The hidden cost of neurodiversity: How missed payments can add up to thousands each year

We’ve all forgotten to pay a bill at some point. Life gets busy, emails pile up, and deadlines slip. But for some people, especially those who are neurodivergent, it’s not always limited to a one-off mistake.

In fact, nearly half (49%) of those who have ADHD have reported missing bill payments, compared to just 18% of the general population.

Those with this condition can also experience:

• Impulse purchases that blow the budget
• Constantly having to replace lost items such as keys
• Last-minute bookings
• Late fees from forgotten payments

This means that missed payments, late fees, and last-minute scrambles can happen more often, quietly stacking up over time. Those repeated costs are sometimes referred to as the “neurodiversity tax.”

This tax refers to the unexpected, recurring expenses caused by neurodiversity. These are not literal taxes, but the financial consequences of forgetfulness, inattention, and impulsivity – all things that those who are neurodiverse can be more likely to suffer from.

To put real figures behind the experience, UK Debt Expert analysed a range of household costs such as council tax, utilities, parking fines and overdrafts plus late fees across the UK to reveal how much money a neurodiverse person could be losing on average.

The results show that what may feel like small slip-ups can translate into thousands of pounds in extra costs each year.

The true cost of neurodiversity

Aberdeen has been revealed to be the most expensive for those who are neurodiverse, reaching over £3,500 a year, with costs a lot higher than in other cities.

Council tax is the biggest driver. In Scotland, missing two council tax instalments can trigger a demand for the full annual balance. In Aberdeen, that could mean being asked to pay £3,213 in one go if three regular direct debits are missed – an overwhelming sum for many households.

In cities with higher council tax rates, the financial penalty of a missed deadline is magnified significantly.

Similarly, parking fines can escalate quickly, particularly for people with ADHD. The data suggests that even when fines are paid within the 14-day discount window, individuals could still spend an average of up to £105 a year, with around one in seven expected to receive at least one fine annually.

For someone managing ADHD-related challenges like time blindness, distraction, or difficulty tracking deadlines, those “small” penalties can become a recurring and frustrating expense that quietly adds to the overall ADHD tax.

Sunderland comes in slightly lower at £2,073, however, it still represents more than £2,000 a year in additional financial strain linked to missed payments, overdraft charges, and fines. For many households, that’s the equivalent of several months of household bills.

Bournemouth’s total sits lower, at £1,725.61, but the pattern is similar. Even in cities where the overall figure is smaller, the data shows how quickly recurring penalties can build into a meaningful and ongoing financial burden.

Neurodiversity doesn’t directly cause financial irresponsibility, but can create financial friction. Executive function challenges can make it harder to prioritise paperwork, remember payment dates, or respond quickly to reminder letters. When systems rely heavily on rigid deadlines and automated penalties, those small delays can snowball into high costs.

Over time, these repeated costs can affect credit scores, savings potential, and long-term financial resilience. Money that could have gone towards savings, debt repayment, or everyday essentials instead disappears into fees and fines. 

Lifetime neurodiversity tax

The data was further analysed to show the potential financial impact of being neurodivergent over the average lifetime expectancy.

From the age of 18 to late into your 60s and early 70s, the average resident in Aberdeen could spend over £200,000 due to the neurodiversity tax.

Even in cities where the annual burden appears lower, the long-term impact remains substantial. In Bournemouth, the projected lifetime cost exceeds £103,000, while in places like Reading, Northampton and Bradford it still approaches £88,000.

Across every location analysed, the consequences of recurring penalties, fees and missed payments add up to tens, and in some cases hundreds of thousands of pounds over a working lifetime.

Personal finance expert Maxine McCreadie commented on the research:

“The ‘neurodiversity tax’ isn’t about irresponsibility, it’s about how everyday systems are structured. When bills rely on strict deadlines, automatic penalties and complex administration, even small executive function challenges can lead to disproportionate financial consequences. Over time, those repeated fees can quietly chip away at savings, stability and confidence.

“The positive side is that practical steps, like automation, reminders and simplified systems, can slowly reduce the impact. For anyone feeling overwhelmed or stuck in a cycle of fees and overdraft charges, speaking to a qualified financial adviser can provide tailored guidance and a clear plan forward. Getting the right support can make a meaningful difference to long-term financial wellbeing.”

Managing finances for the average person can be challenging, but when managing neurodiversity, this can be doubled. Putting steps in place to minimise the risk of spending more is essential.

1. Automate the essentials

Where possible, set up direct debits for fixed bills like council tax, rent, utilities and broadband. Automation reduces reliance on memory and helps avoid late fees. If monthly payments feel risky, consider setting reminders a few days before they leave your account so there are no surprises.

2. Create ‘double reminders’

Time blindness is real. Instead of one reminder, set two. Once a week, before a bill is due, and another 24 hours before. Digital calendars, banking apps and smart assistants can all help create external prompts that reduce last-minute scrambles.

3. Create a simple bill system

Complicated spreadsheets often don’t last. A visible, low-effort system like a notes app list titled “Bills This Month” can make admin feel less overwhelming and easier to revisit.

4. Build a buffer pot

Even a modest cushion of £100–£300 can prevent overdraft charges if a payment catches you off guard. The goal isn’t a huge emergency fund overnight, just enough to stop one slip from triggering a chain reaction of fees.

5. Always ask for flexibility

Many councils, banks and utility providers offer payment plans, alternative due dates, or support services. If you’re struggling, contacting them early can prevent escalation. Some organisations are increasingly recognising neurodiversity and may offer more flexible arrangements if asked.

Dr Sheena Kumar, a chartered counselling psychologist, commented on the deeper impact this could have. She said:

“Missing payments can lead to anxiety, stress or overwhelm and someone may then avoid tasks that make them feel like this, creating bigger problems. If people become trapped in a cycle of debt, this can lead to depression, shame, self-critism and guilt.

“The reason is not about traits but about the wiring of an ADHD brain, which can make executive functioning tasks harder to plan, organise and execute – especially if they are mundane tasks such as paying bills.

“Financial systems are often full of forms and dependent on multiple passwords and steps. Neurodivergent people already experience cognitive overload, so the way the system is set up can be a barrier and disadvantage people whose brains work differently.”

Methodology

UK Debt Expert looked at four factors across the most populated UK cities:

• Council tax
• The average cost of utility bills
• Parking fines
• Overdrafts

We found the average cost of late fees, how many times on average a person misses these payments and how many times the payment is taken each year. We applied the recorded average of three missed payments per year among neurodiverse individuals to model and estimate the anticipated annual cost.

From this, we projected both annual and lifetime costs (ages 18–60) to estimate the cumulative financial impact over time.