Make Summer the Season Your Planning Grows up
When a child turns 18, life starts to move quickly. School is ending, university places are confirmed, apprenticeships are offered and some young adults are heading off to work or travel. Among all that excitement, the law quietly treats them as fully grown. That shift matters for your family estate planning.
Once a child is 18, parents no longer have automatic rights to see medical notes, talk to banks or step in with formal decisions, even in an emergency. At the same time, your wills, trusts and guardianship plans may still see them as a minor. A calm summer review gives you space to tidy everything up before the next term, job or big move begins.
In this guide, we walk through how to use the summer holidays to review wills, update trusts, arrange Lasting Powers of Attorney and start open, age-appropriate conversations about future wishes as a family.
Why Turning 18 Changes Everything Legally
In the UK, 18 is the age of legal adulthood. From that birthday, a young person can usually:
- Make their own medical decisions if they have capacity
- Manage money and hold assets in their own name
- Decide who can see their personal information under data protection rules
- Enter contracts for things like rental agreements and mobile phones
This change can cause problems if nothing is set up. If your son or daughter is unconscious after an accident, or struggling with their mental health, doctors may not share full details with you without consent. Banks and universities may also refuse to talk to you if your child cannot speak for themselves at that moment.
There is also a knock-on effect for your existing planning. Wills that talk only about “minor children” or focus heavily on guardians may no longer match the reality that one child is an adult and siblings are younger. Trusts that release money at 18 may feel too early once you see the real person your child has become.
The quieter weeks of summer are a good time to:
- Check how each child is named in your will
- Review any existing trusts and age conditions
- Look at nominations on pensions and life cover
- Make sure your planning reflects your family as it is now
Summer Checklist for Updating Wills and Guardianship
First, look at who gets what. When a child becomes an adult, it is worth asking:
- Is each adult child now named individually, not just as “children”?
- Do the shares between older and younger children still feel fair?
- Would your 18-year-old be ready to receive a lump sum outright?
Some parents decide an 18-year-old is not quite ready for a large inheritance landing all at once. You might prefer a clause that holds funds in trust, giving access for education and living costs, then more control at a later age.
Next, refresh executors and guardians. Over time, people move, grow older or take on caring roles of their own. Use your summer review to check:
- Are your chosen executors still suitable and willing?
- Are they local enough to be practical, or does that matter?
- Do guardianship plans still make sense if one child is now 18 and others are not?
- Could an older sibling now play a helpful role alongside an adult guardian?
Then, make sure your will matches real life. Many families have had changes in recent years, such as:
- Buying or selling a property
- Building up more savings or investments
- Joining new workplace pension schemes
- Taking out or changing life insurance
- Building up digital assets like online accounts and photos
A short summer review can avoid confusion, family disagreements and outcomes you never intended. It also helps you see family estate planning as a regular habit, rather than a one-off task you ticked off years ago. Professional home visits can keep this process relaxed and easy, fitting around holidays and work.
Trusts for Young Adults Who Are Technically “Grown up”
Trusts can be very useful when children cross into adulthood on paper but still need support in practice. One key decision is when and how your 18-year-old should receive money.
Options to think about include:
- Keeping funds in trust, with staged access at, say, 21 or 25
- Releasing smaller amounts earlier for travel, studies or transport
- Holding property or investments in trust so they are not sold in a hurry
- Giving trustees flexibility to pause or vary payments if circumstances change
Trusts can also help protect young adults who are vulnerable or not yet confident with money. A discretionary or vulnerable person trust can:
- Support a child with additional needs or mental health challenges
- Protect funds from outside pressure or unwise relationships
- Allow help with rent, education and living costs without handing over full control
- Offer a safer structure if benefits or care funding are part of the picture
Trusteeship is an important part of this. Take time to review:
- Who you have named as trustees
- Whether they understand what is involved
- If they still feel like the right fit as your children grow up
- Whether you should add a different mix of family and trusted professionals
Careful advice can help you balance control, flexibility and tax points so your trusts work smoothly with the rest of your family estate planning.
Lasting Powers of Attorney for Newly Adult Children
Many parents are surprised that Lasting Powers of Attorney (LPAs) are sensible even for healthy 18-year-olds. Life happens quickly. An accident, a sudden illness or a serious mental health episode can leave a young adult unable to make decisions for a while.
Without LPAs, you may need to go through the Court of Protection to step in. That route can be slow and stressful at a time when everyone most needs calm support.
There are two main LPAs to consider for a young adult:
- Health and Welfare LPA gives a trusted adult legal power to access medical information and make care decisions if the young person cannot decide.
- Property and Financial Affairs LPA lets someone manage bank accounts, student rent, bills and benefits or bursaries when needed.
The way you talk about LPAs matters. Many families find it easier to frame them as a sensible safety net, a bit like travel insurance. You hope you never need it, but you feel better knowing it is there, especially when a young adult is moving away, travelling or starting a demanding job.
Keep the conversation open and respectful:
- Explain that the LPA belongs to them, not you
- Encourage them to choose people they trust, which may include you but does not have to
- Talk through what kinds of decisions might come up
- Reassure them that they stay in control whenever they are able to decide
A Family Estate Planning Action Plan for the School Holidays
To make all this feel manageable, it can help to break your summer review into simple steps across a few weeks.
A sample timetable might look like this:
- Weeks 1, 2: Gather existing wills, trust documents, pension details, insurance papers and any notes from past planning.
- Weeks 3, 4: Hold a family conversation about changes, including who might act as executors, guardians, trustees and attorneys, then speak with a specialist.
- Weeks 5, 6: Finalise and sign updated wills, trusts and LPAs before term or new jobs begin.
From there, turn your summer checklist into a short, clear list:
- Review and refresh wills
- Review or set up trusts for young adults
- Put LPAs in place for each child who is 18 or older
- Update key contacts and keep records in one safe but accessible place
Family estate planning works best as an ongoing habit. Turning 18 is one milestone, but other good times to review include starting a first job, buying a home, forming a long-term partnership or welcoming grandchildren.
At Sovereign Planning, we provide professional, home-visit will writing, trust planning and lasting powers of attorney services across the UK. Summer can be a gentle moment to sit around the table, talk things through and make sure your young adults step into their new stage of life with protection, clarity and confidence.
Secure Your Family’s Future With Thoughtful Planning
If you are ready to put firm legal protections in place for those you care about, our family estate planning services can help you take the next step with confidence. At Sovereign Planning, we work closely with you to understand your wishes and translate them into clear, practical arrangements. To discuss your situation and explore your options, simply contact us and we will guide you through the process.
