What is a Letter of Wishes?
A Letter of Wishes — also called an Expression of Wishes — is a private document that sits alongside your trust or Will and gives guidance to your trustees. It is:
- Not legally binding on the trustees
- Completely confidential (unlike a Will, which becomes public after probate)
- Easy to update at any time, at no legal cost
- A clear record of your intentions and priorities
In practice, trustees will normally follow your wishes unless circumstances make it inappropriate to do so.
Why it matters
- Guides trustees when they exercise discretion
- Reduces delays and confusion at claim stage
- Helps avoid family disputes by explaining the "why" behind your choices
- Keeps your wishes private
- Allows flexibility as your family circumstances change
Why it must stay non-binding
For a discretionary trust to work properly — and to keep its inheritance tax benefits — the trustees must retain full discretion over how the trust fund is used. A Letter of Wishes supports that discretion; it doesn't override it.
✅ Your Letter of Wishes = guidance.
❌ It must not become instructions or orders.
How to write it properly
Use flexible language
- "I would like…"
- "It is my wish…"
- "I would ask the trustees to consider…"
Avoid
- "You must…"
- "I instruct…"
- Anything that removes trustee discretion
When should you update it?
Review your Letter of Wishes whenever life changes, for example:
- New children or other family changes
- A change in your income or wider financial position
- Marriage, civil partnership or separation
- Shifts in your estate planning priorities
You can update it at any time without legal cost — just replace the previous version and let your trustees know where the current one is kept.
See a draft you can adapt
We've prepared an example draft Letter of Wishes you can use as a starting point.
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