When a child reaches 18, parental responsibility ends—even if they lack mental capacity or have significant disabilities. At that point, they are legally presumed to have capacity unless it is demonstrated otherwise.
If your young person has a severe learning disability or another condition that prevents them from making their own decisions, you can apply to the Court of Protection for a Deputyship Order. This allows you to make decisions on their behalf regarding their finances, property, or personal welfare.
When to Apply
If you think your young person lacks capacity, it is best to apply for a Deputyship Order 6–12 months before your child turns 18.
The Court of Protection process can take time, so applying early helps avoid any gaps in decision‑making.
Don't wait until there is an important decision to make.
What the Process Involves
You will need to:
- Complete several application forms
- Get a COP3 assessment from a professional (such as a GP or social worker) confirming that your child lacks capacity
This assessment explains why your child cannot make certain decisions for themselves.
Types of Deputyship
Property and Financial Affairs Deputy
This allows you to:
- Manage bank accounts and savings
- Deal with benefits
- Pay bills
- Manage property or tenancies
More information and how to apply
Personal Welfare Deputy
This is less common but may be given if there are disagreements about what is in the young person’s best interests.
It covers decisions about:
- Care and support
- Where they live
- Medical treatment
More information and how to apply
Your Responsibilities as a Deputy
If you become a deputy, you must:
- Always act in your child’s best interests
- Follow the rules of the Mental Capacity Act 2005
- Send a yearly report to the Office of the Public Guardian explaining how you managed your child’s money or welfare decisions
Becoming an appointee
If your child only receives benefits and has no savings or property, you might not need full deputyship.
Instead, you can apply to the Department for Work and Pensions (DWP) to become their appointee, which is much simpler.
More information and how to apply
If a young person lacks capacity a Lasting Power of Attorney (LPA) is not possible as for an LPA, the person must have the capacity to consent to their affairs being managed.