TrustsWillsTrust for an Animal in a Will: A Practical Guide

13 February 2026by Chris Rattigan-Smith

For many people, pets are family. A common concern when making a will is how to ensure a much‑loved animal, particularly one that is long‑lived or high‑maintenance, is properly cared for after death. A Trust for an Animal can be an effective way to ring‑fence funds for that care. This guide explains the options, the legal principles, and the practical considerations involved.

Core legal point: animals cannot inherit

Only legal persons (individuals or legal entities such as companies or charities) can be beneficiaries. An animal is neither. If a will says “I leave £20,000 to my dog, Max”, the gift fails because there is no valid beneficiary. The solution is to leave money to a person or to trustees, with instructions that it be applied for the animal’s maintenance.

Two main routes

Gift to a caregiver (with wishes)

The simplest route is to leave the pet to a trusted person together with a sum of money, and to set out non‑binding preferences for care (diet, vet, insurance, routines) either in the will or in a separate letter of wishes. This is easy to administer, but it relies entirely on goodwill: the recipient owns the money outright and is not legally bound to spend it on the animal.

Example:

A testator leaves their cat to their niece together with £5,000 and expresses a wish that the sum be used for the cat’s care. The niece owns the money outright; the request is not binding.

Trust for an Animal

A Trust for an Animal is created on death. Trustees hold funds and apply them for the animal’s maintenance (e.g. food, insurance, grooming, medication, boarding, and veterinary treatment). This creates control and accountability because the money must be used for that purpose.

Legal principles behind a Trust for an Animal

Beneficiary principle

Private trusts generally need identifiable beneficiaries who can enforce them. Non‑charitable “purpose trusts” are usually problematic because they lack beneficiaries. The law recognises certain purpose trusts when carefully drafted, including trusts for the maintenance of specific animals.

Perpetuity

A Trust for an Animal cannot last indefinitely. It must be limited to 21 years and will usually end earlier on the animal’s death. This timeframe is suitable for most household pets but can be restrictive for long‑lived species such as parrots or tortoises.

Enforcement

As the animal cannot enforce the trust, the people who take when the trust ends (often the residuary beneficiaries) may challenge misuse and hold trustees to account.

Example structure

Rufus is a 10‑year‑old Labrador on lifelong medication. The will might:

  • leave Rufus to a trusted friend to care for;
  • direct £30,000 to trustees to hold as a Trust for an Animal;
  • authorise trustees to pay for medication, insurance and veterinary expenses (and other reasonable maintenance costs);
  • limit the trust to Rufus’s lifetime and no longer than 21 years; and
  • provide that any surplus passes to the residuary estate.

When is a simple gift better?

A straightforward gift with a letter of wishes may be suitable where the pet’s needs are modest, the caregiver is entirely trusted, and the sum involved is small. Where control in needed or larger funds are involved, a Trust for an Animal may be the safer option.

Conclusion

A well‑structured Trust for an Animal allows owners to ensure their pets are properly cared for after death. By choosing an appropriate structure and setting out clear instructions, clients can create a practical and reassuring plan that protects their animals’ welfare.

 

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Chris Rattigan-Smith

Chris joined WillPack in 2015, beginning a career in will writing straight after graduating from university. In 2022, Chris was appointed Director of WillPack. Holding a 2:1 Law degree from the University of Lincoln, Chris is an Associate Member of both the Society of Will Writers and the Society of Trust and Estate Practitioners (STEP).