Credit Scores: What Actually Moves Them

Credit scoring is surrounded by folklore. Understanding what actually influences it is worth real money, because the same person can be offered very different rates depending on how their file reads.

This is general information, not personal financial advice.

There is no universal score

The number an agency shows you is their own estimate, not a figure lenders see. There are three main credit reference agencies in the UK, each holding slightly different data, each with its own scale.

Lenders do not use those scores. They pull your report and apply their own model, weighted for the product and their own appetite for risk. That is why you can be declined by one lender and accepted by another on the same day.

So treat the score as a rough health indicator. The underlying report is what matters.

Check all three files, free

You have a legal right to see your statutory credit report. Several services also give ongoing free access.

Check all three, because data differs between them. A default recorded with one agency and not another is common, and a lender using the agency with the error is the one who declines you.

Never pay a subscription for a credit score. There is no paid product that improves your chances.

What genuinely helps

Register on the electoral roll

The simplest and most effective single step. It confirms your identity and address. If you are not eligible to vote, ask the agencies to add a proof-of-residency note instead.

Pay everything on time

Payment history is the heaviest factor. One missed payment marks the file; several become a pattern. Set direct debits for at least the minimum on every credit commitment, then pay more manually.

A missed payment stays on the file for six years, as does a default. Their impact fades over time, but the entry remains.

Keep utilisation low

Utilisation is the proportion of your available credit you are actually using. Running cards close to their limit reads badly even if you pay in full. Below about 30% is a common rule of thumb, and lower is better.

Counter-intuitively, that means a higher credit limit can improve your file, provided you do not spend it.

Show stability

Long-held accounts, a stable address history and a settled employment record all read well. Closing your oldest credit card can shorten your apparent credit history — often better to keep it open and use it occasionally.

Have some credit

A file with no borrowing history at all is hard to assess. If you have never had credit, a modest, well-managed account used regularly and cleared in full builds a record.

What hurts

• Multiple applications in a short period. Each leaves a hard search visible for around a year. Several in quick succession suggests desperation. Use eligibility checkers, which do a soft search that only you can see.
• Defaults, county court judgments and bankruptcy. These are serious and long-lasting.
• Persistent overdraft use. Living permanently in an overdraft signals stress.
• Financial association with someone else. A joint account or joint mortgage links your files. If their credit is poor, it affects yours. When a relationship ends, close joint accounts and apply for a notice of disassociation.
• Some buy-now-pay-later use. Reporting to credit files has been expanding. Missed payments increasingly show.

Myths worth dropping

• Checking your own report harms it. It does not. That is a soft search.
• You are blacklisted. There is no blacklist. Each lender decides.
• Your income is on your credit file. It is not. Lenders ask you separately.
• Closing unused cards always helps. Sometimes it hurts, by cutting available credit and shortening history.
• A previous occupier’s debt affects you. It does not, unless you were financially linked. If old addresses show unfamiliar data, dispute it.

Fixing errors

Errors are common. If you find one, raise a dispute with the agency, which must investigate, normally within 28 days. You can also add a Notice of Correction — a short statement explaining context, such as a missed payment during illness — which lenders see when assessing manually.

If you have been a victim of fraud, ask about protective registration.

Before a big application

If you are planning a mortgage, start six months out: check all three files, correct errors, register to vote, reduce card balances, avoid new applications, and close unused accounts you genuinely do not need.

Beware “credit repair” firms charging to remove accurate negative information. Accurate entries cannot be removed, and everything else you can do yourself for free. For debt problems, StepChange, National Debtline and Citizens Advice give free impartial advice.