What is a Guardian?
A guardian is the person you appoint in your will to take on parental responsibility for your child or children if you die and no other person with parental responsibility survives you. If your appointment becomes effective, your chosen guardian will be responsible for where your child lives, how they are educated, and how their day-to-day needs are met.
In England and Wales, guardianship under a will lasts until the child turns 18.
When Does Your Guardianship Appointment Take Effect?
A guardianship clause in your will only becomes effective if, at the time of your death, your child is under 18 and there is nobody else with parental responsibility surviving you.
If your child's other parent is still alive and has parental responsibility, they continue to care for the child. Your appointed guardian does not automatically take over just because you have died. This is true whether you were married to the other parent or not.
If both parents die at the same time or close together, and your child is under 18, your appointed guardian steps in. This is the scenario that most parents are protecting against.
Even if your appointment does not take effect immediately, having it in your will is a clear expression of your wishes that can guide any future decisions about your children's care.
Who Can You Appoint as Guardian?
You can appoint almost anyone as guardian provided they are 18 or over, willing to take on the role, and capable of caring for your child. You can appoint:
- A single individual
- A couple — for example, a sibling and their spouse — who would act together
- A substitute guardian in case your first choice is unable to act
The most important qualities are that your child knows and trusts the person, that they share your values about upbringing and education, that they have the practical ability to care for a child, and that they genuinely want to take on this responsibility.
Important Practical Considerations
Appointing two guardians who live in separate households can create practical difficulties about where a child lives. Where possible, appointing people who live together or very nearby tends to work more smoothly.
Consider whether your chosen guardian is physically and financially capable of caring for your child — particularly if your children are young and the guardian is older. This is not about excluding older relatives, but about thinking practically about who can provide long-term stability.
The guardian will not automatically be entitled to manage any money left to your child. Your executor and trustee handle the financial side. The guardian handles the child's day-to-day care and upbringing. These roles are separate, though you can appoint the same person to both if you choose.
Always Talk to Your Chosen Guardian
Never appoint a guardian without having that conversation with them first. Being named as a guardian in someone's will without prior discussion can be overwhelming and unfair. The person you choose needs to know what you are asking of them, to consent to the role, and to understand where your will is kept.
It is also worth considering what would happen to your children in the immediate short term if both parents died unexpectedly — before probate is granted and before the guardian formally takes on their role. Naming an interim carer in a letter of wishes alongside your will can provide useful practical guidance.
Appointing a Substitute Guardian
Just as you should appoint a substitute executor, appointing a substitute guardian is good practice. If your first choice is unable or unwilling to act, your substitute steps in. Without a substitute, there is no clear instruction for who should care for your children if your first choice is unavailable.
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