your notice of correction, either you or the agency can apply to the Information Commissioner to resolve the dispute. The Commissioner can order whatever remedy they see fit, and failing to comply with such an order is a criminal offence.7Legislation.gov.uk. Consumer Credit Act 1974 Section 159
Separately, data protection law gives you a right to rectification: inaccurate personal data must be corrected without undue delay. If an agency’s failure to fix an error causes you financial loss, such as a rejected mortgage application, you may be entitled to compensation.
Removing a Financial Link to an Ex-Partner
A financial association forms when you take out joint credit with someone: a joint mortgage, bank account, or loan. Once linked, a lender reviewing your file can also take the other person’s credit history into account. If your ex has poor credit, that association can hurt your applications long after you’ve gone your separate ways.
You can ask for a disassociation once you no longer share any active joint accounts. Experian, for example, has a disassociation form you complete to confirm there’s no remaining financial connection.9Experian. Add a Disassociation The ICO confirms that once the joint account is closed, you can write to the agencies to have the link removed.1Information Commissioner’s Office. Credit Each agency has its own form, so submit the request to all three.
You can’t disassociate while a joint account is still open, even if you no longer speak to the other person. Close or transfer the account first, then apply. Making a false statement on the form to obtain credit you otherwise wouldn’t get can amount to a criminal offence.9Experian. Add a Disassociation
If You’ve Been a Victim of Fraud
CIFAS protective registration places a warning flag against your name in the National Fraud Database. Companies that check the database will see you’re at risk of identity fraud and run extra verification before approving anything in your name.10Equifax. Information on CIFAS
The flag lasts two years and is a paid service.10Equifax. Information on CIFAS It makes life harder for a fraudster, but your own legitimate applications will also take longer while your identity is checked. If your personal data has been exposed in a breach, the delay is usually worth the protection. The agencies share fraud-related information between them, so notifying one should prompt all three to update their records.1Information Commissioner’s Office. Credit
Taking a Complaint Further
If you’ve worked through the dispute process with the agency and the lender and still haven’t got anywhere, two escalation routes are open to you.
For data protection problems — the agency holds or processes your data incorrectly and won’t fix it — complain to the Information Commissioner’s Office. The ICO can investigate whether the agency has breached data protection law, but it won’t rule on whether a debt was genuinely owed.1Information Commissioner’s Office. Credit
For complaints about how a financial business has treated you, the Financial Ombudsman Service is the right body. Give the business a chance to resolve things first; it has up to eight weeks to issue a final response. If you’re unhappy with that response, or the business doesn’t reply in time, you can bring the complaint to the Ombudsman within six months. The Ombudsman can order the business to put things right if it finds unfair treatment, including correcting your credit file or paying compensation for documented harm.11Financial Ombudsman Service. Complaints We Can Help With