Joint Debt Rules: Who Is Liable on a Joint Loan or Credit Card

Disclaimer: This guide explains how UK joint debt rules work. It does not constitute financial, legal, or debt advice. If you are dealing with a joint debt situation, consider speaking to a qualified adviser or contacting a free debt charity such as StepChange or Citizens Advice.

Joint debt is one of the most widely misunderstood areas of UK personal finance. Many people assume that if two people take out a loan together, each person is responsible for half the debt. That is not how the law works.

Under UK consumer credit law, when two or more people sign a joint credit agreement, each borrower becomes individually responsible for the entire debt — not just their share. This principle, known as "joint and several liability," means that a creditor can pursue any single borrower for the full outstanding amount. It applies across the UK, though procedure and limitation rules differ by jurisdiction.

This guide explains the legal rules governing joint debts, the position of additional cardholders on [credit card](/guide/how-to-move-credit-card-debt-to-0-percent-without-making-it-worse) accounts, what happens to joint debts during divorce or insolvency, and the limitation periods that apply.

If you have signed a joint credit agreement — such as a joint loan, joint mortgage, or joint overdraft — you are legally responsible for 100% of that debt. The creditor does not have to split the debt between borrowers. If the other person stops paying, the creditor can ask you to repay the full amount.

Most UK credit cards are single-account products with a primary cardholder who holds sole legal liability; additional cardholders are usually not contractually liable. A small number of products may offer joint account structures, so the credit agreement should be checked. If you are an additional or authorised cardholder on someone else's credit card account, you are typically not legally liable for that debt — even if you made the purchases.

Marriage or civil partnership does not, by itself, make one person liable for the other's individual debts. A debt taken out in one person's name remains that person's sole responsibility unless the other person has also signed the agreement.

The core principle underpinning joint debt in the UK is "joint and several liability." This is a general common-law principle reflected in how joint agreements are drafted and enforced, including regulated consumer credit agreements under the Consumer Credit Act 1974. The Financial Conduct Authority (FCA) regulates consumer credit in the UK.

Joint and several liability means that when two or more people sign a single credit agreement, the creditor has the legal right to pursue any one of those borrowers for the full amount owed. The creditor is not required to divide the debt proportionally or to pursue all borrowers equally. If one borrower pays the full amount, they may have a separate legal claim for contribution against the other borrower — but this is a matter between the borrowers themselves and does not affect the creditor's right to full repayment from either party.

This principle applies to joint loans, joint mortgages, and joint overdrafts — any credit agreement where more than one person has signed.

How credit cards differ. Credit card accounts in the UK are structured differently. Most UK credit cards are single-account products with a primary cardholder; additional cardholders are usually not contractually liable. A small number of products may offer joint account structures, so the credit agreement should be checked. What are sometimes marketed as "joint" credit cards are usually accounts where one person is the primary cardholder and others are "additional authorised cardholders" or "secondary cardholders." The primary cardholder alone signed the credit agreement and is solely liable for the debt. An additional cardholder is usually not a party to the credit agreement and is typically not legally liable for the debt; liability normally sits with the primary cardholder.

The role of the FCA. The Financial Conduct Authority regulates consumer credit through its Consumer Credit sourcebook, known as CONC. CONC 5.2A contains rules on creditworthiness assessments. Under CONC 5.2.4G (guidance), where there are joint borrowers, lenders should consider whether to assess each borrower's financial position separately as well as collectively, precisely because each borrower is typically jointly and severally liable for the full debt.

