Do joint accounts affect your credit score?

5 min read

Updated: Jul 14, 2026

Written by

Emily Tye

Reviewed by

Amy Lancashire

Opening a joint account doesn't merge your credit scores or change them on its own. You each keep your own credit file and your own score. What it does do is create a financial association between you and the other account holder, which means lenders can look at both of your credit histories when either of you applies for credit.

Shared borrowing is different. An overdraft on the account, or a joint loan or mortgage you take out together, shows on both credit reports and can affect both scores.

Whether a joint account helps or harms you comes down to how it's managed and what the other person's history looks like.

What is a financial association?

A financial association, sometimes called a financial link, is a connection between two people's credit files. It's created when you open a joint account or take out credit together, such as a joint current account, a joint loan or a joint mortgage. It can also form when you act as someone's guarantor.

Once the link exists, it sits on your credit report at the UK's three credit reference agencies: Experian, Equifax and TransUnion. Lenders use these reports to decide whether to lend, so an association means the other person's credit history can be reviewed alongside yours.

When a joint account can affect your score

A few things can show up on your credit file or influence a lender's decision:

Shared borrowing: If the account has an overdraft, or you take out a joint loan or mortgage, that's shared credit. How it's managed appears on both credit reports. If you're unsure how this works, read whether an overdraft affects your credit score.
Missed payments: If either of you misses a payment on shared borrowing, it can show on both files and stay there for up to six years. Here's how long missed payments stay on your credit report.
Your applications for solo credit: Because you're associated, a lender can look at the other person's history when you apply on your own. If they have adverse credit markers such as a CCJ or default, a lender may see you as higher risk.

Everyday banking, like paying in your salary or spending on a debit card, doesn't affect your credit score. It's shared credit and the association that matter.

Can a joint account improve my credit score?

Not on its own. A joint current account doesn't build your score just by being open. What can help is shared borrowing that's managed well: an overdraft on the account, or a joint loan or mortgage you take out together, paid on time, builds a positive repayment history on both of your files, the same as any credit you handle responsibly. There's more in our guide to what affects your credit score and our tips on ways to improve your credit score.

What a joint account won't do is lift your score just because the other person has good credit. Being linked to someone with a strong history doesn't transfer their score to you.

What doesn't create a financial link

On their own, none of these create a financial association:

Getting married or entering a civil partnership
Living at the same address
Sharing a surname
Splitting rent or household bills through separate accounts

How do I break a financial association?

Closing the joint account isn't enough on its own. The association can stay on your credit file until you formally remove it. To break the link:

Close any joint accounts and settle any shared borrowing. You'll usually need no open joint products (accounts, loans or mortgages) before the link can be removed.
Apply for a notice of disassociation. Contact each of the three credit reference agencies (Experian, Equifax and TransUnion) and ask them to remove the link. It's free.
Confirm the link has ended. You'll declare there's no active financial connection, and the agency may ask for further information to support your request.

Once the notice is in place, the other person's credit history no longer affects your applications. MoneyHelper has more detail on managing joint accounts and disassociation.

This matters most when a relationship ends. If you separate, sorting the disassociation protects your credit file from someone you're no longer sharing money with.

FAQs

Does closing a joint account affect my credit score?

Closing the account doesn't directly change your score, and it doesn't automatically break the financial link either. In most cases you'll need to close any shared products first, then apply for a notice of disassociation to remove the link.

Can I open a joint account with someone who has bad credit?

Yes, but it's worth checking both credit files first. Once you're linked, their history can be taken into account when you apply for credit on your own, so it's a decision worth making with the full picture.

Does my partner's bad credit affect mine?

Not directly. Their score stays separate from yours. But once you're financially associated, a lender can review their credit history when you apply, which could affect whether you're approved.

Will opening a joint account show on my credit report?

The financial association will show on your report. The account itself only appears as borrowing if it includes credit, such as an overdraft.

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.

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