What Goes Into My Credit Score and How Do I Improve It?
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If you’ve ever checked your credit score and thought… what does this actually mean?, then you’re definitely not alone.
It’s one of those things we’re told is important, but no one really explains properly. You just see a number and hope it’s “good enough”.
I remember the first time I really paid attention to mine. It wasn’t great. And honestly, it felt a bit overwhelming. Like, where do you even start?
But once you understand what goes into your credit score, it all becomes much simpler. And more importantly, you realise it’s something you can actually improve.
Let’s break it down in a straightforward way.

What is a credit score and why does it matter?
Your credit score is a number that shows how reliable you are when it comes to borrowing money.
Lenders use it to decide things like:
- Whether to approve you for credit
- How much you can borrow
- What interest rate you’ll be offered
So, a higher score usually means better deals. Lower interest, more options, less hassle.
Having a good credit score helps to protect your financial future.
And it’s not just about big things like mortgages. Your credit score can affect car finance, mobile phone contracts, and even some rental applications.
It quietly sits in the background influencing more than you might think.
What is a good credit score in the UK?
One thing that can be confusing is that there isn’t just one universal credit score.
Different agencies score you slightly differently:
- Experian scores out of 999
- Equifax scores out of 1000
- TransUnion scores out of 710
In general, anything rated as “good” or “excellent” is where you want to be.
But here’s the important bit: lenders don’t just look at your number. They look at your full credit report, your history, and your overall financial behaviour.
So even if your score isn’t perfect, you can still be accepted for credit. And equally, a high score doesn’t guarantee approval.
It’s a useful guide, but it’s not the whole story.
What goes into your credit score?
This is where it starts to make sense. Your credit score isn’t random. It’s based on a few key factors.
Once you understand these, you can start improving things quite quickly.
Your payment history
This is one of the biggest factors.
Simply put, do you pay your bills on time?
That includes credit cards, loans, phone contracts, utilities, and even things like buy now, pay later accounts.
Missed or late payments can stay on your credit file for years.
This is why consistency matters more than anything else. Even if you’re only making minimum payments, paying on time is crucial.
Your credit utilisation
This is how much of your available credit you’re using.
For example, if you have a credit card limit of £1,000 and you’ve spent £900, you’re using 90% of your available credit.
That can look risky to lenders.
Ideally, you want to keep this lower, often under 30% is a good guideline.
So if you have a £1,000 limit, try to stay below £300 if possible.
It doesn’t mean you can’t use your card. Just be mindful of how much of your limit you’re using at any one time.
Check out these ideas for how to pay your credit card faster.
Your credit history length
The longer you’ve had credit, the better.
Lenders like to see a track record. It shows stability.
This is why keeping older accounts open, even if you don’t use them much, can sometimes help your score.
It builds that history over time.
Your types of credit
Having a mix of credit can be beneficial.
Things like credit cards, loans, and mortgages all show different types of borrowing behaviour.
But this doesn’t mean you should take out credit just for the sake of it.
It’s more about showing you can manage different types responsibly.
Your recent credit applications
Every time you apply for credit, it leaves a mark on your file.
Too many applications in a short period can make lenders nervous.
It can look like you’re relying heavily on credit or struggling financially.
Spacing out applications can help protect your score.
What does not affect your credit score?
There are also a few common myths worth clearing up.
Things that do not directly affect your credit score include:
- Your income or salary
- How much you have in savings
- Checking your own credit score
- Using a debit card
A lot of people assume these matter, but your credit score is focused on how you handle borrowed money, not how much you earn or save.
So even if you have one million pounds saved, but have never used credit before, you could have a really bad credit score! It's got nothing to do with how much you earn or how much wealth you have. Your credit score is about how well you manage credit and how risky a borrower you are to lenders.
How long does it take to improve your credit score?
This is something a lot of people want to know, especially if you’re planning to apply for credit soon.
Some improvements can happen quite quickly.
For example, paying down a high credit card balance or correcting an error on your report can give a noticeable boost within a month or two.
But bigger changes take time.
Missed payments, defaults, or long-term debt issues can stay on your file for several years. The impact fades over time, but it doesn’t disappear overnight.
