Common misconceptions about credit scores

Key Takeaways

• A credit score is a limited indicator of past credit behaviour, not a full measure of your financial health. Lenders consider your credit score alongside income, deposit size, existing commitments and overall affordability when assessing mortgage affordability.
• Many common beliefs about credit scores are incorrect. For example, checking your own score doesn’t lower it, income doesn’t directly affect scores and being debt free doesn’t automatically mean a strong credit profile.
• Credit scores reflect your spending patterns over time, such as repayment history, credit usage and length of credit history.

What is a credit score and why does it matter?

A credit score is a numerical summary of how you’ve managed credit in the past, based on information held in your credit report. In the UK, lenders may use it as part of their affordability assessments to determine how reliably you’ve handled borrowing and repayments historically.

When applying for a mortgage, your credit score can help lenders build a picture of your financial behaviour, but it’s only one part of the decision. They will also consider factors such as your income, regular outgoings, existing debts, the size of your deposit and the value of the property you want to purchase.

Understanding what a credit score represents – and its limits – can help you see where it fits into the wider mortgage application process.

Misconception 1: checking your credit score lowers it

Checking your own credit score doesn’t reduce it. This is a common misunderstanding that can stop people from reviewing their credit information.

In the UK, there are two main types of credit checks:

• Soft checks show when you look at your own credit score or when a lender runs an eligibility check. These aren’t visible to other lenders and have no impact on your score.
• Hard checks happen when you apply for credit, such as a mortgage, loan or credit card. These are recorded on your credit file and may have a temporary effect on your score.

Viewing your own credit score is a soft check and can help you understand what lenders may see when assessing an application.

Misconception 2: you have one credit score

There’s no single credit score in the UK. Instead, your credit information is held by different credit reference agencies, such as Experian, Equifax and TransUnion. Each may hold slightly different data about your financial history.

Because each agency uses its own scoring model and data sources, your credit score can vary between them. This is normal and doesn’t mean one score is right or wrong.

Misconception 3: earning more automatically means a higher credit score

Your income isn’t recorded on your credit report and doesn’t directly affect your credit score. Earning more money won’t necessarily increase your score, as credit scores are based on how you use and manage credit, rather than how much you earn. This can include things like paying bills on time, keeping borrowing within limits and maintaining a stable credit history.

While a higher income may make it easier to afford loan repayments, your credit score reflects your financial behaviour over time, not your salary. Lenders consider income separately as part of an overall affordability assessment, rather than as a factor in your score itself.

Misconception 4: being debt-free guarantees a good credit score

Being debt free doesn’t automatically mean you’ll have a strong credit score. That’s because credit scores are built around evidence of how you manage borrowing over time.

If you’ve never used credit or haven’t done so for a long time, there may be limited data available on your credit report. This can sometimes make it harder for lenders to build a picture of how repayments have been handled in the past.

Credit scores are often associated with balance and evidence of responsible use, such as occasional borrowing, timely repayments and borrowing levels that remain manageable. In this context, scores tend to reflect patterns of financial behaviour rather than the absence of debt.

Misconception 5: missed payments stay on your record forever

Missed payments don’t usually remain on your credit report permanently. In the UK, negative information such as missed or late payments, defaults and County Court Judgments (CCJs) is typically recorded for a set period.

Over time, the impact of older missed payments can reduce, particularly where newer information on a credit report shows more positive or consistent activity. Recent credit behaviour is often viewed alongside historic information when a credit record is assessed.

This means your credit record isn’t fixed — it can change as older information drops off and is replaced by more up‑to‑date activity.

What influences your credit score?

Credit scores are generally influenced by patterns in financial behaviour over time, rather than single actions or personal details such as age or income. While different scoring models exist, several common factors are often considered, including:

• Payment history. Records showing payments made on time can contribute positively to a credit profile, while missed or late payments may be reflected less favourably.
• Credit utilisation. This looks at how much of the available credit is being used relative to overall limits, which can provide context around borrowing habits.
• The length of your credit history. A longer, well‑maintained record can offer more information about how credit has been managed over time.

Other elements, such as how often you apply for credit and the credit types you use, may also be considered. Together, these factors help lenders build an overall view of your borrowing behaviour.

For those looking to understand how mortgages can still be considered when a credit history includes past issues, our guide on getting a mortgage with bad credit provides further background.

Disclaimer:

This article is for general informational purposes only and does not constitute financial advice. We would always recommend that advice is taken from a regulated financial adviser regarding your specific circumstances.