Building a better credit score in the UK

People with good credit scores tend to have more options. Lenders are happier to take them on, and they're generally offered the best deals on cards, loans and mortgages.

A perfect score is rare, but a good one is something you build gradually.

What your credit score is#

Your score is an at-a-glance representation of your credit health — a tool for understanding whether lenders are likely to approve you when you need to borrow.

The higher your score, the easier it should be to find a competitive deal. Lower, and you're more likely to face higher interest rates, larger deposits, or rejection.

People with higher scores generally:

• Use a mix of credit over time — a credit card, a personal loan, a mobile phone contract
• Make repayments on time consistently, according to the terms of the agreement
• Avoid negative markers like arrears, defaults, CCJs and insolvencies

How it's calculated#

There's no universal scorecard in the UK. Your score is calculated differently by lenders, by credit-checking services, and by the agencies themselves, so there are variations between them. Lenders also apply their own systems based on their own criteria.

Your score comes from the entries on your credit report, which contains two kinds of information:

• Public information — the Electoral Roll, court judgments, insolvencies and bankruptcies recorded against your name
• Private information — lenders you've had agreements with over the past six years, the dates you made or missed repayments, and formal applications for new credit

Each entry has a neutral, positive or negative effect. Adding positive markers while avoiding negative ones is the whole game.

The single best thing you can do#

There's no quick fix. You show you can manage credit responsibly by repaying your agreements on time, every month.

That builds a track record of reliability, which tells potential lenders you'd manage a new agreement well too.

A direct debit helps, since the money goes automatically. Noting when payments are due makes them easier to budget for, and avoids both a negative marker and any late payment fees.

Five other ways to improve it#

1. Stay credit active#

It's common to have a low score when you're not actively using credit.

If you only use a debit card, bought your phone and car with cash, and have no mortgage, you aren't borrowing — reassuring, but it means no positive payment history is building either. That history is exactly what lenders want to see.

You need to use credit to have a good credit score. Without it, your report holds little beyond your Electoral Roll information. It's also why credit cards are harder to get under 21 — younger people have short reports, so lenders have less to go on.

If your score is low because of negative markers, continuing to use credit you can afford and repaying on time builds a positive record after the marker. That leaves you far better positioned once six years pass and the marker drops off.

2. Keep an eye on your CUR#

Your credit utilisation ratio is the percentage of available credit you use each month.

Around 30% is beneficial. It strikes the balance between showing you can manage credit and showing you don't depend on it. Consistently higher starts to lower your score, because it looks like reliance on credit to make ends meet.

This is also why closing an account can cause a temporary dip: with outstanding balances elsewhere, your overall CUR rises. Not a reason to keep an account you don't need, but it explains an unexpected drop.

3. Keep your Electoral Roll entry current#

One of the easiest wins, if you're eligible:

• Register to vote
• Correct any errors in how your name or address is recorded
• Update after a name or address change

Electoral Roll records matter enormously because lenders use them as an index. The UK has no national database of residents, so the roll maintained by your local authority (opens external site) is the main way lenders verify that your application details are valid.

If your application address doesn't match — your house number is 24 but the roll says 42 — the lender can't verify you or see your full report. Your positive payment activity may simply not appear.

You can register or update online in five minutes (opens external site). Do it when you move, when you change your name, and whenever your local office sends a reminder.

Pay attention to spelling and format, and have old addresses and postcodes to hand — the form asks whether you've moved in the past 12 months.

4. Keep all your accounts up to date#

Most people remember their driving licence, passport and current account after a move or a marriage. Fewer remember to tell the company handling their car finance.

Consistent personal details across the board means all your payment history returns on your report, so you don't miss out on the contributions it makes.

5. Check for errors#

Errors happen, and they can be significant — a default recorded when you paid the debt on time, or something smaller like a typo in your personal information that stops lenders seeing everything they should.

Cross-referencing all three agencies is how you find them. If you do spot something, take it up with the lender reporting it first, then with the agency if that doesn't resolve it.

