Credit Cards
Credit Limits Explained UK — How They Work + How to Change Yours
How credit card limits are set, what affects your limit, how to request an increase, and the impact on your credit score.
25 August 2025
·
4 min read
Your credit limit determines how much you can spend on your card. Understanding how limits are set — and how to manage them — helps you maintain a healthy credit profile.
How Credit Limits Work
Feature
Detail
What it is
Maximum you can borrow on the card
Set by
The card issuer based on your profile
Can it change?
Yes — increases and decreases possible
Different per card
Each card has its own limit
“Available credit”
Your limit minus current balance
What Determines Your Limit
Factor
Impact on Limit
Income
Higher income = higher potential limit
Credit score
Better score = higher limit
Credit history
Longer positive history = higher limit
Existing debt
More debt = lower limit
Existing limits
High limits elsewhere may reduce new limit
Card type
Premium cards may have minimum limits
Relationship with issuer
Existing customers may get better limits
Typical Credit Limits
Profile
Typical Starting Limit
First credit card ever
£200–£1,000
Credit builder card
£200–£500
Student card
£500–£1,500
Average credit, average income
£1,500–£4,000
Good credit, good income
£4,000–£10,000
Excellent credit, high income
£10,000–£25,000+
Premium card minimum
Often £5,000–£10,000+
Credit Utilisation
What It Is
Credit utilisation is the percentage of your available credit you’re using:
Calculation
Example
Formula
Balance ÷ Credit Limit × 100
Example
£1,500 balance ÷ £5,000 limit = 30%
Why It Matters
Utilisation
Impact on Credit Score
0%
May look like you don’t use credit
1–25%
Ideal range
26–50%
Acceptable but could be better
51–75%
Negative impact
76–99%
Significant negative impact
100%+
Severe impact (maxed out)
Example Impact
Credit Limit
Balance
Utilisation
Score Impact
£5,000
£500
10%
Positive
£5,000
£2,000
40%
Neutral/slight negative
£5,000
£4,500
90%
Negative
£5,000
£5,000+
100%+
Severe negative
Requesting a Credit Limit Increase
How to Request
Method
Process
Online banking
Often self-service option
App
May have request feature
Phone
Call customer service
In writing
Formal letter to card issuer
What Issuers Consider
Factor
What They Check
Payment history with them
Have you paid on time?
How long you’ve had the card
6+ months preferred
Current income
May ask for updated details
Credit score changes
Your current creditworthiness
How you’ve used the card
Spending patterns
Soft vs Hard Search
Search Type
Providers Who Use
Soft search (no impact)
Amex, some others
Hard search (temporary impact)
Some banks
Check first
Ask before requesting
Tips for Success
Tip
Why
Wait 6+ months
Shows responsible use
Keep account in good standing
No missed payments
Know your income
May need to update it
Ask when score is good
Best chance of approval
Don’t ask too often
Once every 6-12 months
Automatic Limit Increases
Feature
Detail
Some issuers offer
Automatic increases for good customers
Criteria
Good payment history, regular use
You can decline
Opt out if you prefer lower limit
Notification
Usually told in advance
Opting Out
Preference
Action
Don’t want increases
Contact issuer to opt out
Want to control spending
Lower limit can help
Building credit
Accept increases — helps utilisation
Requesting a Limit Decrease
Reason
When It Makes Sense
Control spending
If you’re tempted to overspend
Mortgage application
Lenders consider available credit
Reduce risk
Lower exposure to fraud
Note: Reducing limits dramatically can increase utilisation ratio and hurt your score if you carry balances.
Multiple Cards and Total Credit
Scenario
Example
Card 1 limit
£5,000
Card 2 limit
£3,000
Card 3 limit
£7,000
Total available credit
£15,000
Lenders assess your total credit exposure when you apply for new credit.
What Lenders Think
Total Available Credit
Lender View
Low
May be more willing to extend credit
Very high
“Do they need more? Risk if they use it all”
Well managed
Positive — shows you can handle credit
Impact on Credit Applications
Mortgage Applications
Issue
Detail
Available credit matters
Lenders see your potential exposure
High limits
May reduce how much mortgage you can get
Strategy
Some people lower limits before mortgage application
Check with broker
Get specific advice for your situation
Credit Card Applications
Factor
Impact
High existing limits
May get lower limit on new card
Many cards
May reduce chances of approval
Well-managed credit
Positive signal
Key Takeaways
Lower utilisation = better score — keep below 30%
Higher limit helps utilisation — if you don’t increase spending
Check search type first — before requesting increase
Wait 6+ months — after getting the card
Automatic increases — usually good for your score
Mortgage planning — consider reducing limits beforehand
For more on credit scores, see our credit score guide . For first cards, see our how credit cards work guide .