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Turning 18 with SEND: What Happens to Your Child's Support

6 min read Last reviewed 6 May 2026
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You’ve spent years learning the system. You know the EHCP process, the school meetings, the annual reviews. And now your child is approaching 18, and the rules are about to change.

The transition to adult services is one of the hardest things SEND families face. Some support continues. Some disappears. And some is replaced by a completely different legal framework that nobody explains to you in advance.

Here’s what actually happens, and what you can do now to prepare.

The EHCP continues

The most important thing to know: your child’s EHCP does not end at 18. Under the Children and Families Act 2014, an EHCP can remain in place until the young person turns 25, as long as they remain in education or training.

This includes sixth form, college, university, apprenticeships, and supported internships. The LA must maintain the EHCP and ensure the provision in it is delivered.

Your child’s EHCP can continue for as long as the young person is in education or training, up to age 25, under the Children and Families Act 2014.

The LA can only cease the EHCP if:

  • The young person no longer needs the special educational provision in it
  • The young person is no longer in education or training and doesn’t want to return
  • The young person has achieved the outcomes in the plan

If the LA tries to end the EHCP and you disagree, you can appeal to the SEND Tribunal.

Social care changes completely

This is the cliff edge. At 18, your child stops being a “child in need” under the Children Act 1989 and becomes an adult under the Care Act 2014.

The Care Act has different eligibility criteria. Support that was available under children’s social care may not automatically continue under adult social care. The assessment is different. The thresholds are different. The people making the decisions are different.

Before
After
Legal framework
Children Act 1989
Care Act 2014
Assessment
Children in need assessment
Adult needs assessment
Who decides
Children’s services
Adult social care
Parent role
Full parental responsibility
Changes (see mental capacity)
Short breaks
Specific duty to provide
No equivalent duty

These changes don’t happen overnight, but they do happen automatically at the point your child turns 18.

Warning

The transition from children’s to adult services must be planned well in advance. If the LA hasn’t started this conversation by Year 9, raise it yourself. Waiting until your child is 17 is too late.

Preparing for Adulthood starts at Year 9

The SEND Code of Practice is clear: planning for the transition to adulthood should begin from Year 9 (age 13-14). This is called Preparing for Adulthood (PfA), and it should be a focus of every annual review from Year 9 onwards.

The four Preparing for Adulthood outcomes are:

  • Employment - what your young person wants to do, supported internships, work experience
  • Independent living - where they’ll live, what support they’ll need at home
  • Community participation - friendships, social activities, being part of their community
  • Health - managing health needs, transitions between children’s and adult health services

These aren’t optional discussion points. The Code of Practice expects annual reviews to address them explicitly from Year 9 onwards.

The transition assessment

The Care Act requires the LA to carry out a transition assessment before your child turns 18 if it appears they’re likely to have care and support needs as an adult. There’s no fixed age for this, but it must happen before their 18th birthday.

Year 9 annual review
Preparing for Adulthood planning should begin. The EHCP should start reflecting post-18 goals.
Age 13-14
Transition assessment requested
Ask adult social care for a transition assessment. The LA must carry one out if your child is likely to have needs as an adult.
Age 16-17
Adult needs assessment
A full assessment under the Care Act. Determines what support the LA will provide after 18.
Before 18th birthday
Support plan agreed
Adult social care creates a support plan based on the assessment. Should be in place by the time your child turns 18.
Before 18th birthday
Turning 18
Adult social care takes over. Children’s services step back. The EHCP continues if the young person is in education.
Age 18

This timeline shows why starting this planning at Year 9 makes a real difference.

Tip

Don’t wait for the LA to offer a transition assessment. Write to adult social care and request one. The earlier you start this process, the less likely there’ll be a gap in support.

Mental capacity at 18

This is the part that catches many parents off guard. At 18, your child becomes a legal adult. You no longer have automatic parental responsibility.

Under the Mental Capacity Act 2005, every adult is assumed to have capacity to make their own decisions unless it’s established otherwise. This means your young person will be asked to consent to their own care, sign their own forms, and make their own choices.

If your young person lacks the capacity to make specific decisions, you may need to:

  • Apply for a Lasting Power of Attorney (LPA) while they still have capacity to grant one
  • Apply to the Court of Protection for a deputyship order if they lack capacity
  • Be appointed as a personal welfare deputy for health and care decisions
18 years old
At 18, parental responsibility ends automatically. If your child can’t make certain decisions independently, you need legal authority to continue making them. Start this process early.

This is why planning for mental capacity needs to happen well before your child’s 18th birthday.

Important

The Mental Capacity Act applies decision by decision. Your young person might have capacity to decide what to eat but not to manage finances. Capacity is assessed for each specific decision, not as a blanket judgement.

What you can do now

Whether your child is 13 or 17, there are practical steps you can take:

  1. Raise Preparing for Adulthood at the next annual review. If it’s not already being discussed, ask the school to include PfA outcomes in the EHCP.

  2. Request a transition assessment from adult social care. Don’t wait to be offered one. Write to the LA and ask for it.

  3. Explore supported living options early. If your young person may need supported accommodation, waiting lists can be years long. Research what’s available in your area now.

  4. Consider mental capacity. If your young person is unlikely to manage certain decisions at 18, start the LPA or deputyship process well before their birthday.

  5. Connect with adult services. Meet the adult social care team before the handover happens. Understanding who’ll be responsible helps avoid gaps.

Getting help

Preparing for Adulthood has detailed resources on what good transition planning looks like, including guides for families.

IPSEA advises on EHCP rights beyond 18, including when the LA can and can’t cease the plan.

Your local Special Educational Needs and Disabilities Information, Advice and Support Service (SENDIASS) can support you through annual reviews focused on transition and help you navigate adult social care.

How our free tool can help

The AI assistant at SEND Parents Help covers the transition to adult services in detail. You can ask about EHCP continuation, Care Act assessments, mental capacity, and what to do if the LA tries to end support at 18.

Start early, push hard

The transition to adult services doesn’t have to be a cliff edge. But it takes planning, and it takes you pushing the LA to start that planning years before your child turns 18.

Don’t assume it will happen automatically. In most areas, it won’t. The families who get the best outcomes are the ones who start asking questions at Year 9 and don’t stop until everything is in place.

Sources and further reading

Legislation and official guidance