Does an overdraft affect your credit score?
Written by
Emily Tye
Reviewed by
Amy LancashireYes, an overdraft can affect your credit score, but the impact depends entirely on how you use it. An arranged overdraft used occasionally and managed well can contribute positively to your credit history. The situations that cause damage are persistent heavy use, going beyond your agreed limit, or applying to increase your overdraft limit. Here is what lenders actually see, and why each scenario plays out differently.
Does an overdraft appear on my credit file?
Yes. Your bank will typically report your arranged overdraft to one or more of the UK's three main credit reference agencies (Experian, Equifax, and TransUnion) as a form of credit. What gets reported includes your agreed limit and your balance at the point of reporting.
Does going into my arranged overdraft affect my credit score?
Using an arranged overdraft occasionally and clearing it promptly is generally neutral, and can be mildly positive. It demonstrates that you can use available credit without over-relying on it – a signal lenders value when assessing how you manage borrowing.
The key is staying within your agreed limit, not relying on it constantly, and keeping up with any associated fees. If those conditions are met, occasional use is unlikely to concern lenders.
One nuance worth knowing: if you dip into your overdraft briefly and clear it before your bank's monthly reporting date, that temporary dip may not appear on your file at all. What gets reported is a snapshot at a specific point in time, not a running daily record.
Does persistent overdraft use affect my credit score?
Staying in your overdraft for extended periods, or consistently using a high proportion of your limit, can raise concerns with lenders even if you never breach it.
Overdraft balances count towards your overall credit utilisation (the proportion of your available credit you are currently using). High utilisation across your credit products can suggest financial strain. There is no single published threshold in the UK for overdraft utilisation specifically; lenders use their own models to assess whether your level of borrowing looks sustainable.
Does an unarranged overdraft affect my credit score?
Yes, and more significantly than arranged overdraft use. Going beyond your agreed limit, or spending without any arrangement in place, is treated differently by banks and credit reference agencies.
Unarranged overdraft use can be reported as a missed payment. If it continues, it can result in a default being registered on your credit file. Defaults are serious: they stay on your file for six years from the date they are recorded and make it harder to access credit during that period. For more on what this means in practice, read our guide on how long defaults stay on your credit file.
Does applying for an overdraft affect my credit score?
Applying for a new overdraft may involve a hard credit search, depending on your bank. Some lenders use a soft search initially, which does not affect your score; others carry out a hard search as part of the application. A hard search is visible to other lenders and causes a small, temporary dip in your score – minor for most people, but multiple applications in a short space of time can compound the effect.
It is worth checking which type of search your bank carries out before you apply. For more on the difference between the two, see our guide on soft and hard credit checks.
Does increasing my overdraft limit affect my credit score?
Requesting a limit increase may involve a hard credit search, though this varies by bank – some use soft searches for limit increases. It is worth checking with your bank before applying, so you know whether a footprint will be left on your credit file.
Does a student overdraft affect my credit score?
The same principles apply to student overdrafts as to any arranged overdraft. Using it within your agreed limit and managing it responsibly will not damage your score, and can help build a credit history if you have limited borrowing history so far.
The main thing to be aware of is what happens after graduation. Most banks do not switch directly to a standard account – they typically move your account to a graduate account first, which usually maintains an interest-free overdraft for a further two to three years. However, the interest-free limit typically reduces each year to encourage you to pay it down. Once the graduate period ends, any remaining balance moves to a standard overdraft and interest begins to apply.
Will an overdraft affect my mortgage application?
It can, even if your credit score itself looks healthy. Mortgage lenders do not rely solely on your credit score – they also review your bank statements as part of their affordability assessment.
Regularly being in your overdraft, particularly in the days leading up to payday, can raise questions about whether your income comfortably covers your outgoings. This is an affordability concern rather than a credit scoring concern, and it can affect how much a lender is willing to offer, or whether they will proceed at all.
If you are planning to apply for a mortgage, it is worth reducing your overdraft usage in the months beforehand, not just for your score, but for the picture your statements present.
You can read more about other things that can affect your credit score in our full guide.
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There are a range of financial products available that may suit your needs. We encourage you to research your options carefully and consider seeking independent financial advice before making any decisions. This blog is for informational purposes only and does not constitute financial advice.
