How to Beat the ADHD Tax and Stop Impulsive Spending Deficits

There is one thing nobody tells you about ADHD: it's expensive. Not just the therapy or the medication, but the way our brains quietly drain bank accounts without us even noticing. One impulsive click here, one forgotten bill there, one "I deserve this" purchase after a hard day. And at the end of each month staring at your bank balance which simply doesn't add up. 

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Money and ADHD have a complicated relationship, although it was an ignored topic recently scientists have started to study it. 

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What does ADHD financial struggle look like?

When people with ADHD describe money problems, it's not just bad decisions. It's a specific pattern they find difficult to overcome: 

• The hyperfocus hobby haul: You suddenly need leatherworking supplies. All of them. Even if you haven't started learning yet. Or want to collect all the colours of a labubu doll. 

• The dopamine buy: You're exhausted, you're scrolling, and that thing promises to fix everything. One click. Done.

• The bill that existed but didn't exist: You saw the email. You meant to pay it. But time disappeared and now there's a late fee.

• The shame spiral: After overspending, you avoid looking at your bank account entirely. Which means you lose track completely. The guilt that clutches you every time you swipe the card. 

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While some of you may experience all of the above, others might experience just a few. There isn't a fixed pattern, all of us have unique financial styles (and struggles), and your ADHD might show up differently than someone else's.

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Hidden Cost of ADHD 

Let's clear one thing up first: struggling with money when you have ADHD isn't about being "bad at math" or "irresponsible." A recent study from the University of Cambridge, done with the bank Monzo, found that ADHD can cost adults about £1,600 a year [1]. This money often disappears through impulsive buys, forgotten bills, and trouble sticking to a budget. 

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What Does Science Say?

An interesting study conducted in Sweden looked at the entire population to understand how ADHD affects money over a lifetime [2]. Researchers found that adults with ADHD start their financial lives normally, but by middle age, their loan default rates grow exponentially, climbing from near-zero in their early 20s to around 0.12 by age 50. This leads to poor credit scores and less access to loans even when they need them most. The study, which also analyzed credit data from a random sample of 189,267 adults, discovered that financial distress is linked to a fourfold higher risk of suicide among those with ADHD. The point of sharing this is not to scare you but to show you that these struggles are real, have been measured in huge studies, and need to be managed early on. 

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The same research also noted that for men with ADHD who died by suicide, their outstanding debt increased significantly in the three years prior, a pattern not seen in others. It also found that taking medication was not connected to improved financial behaviors, suggesting that managing money with this condition needs more than just medical treatment (perhaps cognitive training can help). 

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In another study comparing 45 adults with ADHD to 47 without found that those with ADHD scored significantly lower on nearly every aspect of financial capability, from knowing when bills arrive and understanding their own income to planning long-term goals and comparing insurance plans [3]. Interestingly, these difficulties had nothing to do with how much money they earned, even higher-income participants struggled just as much. The researchers stress that professionals supporting adults with ADHD must proactively ask about money management so people can get the right coaching and support before legal or personal problems pile up.

And let's be honest, most of us are aware of  that overwhelming urge to buy something completely useless like a sausage making kit or falling for those temu deals (who isn't a victim of that these days). That's the ADHD in action as research has found a link between impulsive buying and ADHD [4]. 

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The Root Cause of Poor Financial Decision-making 

Dr Barbara Sahakian, an ADHD specialist at the University of Cambridge suggests that these financial challenges of ADHDers are linked to executive dysfunction [1]. Moreover, research shows that adults with ADHD have poor financial judgement and reasoning, and often end up ignoring important relevant financial information [5]. Therefore, being mindful of your financial decisions and strengthening executive functions can help you overcome your financial challenges. 

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Key Takeaway 

You've just learned something important today, why you spend money the way you do. That awareness alone is the first step towards building building money systems and financial habits that actually work with your ADHD brain.