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.

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
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

  1. Lower utilisation = better score — keep below 30%
  2. Higher limit helps utilisation — if you don’t increase spending
  3. Check search type first — before requesting increase
  4. Wait 6+ months — after getting the card
  5. Automatic increases — usually good for your score
  6. 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.