What to avoid#

If you're paying your mortgage religiously, don't forget the other accounts. Otherwise you risk:

• Arrears — consecutive months of missed payments, expressed either as time or amount. Someone might be three months or £800 in arrears on a credit card.
• Defaults — the relationship has broken down after several months of unpaid debt. Lenders often report after six months, though it varies.
• CCJs — a creditor took you to court over unpaid debt and won.
• Bankruptcy — personal insolvency, with a trustee managing your affairs.
• IVAs — formal agreements to repay all or part of a debt. The Scottish equivalent is a Trust Deed.

The more serious the marker, the greater the damage, and they compound — an unpaid default can lead to a CCJ later. That said, nothing like a default appears without warning; there's a strict legal notification process first.

Two more things worth watching:

Applying for credit triggers a hard search. Formal applications are recorded as an application search. Too many in a short period lowers your score, because lenders read it as struggling for acceptance or taking on a lot recently — and outcomes aren't reported, so they can't tell which.

When shopping around, use eligibility checkers rather than applying widely. Those run soft searches, which leave a footprint but don't affect your score.

Closing accounts causes a dip. You'd assume finishing a debt would help, but the opposite is usually true short term. With no monthly payments on the account, less payment history is being added. Previous timely repayments still count, but carry less sway than active accounts.

Account age matters too. New accounts have less impact than older active ones, because there's less history. Longer payment histories signal lower risk.

Don't keep accounts open purely for your score. An unused, unmonitored account carries a higher risk of fraud going unnoticed.

Payment holidays. Sometimes necessary — redundancy, time off to care for a family member. You'd arrange one by contacting your lender to change your repayments, outside the terms of the original agreement. It eases real pressure, but can be viewed negatively. Ask your lender whether it will be reported as an arrangement to pay, which is a serious negative marker.

Voluntary termination. This shows your agreement ended early. Making all payments on time to completion gives maximum positive impact, so future lenders may be more cautious seeing a termination, and might ask for a higher deposit or interest rate.

Don't confuse it with voluntary surrender, which is when you can no longer afford repayments and agree to return the product — a car, for instance. That's usually the worst case, and the full outstanding balance would still be due. If repayments are becoming difficult, contact your lender directly first.

Common misconceptions#

Lenders usually won't see the score you see — they have their own scorecard and look at information that never appears on your report.

Getting a new job. Your job and salary affect how lenders see your application; they look for stability and affordability. It's why a mortgage is harder when you're self-employed with fluctuating income, on a zero-hours contract, or still in probation. But your job, employment history and salary don't affect your credit score, because they aren't reported to the agencies.

Moving frequently. Lenders can view frequent address changes as instability, which makes an application look riskier. Moving won't directly affect your score — but always update your Electoral Roll record and credit accounts when you do.

Ending financial associations. You may be associated with someone if you've acted as a guarantor, share a bank account, or share a credit agreement. It's worth ending inactive ones, because financial associations show a lender that someone relies on you financially, and the lender can take their report into account.

But an association won't directly affect your score, whatever is on the other person's report. Ending one isn't a shortcut to a better number. Here's how to remove one.

How long it takes#

You're unlikely to see a big jump overnight. With consistent repayments, attention to utilisation and up-to-date details, expect gradual improvement.

The key things to remember#

• Add positive markers, avoid negative ones — that's the whole mechanism.
• You have to use credit to build a score; inactivity keeps it low.
• Aim for around 30% credit utilisation.
• The Electoral Roll is the index lenders use to find you; a mismatched address can hide your history.
• Use eligibility checkers instead of applying widely.
• Closing accounts causes a short-term dip, but never keep one open just for your score.
• Ask whether a payment holiday will be reported as an arrangement to pay.
• Voluntary termination and voluntary surrender are different — surrender is far more serious.
• Job, salary, moving frequently and financial associations don't directly affect your score.
• Negative markers clear after six years.