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SQE – Equity and Trust – Rules Governing Equitable Tracing: Unmixed Funds
Introduction
Equitable tracing is the process by which beneficiaries identify and follow trust property into its substitutes or proceeds after a breach of trust has occurred. The rules governing tracing are particularly important because they allow beneficiaries to preserve proprietary rights even where trust property has been transferred, sold, exchanged, or converted into another form.
The simplest tracing situations arise where the trust property remains:
unmixed.
This means that the trust property has not been combined with other funds or assets. In such circumstances, tracing is relatively straightforward because the property or its substitute remains identifiable.
Equity therefore allows beneficiaries to follow the property through various transactions and recover either the original asset, substitute property, or proprietary interests arising from it.


Return of the Original Property
The most straightforward situation occurs where the trustee wrongfully removes trust property but the property remains identifiable and unchanged.


Case Scenario
Assume Daniel is trustee of the Carter Family Trust.
Daniel improperly removes a valuable painting from the trust and hangs it in his own home.
The painting remains:
  • identifiable;
  • unchanged;
  • and still in Daniel’s possession.


Remedy
The beneficiaries may seek:
✅ return of the painting itself.
The court may order restoration of the original trust property back into the trust.
Because the property remains identifiable and unmixed, tracing is simple and direct.


Transfer to a Third Party
Tracing also remains possible where the trustee transfers the trust property to another person.


Example
Suppose Daniel gives the painting as a gift to his sister Emma.
Emma:
  • did not pay for the painting;
  • and had no knowledge that it belonged to the trust.


Result
The beneficiaries may still:
✅ trace the painting into Emma’s hands.
Because Emma is merely an innocent volunteer and did not provide value, she does not obtain protection against tracing claims.
The painting may therefore be returned to the trust.


Sale of the Property
Equity also permits tracing into substitute property where the trustee sells trust assets.


Example
Suppose Daniel sells the painting for:
£200,000.
The beneficiaries may trace their equitable interest from:
  • the painting;
    into
  • the sale proceeds.
The beneficiaries’ proprietary interest therefore attaches to the money substituted for the original trust property.


Tracing Into the Purchaser’s Hands
It may also be possible to trace into the hands of the purchaser.
However, this depends upon whether the purchaser possessed notice of the breach of trust.


Bona Fide Purchaser Rule
If the purchaser:
  • paid valuable consideration;
  • acted honestly;
  • and had no notice of the breach,
they become:
✅ a bona fide purchaser for value without notice.
In such circumstances:
❌ tracing against the purchaser fails.
The beneficiaries instead trace into the money received by the trustee.


Example
Suppose Emma purchases the painting honestly for:
£200,000,
without knowing it belonged to the trust.
Emma is protected in equity.
The beneficiaries therefore cannot recover the painting from Emma but may still trace into:
✅ the £200,000 received by Daniel.


Purchase of Substitute Assets
Equitable tracing also allows beneficiaries to trace trust money into assets purchased with it.


Example
Suppose Daniel improperly removes:
£500
from the trust and uses the money to buy jewellery.
The beneficiaries may trace their interest into:
✅ the jewellery.
The trust money is treated as having been substituted into the new asset.


Proprietary Remedies
In these circumstances the beneficiaries may choose between different proprietary remedies.


Taking the Asset Itself
The beneficiaries may elect to take:
✅ the jewellery itself.
This is particularly advantageous if the asset has increased in value.


Equitable Charge
Alternatively, the beneficiaries may obtain:
✅ an equitable charge
(or equitable lien)
over the jewellery securing repayment of:
£500.
This principle was recognised in Re Hallett’s Estate.


Example of Increased Value
Suppose the jewellery purchased for:
£500
later becomes worth:
£5,000.
The beneficiaries may prefer to claim:
✅ ownership of the jewellery itself,
rather than merely recovering the original £500.


Shortfall and Personal Remedies
Sometimes proprietary recovery may not fully compensate the beneficiaries.


Example
Suppose the jewellery purchased with:
£500
later falls in value and can only be sold for:
£300.


Result
The beneficiaries may still sue Daniel personally for:
✅ the £200 shortfall.


Equitable Compensation
This personal remedy is known as:
equitable compensation.
It aims to restore beneficiaries to the position they would have occupied had the breach not occurred.


Why Proprietary Remedies Matter
Proprietary remedies are often preferable because they:
  • attach directly to property;
  • survive insolvency;
  • provide priority over unsecured creditors;
  • and allow beneficiaries to benefit from increases in value.
This is why tracing is one of the most powerful remedies available in equity.


Relationship With Mixed Funds
Tracing involving unmixed property is comparatively straightforward because the trust property remains identifiable.
Once mixing occurs, tracing becomes significantly more complicated and additional rules apply, including:
  • Re Hallett;
  • Re Oatway;
  • Roscoe v Winder;
  • and Clayton’s Case.


Practical Importance
The rules governing unmixed funds remain highly important in cases involving:
  • breach of trust;
  • fiduciary fraud;
  • substitute property;
  • asset recovery;
  • and insolvency.
They provide beneficiaries with powerful mechanisms for preserving proprietary rights after misappropriation of trust property.


Key SQE Principles
Where trust property remains:
✅ identifiable and unmixed,
beneficiaries may trace into:
  • the original property;
  • substitute assets;
  • sale proceeds;
  • and gifts to innocent volunteers.
Beneficiaries may choose between:
  • recovery of the asset itself;
  • or an equitable charge securing repayment.
If proprietary recovery is insufficient, beneficiaries may also claim:
✅ equitable compensation.


Conclusion
The rules governing equitable tracing of unmixed funds provide beneficiaries with strong proprietary protection where trust property remains identifiable. Equity allows beneficiaries to follow the original property into substitute assets, sale proceeds, and even into the hands of innocent volunteers. Beneficiaries may recover the property itself, obtain an equitable charge over substitute assets, or pursue personal remedies where losses remain uncompensated. These principles form the foundation of equitable tracing and demonstrate equity’s commitment to protecting beneficial ownership rights after breaches of trust.
Sources of Reference
Re Hallett’s Estate (1880) 13 Ch D 696 (CA).
Foskett v McKeown [2001] 1 AC 102 (HL).
Pilcher v Rawlins (1872) LR 7 Ch App 259.
Alastair Hudson, Equity and Trusts (11th edn, Routledge 2022).
James Penner, The Law of Trusts (12th edn, OUP 2020).
Graham Virgo, The Principles of Equity and Trusts (5th edn, OUP 2024).
John McGhee (ed), Snell’s Equity (35th edn, Sweet & Maxwell 2024).

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