Debt in Divorce: Who's Responsible for What You Owe Together

Last updated: October 2026.

Debt is just as much a part of a divorce settlement as assets, yet it’s often given less attention until it becomes a source of dispute. Understanding how joint and individual debts are actually treated helps avoid unpleasant surprises after the fact.

A joint debt - a joint mortgage, a joint loan, a joint credit card - makes both parties fully liable to the lender for the entire balance, and getting divorced doesn’t change this legal liability on its own (see our dedicated article on transferring, selling, or staying on a joint mortgage during divorce, which covers the mortgage-specific version of this in more detail). Only a formal restructuring - paying off the debt, transferring it to one party’s sole name with the lender’s agreement, or refinancing - actually changes who the lender can pursue.

Debts in one party’s sole name

Debt held solely in one spouse’s name is generally that spouse’s individual responsibility to the lender, but is still typically taken into account as part of the overall matrimonial financial picture - a large sole debt run up by one spouse (particularly if it funded shared family expenses) can genuinely affect how the wider settlement is divided, even though the lender itself can only pursue the named account holder - and if that debt has genuinely become unmanageable, formal routes like a debt management plan or an IVA may need to be factored into the wider settlement conversation too.

A financial consent order (see our dedicated article) should explicitly address how existing debts are allocated between the parties as part of the overall settlement - this doesn’t change what a lender is legally entitled to pursue from a joint account holder, but it does create a binding agreement between the ex-spouses themselves about who’s ultimately responsible, giving the other party a route to seek reimbursement if they end up paying a debt the settlement allocated to their ex-spouse.

The risk of one party running up debt during the separation

It’s not uncommon for one spouse to increase spending or borrowing during a lengthy separation period, sometimes deliberately to reduce the assets available for division. Courts can, in some circumstances, look at ‘add back’ arguments - effectively adding notional value back into the matrimonial pot if one party has recklessly or deliberately dissipated assets or run up debt - though this requires clear evidence and isn’t automatically applied to any spending during separation.

Practical steps to protect yourself during separation

  • Consider separating joint accounts and credit facilities relatively early in the separation process, to limit ongoing exposure to a partner’s spending decisions you no longer have visibility or control over.
  • Check your credit report for joint accounts you may have forgotten about, since these represent ongoing shared liability even if you’re no longer using them.
  • Keep records of significant debts and spending during the separation period, in case they become relevant to the eventual financial settlement discussion.
  • Notify joint account providers of the separation where appropriate, particularly for accounts with an overdraft facility, to prevent one party unilaterally running up shared debt.

Debt as part of the overall ‘needs’ assessment

Since divorce settlements in England and Wales are driven by overall needs and fairness (see our dedicated article on how money is divided) rather than a mechanical asset-by-asset split, debts are properly considered as part of that same holistic assessment - a settlement that gives one party more assets but also allocates them significantly more debt isn’t automatically unfair, but the balance needs to be genuinely assessed rather than debts being an afterthought tacked on at the end.

The bottom line

Joint debts remain a shared legal liability to the lender regardless of divorce, and should be explicitly addressed - including who’s ultimately responsible between the ex-spouses themselves - within the financial consent order. Separating joint accounts and credit facilities early in the separation process limits ongoing exposure to decisions you no longer have any control over.

This article is provided for general information and does not constitute legal or financial advice. Speak to a family law solicitor about how debt should be addressed in your specific financial settlement.

Sources

  • Resolution
  • GOV.UK divorce financial settlement guidance
  • MoneyHelper.
Marsha Marcus-Kennedy

Marsha Marcus-Kennedy

October 11th 2026