
Last verified: 20 January 2026 (England & Wales)
Most people sign a Will, file it away, and assume it will still do the right thing years later.
Then life changes. Relationships evolve. Children grow up. Assets and property ownership change. Tax rules move. Executors move away or become unwell. The Will still exists, but it is no longer clearly aligned to the life you live now.
A Will is only useful if it still fits your family, your assets, and your wishes, and can be used smoothly when it is needed.
Quick-read summary
Why a Will MOT matters
Your Will is the engine of your estate plan. It controls who inherits, who is in charge, and how your estate is handled after you die.
A Will can be legally valid and still be a poor fit for your life now. That is where problems start. Not always dramatic problems, but real ones: delays, avoidable arguments, tax inefficiency, gifts that no longer make sense, and outcomes that do not match what you would choose today.
A Will MOT gives you a clear answer, in writing, on whether your Will still works as intended.
Even a clear pass is valuable, because it evidences regular review and gives you confidence that you are not relying on an out-of-date document.
What a Will MOT checks
We review your Will for both legal validity and practical fit.
We cover:
Many “protective” outcomes depend on how the survivor’s life unfolds. Good drafting can offer some protection in the right scenarios, but it is never absolute.
We look for:
How the Will MOT works
If your Will is fit for purpose, you are done.
If it is not, the cleanest solution is usually a fresh Will that fits your life now and the foreseeable future.
In most cases, replacing a Will is clearer and safer than trying to patch an old document.
What the outcomes mean:
PASS
Your Will looks fit for purpose and workable. We confirm the review date and suggest a sensible next MOT interval.
ADVISORY
Your Will is broadly workable, but we flag improvements, risks, or review triggers to keep on your radar. This is often where a Will is technically fine, but could be sharper, clearer, or more resilient.
FAIL
Your Will is no longer fit for purpose for your needs now, or is likely to cause problems when used. We explain why, and what a replacement Will would need to achieve.
Practical checklist: is it time for a Will MOT?

Consider booking a Will MOT if any of the following are true:
What to consider before you update anything
A Will MOT is not about “more complex is better”. It is about fit.
It helps to be clear on:
If you have a Will and a Letter of Wishes, review them together. A good Will can be undermined by an outdated Letter of Wishes that quietly points in another direction.
How this links to your LPAs
Your Will only takes effect after death. LPAs are used while you are alive, if you lose mental capacity.
Life events that affect your Will often affect your LPAs too. If you have not reviewed both, you can end up with a plan that is partly modern and partly out of date.
See: LPA MOT: Lasting Power of Attorney Review
For pricing see: Will & LPA MOT (Services & Fees)
Cases
The “still married” Will after separation
A couple separated amicably and assumed they would “sort the paperwork later”. Years passed. One died unexpectedly and the old Will still left everything to the estranged spouse, with no clear plan for the children.
With a Will MOT, the risk was identified early and a clean replacement Will kept inheritance on track.
Without a Will MOT, the family faced a painful and avoidable outcome.
Executors who are no longer capable
A Will named an older relative as sole executor. Over time, health issues made it unrealistic. When the estate needed administering, everything slowed down and decisions became harder to coordinate.
With a Will MOT, the executor chain was modernised with practical replacements.
Without a Will MOT, delays and friction were almost guaranteed.
A Letter of Wishes that quietly contradicts the Will
A parent updated their Will, but forgot the older Letter of Wishes still referenced different intentions for personal items and how funds should be used for the children.
With a Will MOT, both documents were reviewed together and brought back into alignment.
Without a Will MOT, the executors would have been left trying to interpret conflicting signals at an emotionally charged time.
The home that is owned differently than the Will assumes
A Will tried to achieve a particular outcome for the family home, but the legal ownership arrangement meant the home would pass automatically in a way that bypassed the intended structure.
With a Will MOT, the ownership issue was spotted and the planning was reshaped to match reality.
Without a Will MOT, the Will could have delivered an outcome the client never intended.
Old gifts and percentages that no longer feel fair
A Will left a fixed gift to one child and the residue to the others. Years later, the family situation and asset values changed, and what felt “fair” then no longer felt fair now.
With a Will MOT, the plan was updated with a clearer, modern approach.
Without a Will MOT, resentment and disputes were more likely, even in a close family.

Does a Will MOT mean my Will is definitely “perfect”?
It gives you a structured, practical review against common risk areas and your current circumstances. It reduces the chances of unpleasant surprises and gives you a written record of where you stand.
If my Will is “valid”, why would it fail an MOT?
Because validity is not the same as fit. A Will can be legally valid but outdated, unclear, or likely to cause avoidable delay, cost, or conflict.
Do you update Wills or replace them?
In most cases we recommend a fresh Will rather than patching an old one, because it is clearer, safer, and easier to rely on. If a smaller change is genuinely appropriate, we will explain the options and risks.
Do I need to MOT my Letter of Wishes separately?
No. If you have a Letter of Wishes, we review it alongside the Will because they only work properly together.
How often should I MOT my Will?
Most clients review every three to five years, or after a major life event. If anything material has changed, it is worth checking sooner.
Next steps
This article is general information only, not individual advice.