ADHD and Money: Understanding Impulse Spending and Financial Decisions

Missing a bill payment, shopping without a plan or putting off financial decisions are all situations that can arise in everyday life. However, when these behaviours become recurrent and begin to cause debt, conflict or distress, it is worth considering whether factors beyond poor financial organisation may be involved.

For people with Attention Deficit Hyperactivity Disorder (ADHD), challenges involving attention, working memory, impulse control, planning and emotional regulation can affect how they manage money. This does not mean that every impulse purchase results from the disorder, or that financial difficulties alone indicate ADHD.

Research involving adults, including “Financial decision-making in a community sample of adults with and without current symptoms of ADHD”, published by the National Library of Medicine, and “Impulsive Buying and Deferment of Gratification Among Adults With ADHD”, published in Clinical Psychology in Europe, found that participants with ADHD symptoms reported more impulse buying and a greater tendency to defer financial decisions or make them spontaneously than people without symptoms.

The relationship is also shaped by factors such as personality, depressive symptoms, age, income and life circumstances. According to psychologist and neuropsychologist Luanda Rosa, the key issue is establishing what drives the behaviour before selecting a strategy to change it.

“Someone may spend without thinking because they struggle to stop an action and consider its consequences. In another case, buying may work as an attempt to ease anxiety, sadness, frustration or stress. Similar behaviours can have different causes and therefore do not necessarily respond to the same solution,” she says.

When a spreadsheet is not enough

Budgeting apps, spreadsheets and lower card limits may help to restrict spending, but they do not automatically address the source of the issue. These tools display amounts and due dates, yet they require a person to be able to start tasks, sustain a monitoring routine and turn intention into action.

Someone may know they need to save money but still forget to make the transfer. They may see a bill and delay paying it until the deadline becomes urgent. They might also open a shopping app while stressed and complete a purchase without considering its effect on that month’s outgoings.

“Managing the card limit can reduce an immediate risk, but it may not be enough if buying is serving as a response to a difficult emotion. In these cases, it is necessary to understand the recurring pattern,” says Luanda Rosa.

The role of emotions in spending

Two people may say that they “cannot control their money” while facing entirely different circumstances. One may forget bills and commitments; another may avoid decisions until they become urgent. Others may buy on impulse, struggle to calculate the consequences or seek an immediate reward when faced with stress and frustration. This distinction matters because a measure that helps in one case may not work in another.

Mobile reminders, a due-date calendar and automatic payments can support people who frequently miss deadlines. For impulse purchases, steps such as removing saved cards from apps, switching off promotional notifications and setting a waiting period before completing a purchase can provide room for reflection.

Where emotion plays a significant part in spending, however, financial barriers alone may have limited effect. In these situations, identifying emotional triggers and seeking psychological support may form part of the care needed.

Why an individual ADHD assessment matters

Luanda Rosa says that persistent difficulties with organisation, forgetfulness, impulsivity and decision-making deserve attention when they affect daily routines, income, relationships or emotional health. A neuropsychological assessment can examine attention, working memory, planning, executive functions, decision-making and behavioural control, while taking each person’s history and circumstances into account.

“The aim is not simply to answer whether someone has ADHD or not. It is also to understand how cognitive and emotional functioning contributes to the reported difficulties and which strategies may be workable in that person’s reality,” the specialist says.

The psychologist and neuropsychologist emphasises that understanding the issue may help replace guilt with more useful questions: was it forgetfulness? A lack of planning? An impulsive decision? An intense emotion?

The answer can point towards different approaches. For some people, a simpler routine involving alerts and automatic payments may be enough. For others, organisational strategies may need to be combined with care for anxiety, stress, spending behaviour and mental health.

By Paulo Novais