Tracing Trust Assets UK: Following Misapplied Trust Property Through Equity

Updated 31 May 2026 · 9 min read · Trust Law & Equity

When a trustee misapplies trust funds — spending them, mixing them, or using them to buy assets in their own name — the beneficiaries are not limited to a personal debt claim. Equity allows them to trace the original funds through successive transactions and assert a proprietary interest in whatever those funds became.

What Is Tracing?

Tracing is the process of following an asset — or its traceable substitute — through a series of transactions to identify its current form. It is not a remedy but a tool of identification: once the claimant has traced their original asset into the defendant’s hands, they can then assert either a proprietary remedy (constructive trust, charge, or lien) or a personal remedy (restitution) over the identified asset.

English law recognises two forms of tracing: common law tracing (which cannot follow money through a mixed bank account) and equitable tracing (which can, using the presumptions developed in Re Hallett and Foskett v McKeown). Almost all trust tracing uses the equitable rules.

The Core Rules: Re Hallett (1880) and Foskett (2001)

Re Hallett’s Estate: First-Out-Own-First

In Re Hallett’s Estate (1880) 13 Ch D 696 (CA), a solicitor mixed client trust funds with his own money in a single bank account, then withdrew money for his own purposes. The court held that withdrawals by the trustee are presumed to come from the trustee’s own money first, leaving the trust funds in the account for as long as possible. The beneficiaries can therefore trace their money into the remaining balance and claim a proprietary charge for the amount still represented.

This ‘first-out-own-first’ presumption favours the beneficiaries: the trustee is treated as spending their own money before touching the trust fund, preserving the beneficiary’s tracing claim against the balance.

Foskett v McKeown: Proportionate Share of Gains

In Foskett v McKeown [2001] 1 AC 102 (HL), trust money had been used to pay two of five annual life insurance premiums. The policy paid out on death. The House of Lords held that the beneficiaries were entitled to a proportionate share of the pay-out (2/5ths) — not merely a return of the premiums paid with trust money. Lord Millett confirmed that where trust money is used to buy or improve an asset, the beneficiary can claim a proportionate share of the asset — tracking the uplift in value, not just the original contribution.

Where mixed funds are used to purchase a single asset, the beneficiary can choose between: (a) a charge for the amount contributed (if the asset has fallen in value) or (b) a proportionate beneficial interest in the asset (if it has risen in value) — whichever produces the better recovery.

The Lowest Intermediate Balance Rule

Tracing into a fluctuating bank account is limited by the lowest intermediate balance (LIB) rule. The beneficiary can only trace up to the lowest balance the account reached after the trust money was mixed in. If:

• Trust money of £30,000 is paid into an account with a balance of £10,000 (total: £40,000)
• The account falls to £5,000 (all trust money could have been spent)
• The trustee later pays in £50,000 of their own money (account rises to £55,000)

The beneficiary can only trace £5,000 — the lowest intermediate balance. The later £50,000 deposit is new money, not a replenishment of the trust fund. The claimant cannot trace into new deposits made after the trust funds were fully dissipated.

Defences to Tracing Claims

Three main defences can defeat an equitable tracing claim:

1. Dissipation — if the traced assets have been spent entirely on consumables (food, entertainment, services) leaving nothing identifiable, the tracing chain ends and only a personal claim remains.
2. Bona fide purchaser for value without notice — a third party who paid market value for an asset in good faith and without notice of the trust’s claim takes free of the equitable interest. This is the most important limit on tracing in practice.
3. Change of position — a recipient who received the asset innocently and has changed their position in good faith in reliance on the receipt (spent money they would not otherwise have spent) may have a defence to the extent of the change of position.

Tracing in Estate Administration

Tracing is relevant in estate disputes where:

• An executor has wrongly paid themselves or a third party from estate assets — beneficiaries can trace into the recipient’s hands
• An executor mixed estate funds with their own — the Hallett/Foskett principles determine the estate’s proportionate share of the remaining fund
• An executor distributed assets prematurely before paying debts — creditors may trace into the distributed assets (subject to the bona fide purchaser defence)
• A de son tort executor (intermeddler without authority) received estate assets — they hold as constructive trustee, making tracing directly available

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