Mental Capacity Act Northern Ireland: What Families Need to Know

Northern Ireland has two overlapping laws that govern what happens when a parent loses the ability to make decisions: the Mental Health (Northern Ireland) Order 1986 and the Mental Capacity Act (Northern Ireland) 2016. Understanding how they interact is essential if you are setting up an EPA, facing a Controllership application, or trying to influence your parent's medical care.

The Mental Health (Northern Ireland) Order 1986

This is the older law and it still governs the Controllership process. When a parent has lost mental capacity and no Enduring Power of Attorney is in place, the family applies to the High Court under the 1986 Order for a Controller to be appointed. The Office of Care and Protection — a division of the High Court — handles these applications.

The 1986 Order defines the court process, the supervision requirements, and the Controller's powers and restrictions. Despite being four decades old, it remains the active statute for all financial management orders where capacity has been lost without an EPA.

The Mental Capacity Act (Northern Ireland) 2016

This Act was meant to modernise everything. It received Royal Assent in 2016 and was designed to introduce:

• A unified definition of mental capacity (replacing the fragmented common law tests)
• Lasting Powers of Attorney covering both financial affairs and health and welfare decisions
• A statutory best interests framework for all decisions made on behalf of someone who lacks capacity

The problem: the LPA provisions have never been commenced. The Department of Health has not switched on the parts of the Act that would allow people to create Lasting Powers of Attorney for health and welfare matters. As a result, Northern Ireland remains the only jurisdiction in the UK and Ireland without an operational statutory framework for health and welfare attorneys.

What Is Actually in Force

Only Phase 1 of the 2016 Act is active, covering:

• The statutory definition of capacity: a person lacks capacity if they cannot understand relevant information, retain it, use or weigh it to make a decision, or communicate that decision
• Best interests decisions: when someone lacks capacity, any decision made on their behalf must be in their best interests, considering their past wishes, beliefs, and values
• Deprivation of Liberty safeguards: authorising restrictions on a person's freedom in hospitals and care homes

These provisions affect how doctors, social workers, and care homes make decisions about your parent. They do not give you — as a family member — any new legal powers.

How Capacity Is Assessed

Under the 2016 Act, capacity is decision-specific and time-specific. Your parent might lack capacity to manage complex investments but retain capacity to decide what they eat or where they want to live. The four-part test asks whether the person can:

1. Understand the information relevant to the decision
2. Retain that information long enough to make the decision
3. Use or weigh the information as part of the decision-making process
4. Communicate their decision (by any means)

A dementia diagnosis does not automatically mean capacity is lost. Many people in the early stages of dementia can still understand and execute an EPA — which is why acting early matters so much.

The Health and Welfare Gap

Because the 2016 Act's LPA provisions are not in force, there is no way to legally appoint someone to make healthcare decisions for your parent. This creates a gap that affects everyday situations:

• Medical treatment: doctors make decisions under the best interests framework, consulting the family but not requiring their consent
• Care home placement: HSC Trusts determine placement for funded residents; families influence but do not control the decision
• Advance Statements: the only tool available is a written advance statement (or living will) setting out the parent's wishes for future care. These are not legally binding in Northern Ireland but must be considered by clinical teams

For financial decisions, the EPA and Controllership systems fill the gap. For health and welfare, there is currently no equivalent — families operate through informal consultation and the best interests process.

What This Means for Your Family

If your parent still has capacity, create an EPA now to cover financial matters, and consider writing an Advance Statement to record their health and care preferences. The EPA route is governed by the 1987 Order, not the 2016 Act — but capacity assessments now use the 2016 Act's four-part test.

If your parent has already lost capacity, the 1986 Order's Controllership process is your only route for financial authority, and healthcare decisions will be made by clinical teams under the best interests framework.

Get Help Navigating Both Systems

The Northern Ireland Enduring Power of Attorney & Controllership Kit explains both the EPA and Controllership processes, includes an Advance Statement template for health preferences, and walks through the capacity assessment steps.

See more Northern Ireland guides →