Mental Capacity, Money and Misconceptions
When financial advice and mental capacity assessments intersect, misconceptions can create confusion, delay decisions, and sometimes even harm outcomes for clients and their families.
As professionals working closely with individuals during important life decisions, it’s crucial that both financial advisers and mental capacity assessors help challenge these myths.
Here are some of the most common misunderstandings—and the reality behind them.
Myth 1: “A lack of capacity is permanent.”
Reality: Mental capacity is both decision-specific and time-specific.
A person may lack capacity to make a complex financial decision today but be perfectly capable of making simpler decisions—or even the same decision at another time.
Capacity can fluctuate due to conditions such as dementia, mental health issues, medication, or temporary illness. This is why assessments must always be tailored to the specific decision at the specific time.
Myth 2: “Having a diagnosis means someone lacks capacity.”
Reality: A diagnosis alone does not determine capacity.
Someone living with dementia, a learning disability, or a mental health condition may still have full capacity to make many decisions.
The key question is not what condition someone has, but whether they can:
Understand the information relevant to the decision
Retain that information
Weigh it up
Communicate their choice
Myth 3: “Financial advisers can’t proceed if there are any concerns about capacity.”
Reality: Advisers can and should take proportionate steps.
Concerns about capacity don’t automatically mean stopping all progress. Instead, they should prompt:
Adjustments to communication
Slower pacing of discussions
Involvement of trusted individuals (with consent)
Referral for a formal capacity assessment when needed
Good practice is about supporting decision-making—not removing it.
Myth 4: “Mental capacity assessments are only needed in extreme cases.”
Reality: Early input can prevent bigger problems later. Assessments aren’t just for disputes or crises. They can be invaluable when:
Large financial decisions are being made
There are early signs of cognitive decline
Family dynamics are complex
There’s a need to evidence decision-making
Proactive assessments can protect clients, advisers, and families alike.
Myth 5: “If someone makes an unwise decision, they must lack capacity.”
Reality: People have the right to make decisions others disagree with.
Making a decision that seems risky or unusual does not mean a person lacks capacity.
Capacity is about the process of decision-making, not the outcome.
Myth 6: “Once someone lacks capacity, others can simply take over.”
Reality: There are legal frameworks that must be followed.
If a person lacks capacity, decisions must be made in their best interests and in line with legal structures such as:
Lasting Powers of Attorney (LPA)
Deputyship arrangements
Professionals must ensure decisions are properly authorised and documented.
Myth 7: “Once someone loses capacity, their finances will just be ‘taken care of’.”
Reality: Financial management doesn’t automatically become structured or sustainable.
When someone loses capacity, responsibility often shifts to attorneys or deputies—but this does not guarantee that finances will be managed strategically or with long-term sustainability in mind.
Without proper planning:
Money can be spent too quickly
Investments may be left unmanaged or unsuitable
Tax opportunities may be missed
Care costs may not be properly forecasted
This is where financial advisers play a crucial role—helping ensure that funds are managed in a way that supports the individual’s needs over time, not just in the short term.
Myth 8: “Family members or attorneys don’t need financial advice.”
Reality: Managing someone else’s finances is complex and carries responsibility.
Attorneys and deputies are often navigating:
Budgeting for potentially long-term care
Balancing income, savings, and investments
Making decisions that align with “best interests” requirements
Keeping appropriate records
Financial advisers can support them by:
Creating sustainable withdrawal strategies
Advising on investment suitability
Planning for care funding
Helping ensure money lasts for as long as it’s needed
This support can reduce stress for families and provide reassurance that decisions are well-informed and defensible.
Myth 9: “Planning can wait until capacity is lost.”
Reality: Early financial planning is essential. The best outcomes often come from planning before capacity becomes an issue.
By working with a financial adviser early, individuals can:
Put LPAs in place
Structure their finances efficiently
Consider future care costs
Ensure their wishes are clearly documented
This forward planning makes things significantly easier if capacity is later lost—and helps protect both the individual and those supporting them.
At the heart of this topic is a simple principle: every individual should be supported to make their own decisions wherever possible—while also ensuring that, if they cannot, their finances are managed with care, structure, and foresight.
By challenging myths and promoting informed, ethical practice, we can ensure that clients receive both the financial guidance and the protections they deserve.
Find out more about Mental Capacity Assessments through Nellie Supports, England and Wales’ Largest Specialist Private Social Work and Mental Capacity Assessment Practice.
