How Your Credit Score Affects Your Financial Future
Published 8th of April 2016·Updated 31 March 2026
Reviewed by: Reviewed for accuracy April 2026
Your credit score affects your ability to borrow money, the interest rate you pay, and in some cases whether you can get a mobile phone contract, rent a property, or be considered for certain jobs. A strong credit score opens up better financial products at lower cost; a weak one limits your options and increases what you pay.
Short Summary
Your credit score is calculated by three credit reference agencies in the UK: Experian, Equifax and TransUnion. Each uses a slightly different scale and scoring model. Lenders use data from one or more of these agencies when assessing your application.
A good credit score does not guarantee approval for any product. Lenders also assess your income, existing debts and affordability when making decisions.
Negative information such as missed payments, defaults and County Court Judgements (CCJs) stays on your credit file for six years. Positive information, such as a long history of on-time payments, helps counterbalance this over time.
You can check your credit report for free through ClearScore (Equifax data), Credit Karma (TransUnion data) and Experian's free service. Checking your own report does not affect your score.
What is a credit score and how is it calculated?
Your credit score is a number generated by a credit reference agency that summarises your credit history. It is based on data in your credit report, which records how you have managed credit over the past six years.
The main factors that influence your credit score are:
| Factor | What it reflects |
|---|---|
| Payment history | Whether you pay bills and credit on time |
| Credit utilisation | How much of your available credit limit you are using |
| Length of credit history | How long your accounts have been open |
| New credit applications | How recently and how often you have applied for credit |
| Types of credit | Whether you have a mix of credit cards, loans and other products |
In the UK, credit scores are not universal. Experian scores on a scale of 0 to 999, Equifax on 0 to 1,000, and TransUnion on 0 to 710. Lenders do not see your consumer-facing score directly; they use your underlying credit data alongside their own internal criteria.
How does your credit score affect borrowing?
Your credit score determines which credit products you can access and at what cost. Lenders use it to assess the risk of lending to you. A higher score signals a lower risk of default, which means better terms.
The practical difference between a good and a poor credit score is significant. Someone with an excellent Experian score (above 960) applying for a personal loan may be offered 6 to 8 per cent APR. Someone with a poor score applying for the same product may be offered 40 to 60 per cent APR, if approved at all. On a £5,000 loan over three years, that difference amounts to hundreds of pounds in additional interest.
Mortgage lenders including Barclays, Halifax, Nationwide and HSBC use your credit score as one factor in determining whether to approve an application and at what interest rate. A poor credit score typically results in a higher rate or a larger required deposit.
How does your credit score affect renting a property?
Letting agents and landlords in the UK routinely carry out credit checks as part of their tenant referencing process. Agencies such as Experian and Equifax provide referencing reports that show CCJs, IVAs, bankruptcies and payment history.
A poor credit score does not automatically mean you will be refused a tenancy, but it may mean the landlord asks for a larger deposit, a guarantor, or several months of rent paid in advance. Some landlords, particularly those working through large letting agencies, will decline applicants with recent defaults or CCJs.
If your credit history is causing problems with renting, providing references from a previous landlord and evidence of stable income can help offset concerns about your credit file.
Does your credit score affect your employment prospects?
Some employers in the UK carry out credit checks as part of their recruitment process. This is most common in financial services, banking, the legal sector and certain government roles. Roles regulated by the FCA may require candidates to disclose financial difficulties including IVAs, bankruptcies or CCJs.
A standard DBS check does not include credit history. However, a separate financial background check, often used for senior roles or roles with access to client funds, will reveal negative entries on your credit file.
If you are applying for roles where credit checks are conducted, be transparent about any issues in your credit history. Many employers are more understanding of a candidate who discloses and explains a financial difficulty than one who does not mention it and is then shown a negative credit report.
How can you protect and improve your credit score?
Protecting your credit score comes down to consistent habits over time:
- Pay every bill and credit commitment on time, every month
- Keep credit card balances below 25 per cent of your limit
- Register on the electoral roll at your current address
- Check your credit reports regularly and dispute any errors promptly
- Avoid applying for multiple credit products in a short period
- Use eligibility checkers (which use soft searches) before applying for credit
If you are already in financial difficulty, the most important thing is to address the problem rather than avoid it. Missed payments compound quickly, and early contact with lenders often results in more favourable arrangements than waiting until a default is issued. StepChange (0800 138 1111) provides free, impartial debt advice and can help you prioritise debts and communicate with creditors.
Frequently Asked Questions
What is a good credit score in the UK? On Experian's scale (0-999), a score above 881 is "good" and above 960 is "excellent". On Equifax's scale (0-1,000), above 531 is "good". On TransUnion's scale (0-710), above 604 is "good". Each agency uses different bands, so focus on which band you are in rather than the absolute number.
Can a poor credit score stop you getting a mortgage? Yes. Mainstream mortgage lenders including Barclays, Nationwide and Halifax will decline applicants with a poor credit score or recent negative entries such as defaults, CCJs or an IVA. Specialist adverse credit mortgage lenders can sometimes help, but expect a higher interest rate and a larger deposit requirement. Speaking to a whole-of-market mortgage broker is the best starting point.
Does your credit score affect your car insurance premium? Some insurers in the UK use a soft credit check as part of their pricing process. A poor credit score may result in a higher premium from some providers. This is not universal across all insurers. Shopping around using comparison sites such as Compare the Market or GoCompare helps you find the most competitive rate regardless of your credit score.
How long does negative information stay on your credit file? Most negative information, including missed payments, defaults, CCJs, IVAs and bankruptcy, stays on your credit file for six years from the date of the event. After six years, it drops off automatically and no longer affects your score.
Can you have a credit score if you have never borrowed money? You can have a credit record, but it will be thin rather than strong. With no borrowing history, lenders have little data to assess your creditworthiness, which can also lead to rejections. Building a modest credit history through a credit builder card or a pay-monthly mobile contract gives lenders the data they need to assess you confidently.