10 Credit Score Myths That Are Completely Wrong
Credit scores are one of those topics where everyone seems to know just enough to be dangerous. Ask five people for advice and you'll get five different "facts" — half of them wrong. Some of these myths are old. Some are repeated as gospel on the internet. All of them can lead you to make decisions that hurt your score rather than help it.
So here are the ten most common ones, and the actual truth behind each.
Myth 1: Checking your own score damages it
The truth: Checking your own credit score never harms it. Ever.
When you check your own file (through Experian, ClearScore, Credit Karma or directly through a credit reference agency), it counts as a "soft search". Soft searches are invisible to other lenders and have zero effect on your score. You could check it every day for a year and it wouldn't matter.
The myth comes from a time when soft searches didn't exist — every check was a hard search and did affect your score. The system has since changed. Today's truth: checking is risk-free and helps you spot problems early. Our guide to checking for free covers how.
Myth 2: You have one universal credit score
The truth: You have at least three different scores — one at each UK credit reference agency.
Experian, Equifax and TransUnion each maintain their own credit file on you, with their own scoring scale. The data is mostly similar but not identical, because not every lender reports to all three. The scales are different too: Experian goes up to 999, Equifax to 1,000, TransUnion to 710.
Beyond the agency scores, lenders run their own internal scoring models on the raw data when they assess your application. So "your" credit score is really a family of related scores, all reflecting the same underlying creditworthiness from slightly different angles.
Myth 3: Earning more improves your credit score
The truth: Your income isn't on your credit file and has no direct effect on your score.
The credit reference agencies don't know what you earn. Your salary, savings and assets are nowhere on your file. The score is calculated entirely from your credit behaviour: payment history, balances, utilisation, account age, applications.
What income does affect is the lender's affordability assessment. A great score with low income might still mean a rejection because the lender thinks you can't afford the payments. A weaker score with high income might still mean rejection because the score doesn't meet their cutoff. Score and affordability are two separate checks that both need to pass.
Myth 4: Being in a relationship links your credit file
The truth: Marriage, partnership or living together does not link your credit files.
This is one of the most persistent myths. Credit files are individual. You don't acquire your partner's credit history when you move in, get engaged or marry. Their score doesn't affect yours by association.
What does create a link is sharing a financial product: a joint bank account, joint mortgage, joint loan, or being added as an authorised user on someone's card. Once you've got a shared product, the credit reference agencies note the financial association, and lenders can see how the other party manages credit when they assess you. Closing the joint product severs the link after about six years.
Myth 5: Old debts disappear after 6 years automatically
The truth: The negative credit file entries drop off after six years — but the debt itself doesn't legally disappear.
This is a subtle but important distinction. A default, missed payment, CCJ or bankruptcy stops appearing on your credit file after six years from the date it was first recorded. That stops affecting your score and your applications.
But the debt itself — the money owed — doesn't necessarily expire. In England and Wales, most consumer debts become "statute-barred" after six years of no contact and no acknowledgement, at which point the creditor can't pursue you in court. But until then, the creditor can still chase. And acknowledging the debt (even in conversation) resets the six-year clock.
So old debts can stop hurting your credit score while still being collectible in principle. They're two separate things.
Myth 6: Paying off a default removes it immediately
The truth: Paying a default updates its status to "satisfied" — but it stays on your file for six years from the original default date.
A satisfied default still hurts your score (less than an unsatisfied one, but still notable), and lenders can still see it. The good news is that "satisfied" looks much better than "unsatisfied" — lenders generally view paid defaults more favourably than active ones.
The only exception: CCJs paid in full within 30 days of judgement can be removed from your file entirely. Beyond that 30-day window, paying just updates the status to "satisfied".
Myth 7: Closing credit cards improves your score
The truth: Closing credit cards usually hurts your score.
Closing a card reduces your total available credit. So the balances on cards you still use push your utilisation higher overnight. Closing also shortens your average account age, which weakens your length-of-credit-history factor.
The right move is usually to leave old cards open (especially if they have no annual fee) and use them occasionally to keep them active. Our credit utilisation guide covers the maths.
The only time closing makes clear sense: when a card has a significant annual fee you're no longer earning back, or when it's a genuine fraud risk you can't otherwise manage.
Myth 8: You need to carry a balance to build credit
The truth: Paying off your balance in full every month is the cleanest way to build credit.
This myth is particularly damaging because it leads people to deliberately carry interest-bearing balances thinking they're building credit. They're not — they're just paying interest.
What builds credit is using the card and paying it back on time. Paying in full demonstrates exactly that, and costs you zero in interest. The credit reference agencies see the same positive behaviour whether you pay £20 of a £100 balance and let the rest roll, or whether you pay the full £100 — except the second option doesn't cost you anything extra.
Myth 9: A CCJ stays forever
The truth: A County Court Judgement drops off your credit file after exactly six years.
It's a serious mark while it's there — visible to every lender, heavy negative weight on your score — but it's not permanent. Six years from the date the CCJ was registered, it's automatically removed from your credit file. After that, lenders can't see it through normal credit checks, and it stops affecting your applications.
If you pay a CCJ in full within 30 days of the judgement, it can be removed from your file entirely. If you pay after the 30-day window, it stays on your file but gets marked "satisfied", which is better than "unsatisfied" but doesn't trigger removal.
Myth 10: Having no debt means a perfect score
The truth: Having no debt and no credit history means a thin file, which often means a poor score.
This is one of the most counter-intuitive features of how credit scoring works. Lenders want to see evidence of responsible credit use over time. Someone who has never had a credit card, loan or mortgage looks just as risky to them as someone with a damaged credit history — possibly more risky, because there's no data to work with.
People with thin files (recent arrivals to the UK, young adults, lifelong cash-only spenders) often find themselves declined for mainstream products and pushed toward credit-builder cards. The fix is to use a small amount of credit responsibly — see our guide to building credit with a credit card for the practical approach.
Avoiding credit isn't a strategy for a good score. Responsibly using credit is.
Frequently asked questions
Where do credit score myths actually come from?
Mostly from old, outdated information that gets repeated without checking. The UK credit reference system has changed considerably over the last 20 years, and a lot of 'common knowledge' is based on how things worked in the 1990s. Online forums and well-meaning relatives also spread myths confidently. The system is actually well-documented — the credit reference agencies themselves explain how it works on their websites.
Are some 'myths' partially true?
A few. For example, 'check your own score affects it' was true decades ago when only hard searches were available. The system has changed since, and self-checks are now soft searches with zero impact — but the myth persists because the historical truth is still floating around. Many myths started as accurate but became outdated as the system improved.
What's the most damaging myth people believe?
Probably 'I should never use credit' or 'having no debt means a perfect score'. Both lead people to actively avoid the credit-building behaviour that would improve their file. Someone who's spent 20 years paying cash for everything often ends up with a thinner credit file than someone who's responsibly used a single credit card. Avoidance isn't a strategy.
How can I tell if credit advice is reliable?
Look for advice that's specific, references actual data, and acknowledges nuance. Vague guarantees ('this trick will boost your score by 100 points') are almost always wrong. Advice from the credit reference agencies themselves, the FCA, or established consumer organisations like MoneySavingExpert tends to be reliable. Random forum posts and social media less so.
Is anything about credit scores genuinely confusing?
Yes — the difference between agencies. Three agencies, three scales, three slightly different data sets. That genuinely is confusing, and the way each one labels its bands differently makes it worse. Beyond that, though, most of what credit scoring actually rewards is straightforward: pay on time, use credit responsibly, keep utilisation low, stay on the electoral roll.