• What creates joint and several liability. The trigger for joint and several liability is signing a joint credit agreement. All parties must sign the agreement. If a debt was taken out in one name without another person's knowledge or signature, that person may dispute liability — though in most cases this may require legal action to resolve.
• Marriage and individual debt. Marriage or civil partnership does not automatically make one spouse liable for the other's individual debts. Debts taken out in one person's name remain that person's sole responsibility. Courts may consider individual debts during divorce proceedings under the Matrimonial Causes Act 1973, but this does not transfer the contractual liability owed to the creditor.
• Additional cardholders are usually not liable. Being added as an additional cardholder or authorised user on a credit card usually creates no legal liability for the additional cardholder. The primary cardholder normally remains solely liable. The additional cardholder typically did not sign a credit agreement and is usually not a party to the contract with the card issuer.
• Guarantor liability. A guarantor is not a joint borrower, but becomes liable for a debt if the primary borrower defaults. A guarantor must have a signed, written guarantee agreement. FCA rules require lenders to assess the potential impact on guarantors before accepting the arrangement. For a detailed breakdown of these risks, see our guide on [guarantor loans and the risks involved](/guarantor-loans-risks).
• Limitation periods (statute barring). Most consumer credit debts — including credit cards, personal loans, store cards, and catalogue accounts — usually become "statute barred" after six years from when the cause of action accrued. The limitation period can be restarted by a payment or a written acknowledgment signed by the debtor. After this period, the creditor cannot obtain a court judgment to enforce the debt. For mortgage debts after property repossession, the limitation period is six years for interest and 12 years for the principal (capital amount).
• For joint liabilities, limitation effects can be complex. A payment or written acknowledgment by one party may affect limitation, but it will not always bind every other liable person in every scenario.
• Section 75 of the Consumer Credit Act 1974. Section 75 creates a separate form of joint and several liability — between the creditor and the supplier — for claims involving misrepresentation or breach of contract. This applies to single items costing between £100 and £30,000. These thresholds apply specifically to Section 75 claims and are distinct from the joint and several liability between co-borrowers discussed in the rest of this guide.

"We split everything 50/50, so we're each liable for half." This is not how joint and several liability works. Regardless of any private arrangement between borrowers about how they divide payments, the creditor retains the legal right to pursue either borrower for the full amount. An agreement between the borrowers does not bind or limit the creditor.

"We're not married, so they can't come after me for my partner's debts." Marriage is not the relevant factor. What matters is whether you signed the credit agreement. If you did not sign, you are generally not liable — whether or not you are married to the borrower. Conversely, if you did sign a joint agreement with someone you are not married to, you are fully liable for the entire debt.

"I'm just an additional cardholder, so I must owe something." Additional authorised cardholders on a credit card are usually not legally liable for the debt. Even if the additional cardholder made all of the purchases on the card, the credit card company typically cannot require them to repay. Liability normally sits with the primary cardholder.

"The divorce settlement said they would pay the joint loan." A divorce court may order one party to take responsibility for a joint debt, but this does not affect the creditor's right to pursue either party. The creditor is not bound by the terms of the divorce settlement. Both parties remain jointly liable until the debt is fully repaid, refinanced, or transferred so that one party's name is removed from the agreement.

• Disputed liability where consent was not given. In most cases, if a partner took out joint debts without the other person's knowledge or signature, the person who did not sign may be able to dispute their liability. The disputing person must be able to show they did not sign the credit agreement. This may require legal action. If fraud is proven, the creditor may release the disputing party from liability.
• Utility bills and household debts. According to published guidance, utility bills such as council tax, water, and energy may create joint liability even if only one person's name is on the account, depending on the circumstances. For council tax, liability is determined by statutory "hierarchy of liability" rules and can be joint in some situations. For water, liability depends on the charging basis and occupancy/contract terms; it is not automatically shared by all occupants. For energy, liability is usually contractual (the named account holder or contracting party), but responsibility can be disputed where the wrong person is billed or where occupancy or contract formation is unclear.
• Insolvency and bankruptcy. When one party to a joint debt enters an insolvency procedure — whether an individual voluntary arrangement (IVA), debt relief order (DRO), or bankruptcy — the bankrupt party is released from personal liability on discharge (subject to exceptions). The creditor may then pursue the remaining joint debtor for up to 100% of the outstanding balance. Joint bankruptcy is only available to business partners, not to couples. Each individual must petition for bankruptcy separately and pay separate fees.
  • The typical timeframe for bankruptcy discharge is usually around 12 months from the date of the bankruptcy order, at which point the discharge is automatic. Once discharged, the bankrupt party is released from personal liability for joint debts (subject to exceptions), but the creditor can continue to pursue the remaining joint debtor for up to 100% of the outstanding balance.
• Scotland. Scotland has different rules in several areas. Bankruptcy in Scotland is known as sequestration, and there are different insolvency procedures available, including Protected Trust Deeds and the Minimal Asset Process. Scotland uses prescription rather than "statute barring" terminology; many unsecured obligations prescribe after five years, subject to exceptions.

Joint and several liability has significant practical consequences that are worth understanding clearly.

If two people take out a joint loan and one person stops making payments — whether through choice, financial difficulty, or the breakdown of a relationship — the creditor does not have to pursue that person first or divide the remaining balance between the two borrowers. The creditor can pursue the other borrower for the full outstanding amount.

