Credit & scoring
Understanding your credit score
What your credit score actually means, how it's calculated, and the steps you can take today to improve it — without gimmicks.
6 min read → Credit & scores
How credit utilisation works
Utilisation is one of the fastest-moving factors in your credit score — and one of the most actionable. Here's exactly what it measures, why lenders care, and how to get it working in your favour.
5 min read • Cash Train editorial team
What credit utilisation actually is
Credit utilisation is the percentage of your available revolving credit that you are currently using. It is calculated across all your revolving accounts — mainly credit cards, store cards, and arranged overdrafts — not instalment loans.
Utilisation = (Total balances ÷ Total credit limits) × 100
If you have two credit cards — one with a £2,000 limit carrying a £600 balance, and one with a £3,000 limit carrying a £900 balance — your combined utilisation is (£1,500 ÷ £5,000) × 100 = 30%.
Why lenders pay close attention to it
Credit reference agencies — Experian, Equifax, and TransUnion — each use their own scoring models, but all three treat utilisation as a significant factor. The logic is straightforward from a lender's perspective:
High utilisation suggests financial stress
Consistently using most of your credit limit may signal that you rely on borrowing to meet day-to-day expenses, which increases the risk of missing a future payment.
Low utilisation signals controlled borrowing
Using a small fraction of what is available tells lenders you are not over-extended and are managing credit as a convenience rather than a necessity.
It changes month to month
Because utilisation is calculated from live balances reported each month, it can move your score faster — in either direction — than most other factors.
The 30% rule — and what it really means
You will often read that keeping utilisation below 30% is the target. That guidance is broadly right, but the nuance matters:
0–9%
Excellent
Strongest positive signal to lenders
10–29%
Good
Comfortable range for most borrowers
30%+
Watch this
Score impact worsens as it climbs
There is no cliff edge at 30% — a score does not suddenly collapse the moment you hit 31%. The impact worsens gradually. A person at 55% will typically score lower than one at 35%, who will score lower than one at 15%. The direction of travel matters as much as the precise figure.
Individual card utilisation vs overall utilisation
Credit scoring models look at two things simultaneously: your combined utilisation across all revolving accounts, and the utilisation on each individual card. Maxing out one card can hurt your score even if your overall ratio looks fine.
Example: You have three cards with limits of £3,000, £2,000, and £1,000 (total £6,000). You carry a £3,000 balance entirely on the first card. Overall utilisation = 50%. But one card is at 100% — a strong negative signal on its own, regardless of the combined figure.
Where possible, spread balances across cards rather than concentrating them on one. Your overall and per-card utilisation will both improve.
Practical steps to lower your utilisation
You have more control over utilisation than almost any other scoring factor. These are the most effective levers:
1
Pay down balances before your statement date
Lenders typically report your balance on your statement date, not your payment due date. Paying down your card before the statement is generated means a lower balance gets reported to the agencies — and your utilisation improves sooner.
2
Request a credit limit increase
If you have a good payment history, ask your credit card provider to raise your limit. Your balance stays the same; your limit goes up; utilisation falls instantly. Soft-search requests are available from some providers and will not affect your score.
3
Keep old accounts open
The age and available limit of dormant cards still count towards your total available credit. Closing them reduces that total and can push utilisation up. Keep accounts open if there is no annual fee.
4
Make more than the minimum payment
Minimum payments often cover little more than interest, meaning your balance barely falls. Paying double or triple the minimum significantly reduces your outstanding balance — and therefore your utilisation — over the following months.
How instalment loans fit into the picture
It is worth understanding what utilisation does not include. Instalment loans — mortgages, car finance, and personal loans including Cash Train's products — are handled differently in credit scoring. They have a fixed balance that reduces with each payment; they do not have a revolving credit limit.
Because there is no revolving limit, they do not feed into the utilisation calculation. Taking a Cash Train instalment loan will not raise your utilisation ratio. It will appear as a credit commitment on your file, which affects overall credit capacity assessments, but the utilisation percentage itself is unaffected.
Subject to status and affordability. Borrow £500 over 6 months at 49.9% APR (fixed): monthly repayment £95.21, total repayable £571.26. Representative example — indicative only.
Quick reference
Credit utilisation: Percentage of revolving credit in use. Lower is better.
Revolving credit: Credit cards, store cards, and arranged overdrafts with a reusable limit.
Instalment credit: Fixed loans with set payments — mortgages, car finance, personal loans.
Combined utilisation: Your total balances as a percentage of all revolving limits combined.
Per-card utilisation: Utilisation on each individual card — also assessed separately.
Statement date: The day your card balance is locked and typically reported to agencies.
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Common questions
FAQ
Most credit-scoring models reward keeping your utilisation below 30% of your available credit limit across all revolving accounts. Borrowers with the highest scores tend to use less than 10%. There is no universal "ideal" — the lower the ratio, the better the signal it sends to lenders — but being slightly under 30% is a practical target for most people.
Yes, it can. Closing a card reduces your total available credit limit, which raises your utilisation ratio on the remaining accounts even if your balances stay the same. Before closing a card, work out the impact: if you have £5,000 total credit and £1,500 balance, you are at 30%. Close a card with a £2,000 limit and your utilisation jumps to 50% overnight.
Most UK lenders report balances to the credit reference agencies — Experian, Equifax, and TransUnion — once a month, typically on your statement date. Once a lower balance is reported, credit scores usually update within a few days. Paying down a balance can therefore improve your reported utilisation within four to six weeks.
No. Cash Train offers instalment loans — fixed-term, fixed-payment credit — which are reported differently to revolving credit (credit cards and overdrafts). Instalment loan balances do not count towards your credit utilisation ratio. Your utilisation is calculated only from revolving credit facilities such as credit cards, store cards, and credit-limit overdrafts.
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