The key is consistency. The longer you maintain good habits, the stronger your credit profile becomes.
How to improve your credit score (realistically)
This is the part most people care about.
And the good news is, improving your credit score doesn’t require anything complicated. It’s mostly about small habits done consistently.
Pay everything on time
This is the most important step.
Set up direct debits where you can. That way you don’t forget.
Even one missed payment can have a noticeable impact.
If you’re struggling, always contact the company rather than ignoring it. It’s almost always better to communicate.
Reduce your credit utilisation
If your balances are high, focus on bringing them down.
Even small reductions can help.
You don’t need to clear everything overnight. Just start lowering the percentage of your available credit that you’re using.
Check your credit report regularly
You can check your credit score for free in the UK through services like Experian, Equifax, and TransUnion, but you don’t always need to go directly to those websites anymore.
I actually use my banking apps to keep an eye on mine. My Halifax app and NatWest app both show my credit score, and a lot of modern banking apps now connect to your credit report automatically.
I also like using apps like Credit Karma, which is free, and I’ve signed up to TotallyMoney emails before as well. It’s helpful seeing regular updates without having to remember to log in and check.
For me, it’s not about obsessing over the number. I use it to make sure my score stays in the excellent range, keep an eye on my credit utilisation, and check there’s nothing suspicious on my accounts.
It’s also really useful when you know you’re going to apply for something like a bank loan, a mortgage when buying a house, or when it's time to remortgage your existing home as a homeowner. If your credit score is in a good place, you’re much more likely to be offered better interest rates, which can save a lot of money over time. Keeping a good credit score, for example, protects your long-term financial goals when moving home and borrowing, and is not just for your short-term credit needs.
Even just checking once a month is enough to stay on top of things and spot any issues early.
Avoid unnecessary credit applications
It can be tempting to apply for multiple cards or loans, especially when you’re trying to improve things.
But too many applications can have the opposite effect.
Be selective. Only apply when you actually need to.
Stay on the electoral roll
This is a simple one, but it helps.
Being registered to vote at your current address makes it easier for lenders to verify your identity.
It’s a small step that can support your overall credit profile.
Keep old accounts open (if they’re healthy)
If you’ve had a credit card for years and managed it well, closing it might not help your score.
It shortens your credit history and reduces the amount of available credit to you, thus worsening your credit utilisation score.
If there’s no fee, sometimes it’s worth keeping it open, even if you rarely use it.
Can you improve your credit score quickly?
This is one of the most common questions.
And the honest answer is… sometimes, but usually it can't be done quickly and takes time.
There are a few things that can give quicker improvements:
- Paying down high balances
- Correcting errors on your report
- Getting up to date with missed payments
But overall, credit scores improve through consistent habits over time.
There’s no instant fix, but there is steady progress.
Need help with your money management? Check out these 10 tips to keep your finances healthy.
What if your credit score is low?
If your score isn’t great, try not to panic.
A lot of people start in this position, myself included.
The key is not to ignore it.
Start small:
- Make all payments on time
- Reduce balances where you can
- Avoid new debt unless necessary
Even small improvements build momentum.
And once your score starts improving, it becomes much easier to keep going.
Also, check out these ways to build credit without using a credit card.
Simple daily habits that keep your credit score healthy
Keeping a good credit score isn’t about doing anything complicated. It’s about staying consistent with a few simple habits.
- Set up direct debits for all bills
- Check your credit score regularly
- Keep credit card balances low
- Avoid unnecessary applications
- Review your bank statements for unusual activity
These small actions add up over time and help keep your finances in a strong position.
Final thoughts
Your credit score might feel like this mysterious number, but it’s really just a reflection of your habits over time.
Once you understand what affects it, you’re no longer guessing.
You’re in control.
I’ve been in a position where my credit wasn’t great as my spending was out of control, and I know how frustrating it can feel. But with simple, consistent changes, it does improve.
And when it does, everything gets easier.
Better rates, more options, less stress.
It’s not about perfection. It’s about building better habits, one step at a time.
Improving your credit score comes down to paying on time, keeping balances low, and building a positive history over time. Small, consistent habits can significantly boost your score and improve your financial opportunities.