During divorce or the dissolution of a civil partnership, both parties remain jointly liable to the creditor regardless of what the divorce settlement says. A court order that directs one party to pay a joint debt creates an obligation between the two former partners, but it does not release the other party from liability to the creditor. To fully remove one party's liability, the debt must be refinanced or transferred so that one party's name is removed from the credit agreement entirely.

Where one party enters an insolvency procedure such as bankruptcy, the creditor may pursue the remaining joint debtor for up to 100% of the outstanding balance. This can come as a considerable shock if the remaining party assumed the debt would be shared or written off.

The statute barring rules also carry practical significance for joint debts. For joint liabilities, limitation effects can be complex. A payment or written acknowledgment by one party may affect limitation, but it will not always bind every other liable person in every scenario. This means one borrower's actions could, in some circumstances, extend the period during which the other borrower remains exposed to enforcement.

Does signing a joint credit agreement make me responsible for the full debt, not just half? Yes. Under the principle of joint and several liability, each borrower on a joint credit agreement is individually responsible for 100% of the debt. The creditor can pursue any single borrower for the full amount.

Are there joint credit cards in the UK? Most UK credit cards are single-account products with a primary cardholder who is solely liable. A small number of products may offer joint account structures, so the credit agreement should be checked. Other people may be added as additional authorised cardholders, but they are usually not legally liable for the debt.

Am I liable for charges made by an additional cardholder on my credit card? Yes. As the primary cardholder, you are solely responsible for all charges on the account, including those made by any additional authorised cardholders you have added.

Does getting married make me liable for my spouse's existing debts? No. Marriage or civil partnership does not automatically make one spouse liable for the other's individual debts. A debt taken out in one person's name remains that person's sole responsibility.

What happens to a joint debt if we divorce? Both parties remain jointly liable to the creditor regardless of what the divorce settlement says. A court may order one party to take responsibility for the debt, but this does not release the other party from liability to the creditor. The debt must be refinanced or transferred to remove one party's name from the agreement.

What happens to a joint debt if the other person goes bankrupt? When one party to a joint debt is discharged from bankruptcy — usually around 12 months after the bankruptcy order — they are released from personal liability for the debt (subject to exceptions). The creditor may then pursue the remaining joint debtor for up to 100% of the outstanding balance.

Can I dispute a joint debt I didn't know about? In most cases, if a debt was taken out without your knowledge or signature, you may be able to dispute liability. You would need to demonstrate that you did not sign the credit agreement. This may require legal action, and if fraud is proven, the creditor may release you from liability.

How long can a creditor pursue me for a joint debt? For most consumer credit debts, the limitation period is usually six years from when the cause of action accrued. For mortgage capital after repossession, the period is 12 years. The limitation period can be restarted by a payment or a written acknowledgment signed by the debtor. For joint liabilities, limitation effects can be complex — a payment or written acknowledgment by one party may affect limitation, but it will not always bind every other liable person in every scenario.

Does a guarantor have the same liability as a joint borrower? Not exactly. A guarantor is not a joint borrower but becomes liable for the debt if the primary borrower defaults. A signed, written guarantee agreement is required. FCA rules require lenders to assess the potential impact on guarantors.

Do the rules differ in Scotland? According to published guidance, Scotland has different rules in certain areas. Bankruptcy operates under different procedures (sequestration, Protected Trust Deeds, Minimal Asset Process). Scotland uses prescription rather than "statute barring" terminology; many unsecured obligations prescribe after five years, subject to exceptions.

• Joint and several liability means each borrower on a joint credit agreement is individually liable for the full debt — not just their share. A creditor can pursue any single borrower for 100% of the amount owed.
• Most UK credit cards are single-account products with a primary cardholder. The primary cardholder is solely liable for all charges, and additional authorised cardholders are usually not legally liable.
• Marriage does not create liability for a spouse's individual debts. Only signing a credit agreement creates liability.
• Divorce settlements do not override joint liability to creditors. Both parties remain jointly liable until the debt is refinanced or one party's name is removed from the agreement.
• If one party to a joint debt enters bankruptcy, the creditor may pursue the remaining joint debtor for up to 100% of the outstanding balance.
• The standard limitation period for most consumer credit debts is usually six years from when the cause of action accrued. For mortgage capital after repossession, it is 12 years. The limitation period can be restarted by a payment or a written acknowledgment signed by the debtor. For joint liabilities, limitation effects can be complex — a payment or acknowledgment by one party may affect limitation, but it will not always bind every other liable person in every scenario.

Related: Debt After Relationship Breakdown | How to Split Joint Bills After a Breakup | Financial Associations and Your Partner's Credit.