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Letter of Wishes UK — What Is It and Do You Need One?

Last updated: March 2026 · 5 min read

A letter of wishes is a personal document that accompanies your Will. It is not legally binding but provides guidance to your executors and trustees on matters your Will cannot cover in detail — from funeral preferences to how you would like a trust to be administered.

What a Letter of Wishes Can Cover

💡 Essential if you have a discretionary trust. Trustees need guidance on how to exercise their discretion — who to benefit, in what proportions, and in what circumstances. Without a letter of wishes, trustees must make decisions blindly.

Letter of Wishes vs Will — Key Differences

WillLetter of Wishes
Legally binding?YesNo
Public on death?Yes — probate is publicNo — remains private
Witnessed required?Yes — formal requirementsNo
Can be updated?Yes — new Will or codicilYes — simply rewrite it
CoversLegal distribution of estatePersonal preferences and guidance

How to Write One

There are no formal requirements. Write it clearly, date it, sign it, and store it with your Will. Tell your executors it exists and where to find it. Review and update it whenever your circumstances or wishes change.

Unlike a Will, a letter of wishes is a private document — it does not become public record through probate. This makes it suitable for sensitive personal messages or explanations you would not want published.

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