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Learn about Experian, Equifax, and TransUnion, and how credit reference agencies impact your financial profile.
Have you ever wondered where lenders get the information to approve or decline a credit application? The answer lies with a handful of powerful companies known as Credit Reference Agencies (CRAs).
These agencies are the keepers of your financial history. Understanding the role of credit reference agencies is the first step toward taking control of your credit profile. This guide explains who the main players are in the UK, what they do, and how their data shapes your financial life.
A Credit Reference Agency (CRA), also known as a credit bureau, is a private company that securely collects, stores, and shares information about how individuals manage credit and bills.
Lenders (like banks and credit card companies) report your financial behaviour to these agencies every month. In return, when you apply for a new product, the CRAs allow lenders to review your credit history to assess your reliability as a borrower. This data is what they use to calculate your credit score.
The UK credit reporting market is dominated by three major agencies: Experian, Equifax, and TransUnion. While they all do a similar job, they are separate companies and the information they hold can differ.
Experian
Experian is one of the largest and most widely used CRAs in the UK.
Equifax
Equifax is another global player with a strong presence in the UK.
TransUnion
Formerly known as Callcredit in the UK, TransUnion is the third major agency.
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All three agencies collect similar types of information to build your credit report.
This includes:
Understanding how lenders use credit data is key. They don’t just look at the three digit score; they analyse the details in your report.
It’s vital to check your report with all three agencies regularly.
Discover more practical tips to build a stronger financial profile. Check out our Credit Scores page to find out more ways to improve your credit rating.
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Do all lenders use the same credit reference agency?
No. Most lenders have partnerships with one or two main agencies they use for applications. Very few use all three.
Why is my score different between Experian, Equifax, and TransUnion?
There are two reasons. First, some of your lenders may only report to one or two of the agencies, so the underlying data they hold on you might be slightly different. Second, each agency uses its own unique algorithm to calculate your score from that data.
How often is my credit report updated?
Lenders typically send updates to the CRAs once a month. This means your report will usually be updated every 30-45 days.
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