Last reviewed February 2026
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Credit cards can help build your credit history when used carefully. But poor management can damage your score. The five main pitfalls are: carrying a high balance, going over your limit, withdrawing cash, maxing out your card quickly, and making multiple applications in a short period.
When used wisely, credit cards are one of the more effective tools for building a credit history. Lenders want to see evidence that you can borrow and repay responsibly, and a well-managed credit card does exactly that.
However, the reverse is also true. Certain credit card behaviours are red flags for lenders and can lower your score significantly. Here's what to watch out for, and what to do instead.
The five pitfalls, and how to avoid each one
1. Maintaining a high balance
Credit utilisation - the amount you owe compared to your credit limit - is one of the biggest factors in your score. Carrying a balance above 75% of your limit can significantly harm it.
How to avoid it
Aim to keep utilisation below 25% of your limit. If your limit is £500, that means keeping the balance under £125. Pay in full each month if possible or at least more than the minimum. You can also request a higher credit limit, but only if you're confident it won't lead to higher spending.
2. Going over your credit limit
Exceeding your credit limit triggers penalties and signals to lenders that you may be struggling to manage credit effectively. This can lower your score and make future borrowing harder.
How to avoid it
Set up balance alerts with your card provider so you're notified before you approach your limit. Disciplined budgeting and regularly checking your balance are the simplest safeguards.
3. Withdrawing cash on a credit card
Cash withdrawals on a credit card are often interpreted as a sign of financial distress. They typically attract high fees and immediate interest with no grace period, and can flag concern on your credit file.
How to avoid it
Avoid cash withdrawals unless absolutely necessary. If you regularly need cash, review your budget to understand why and consider alternatives like an overdraft or the 50/30/20 budgeting method.
4. Reaching your limit too quickly
Rapidly maxing out a card )sometimes called "credit velocity") suggests to lenders that you may be living beyond your means or desperate for credit. Doing this within a few months of opening a card can cause a noticeable drop in your score.
How to avoid it
Spread spending over time rather than exhausting your limit quickly. Plan larger purchases in advance and have a clear repayment strategy before you spend.
5. Making multiple credit card applications
Each credit application triggers a hard search on your credit file. Several hard searches in a short period suggest to lenders that you may be in financial difficulty and each one leaves a temporary mark on your report.
How to avoid it
Space out applications and only apply when you genuinely need credit. Use a soft credit check to check eligibility first, it leaves no mark on your file.
Is a credit union loan a better option?
If you're not confident managing a credit card, a credit union loan can be a lower-risk way to build credit history. Borrowing a manageable amount and repaying it consistently creates the kind of track record lenders value, without the temptation of revolving credit.
One thing to bear in mind: taking out any loan will initially dip your score due to the hard credit check and the outstanding balance. It typically takes around three months before repayments start to have a positive effect.
Key takeaways
- ✓ Credit cards can help or harm your score depending on how you use them
- ✓ Keep credit utilisation below 25% of your limit for the best impact on your score
- ✓ Going over your limit or withdrawing cash signals financial distress to lenders
- ✓ Multiple credit applications in a short period leave hard searches on your file
- ✓ Use a soft credit check to check eligibility before making a full application
- ✓ A credit union loan is an alternative way to build credit history with lower risk
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