Complexity Is a Feature — Just Not One That Works For You
Discover why complexity in software, systems and business isn't a bug but a deliberate feature—one designed to benefit everyone except you.
Complexity Is a Feature — Just Not One That Works For You
Financial products aren't confusing by accident. Someone, somewhere, spent months making sure of it.
If you've ever stared at a mortgage document and wondered whether "APRC" is a Star Wars droid, congratulations — you've met the finance industry's favourite weapon. Complexity isn't a bug that customer service is quietly working on. It's the whole business model. And once you see it, you can't unsee it.
Let's talk about why nothing in finance is ever just simple, who benefits from that, and how to stop paying the "I didn't read the small print" tax.
The Confusion Premium Is Real (And You're Paying It)
There's a well-documented phenomenon economists politely call the "confusion premium." Everyone else calls it "why is my energy bill £47 more than my neighbour's for the exact same flat?"
When products are complex, comparison becomes hard. When comparison is hard, competition weakens. When competition weakens, providers charge more. It's a beautiful little machine, and you are the fuel.
Take mortgages. There are fixed rates, tracker rates, discount rates, offset mortgages, capped mortgages, and something called a "collar" which sounds like something a vet fits after surgery. Each has fees — arrangement fees, booking fees, valuation fees, exit fees, and the mysterious "product fee" which is genuinely just "another fee we invented."
Research from the FCA has consistently shown that consumers overpay on financial products when the pricing structure is opaque. Not because we're stupid. Because we're busy, tired, and life is short.
The industry knows this. The industry is counting on this.
Why Simple Products Barely Exist
Ever noticed how the genuinely good financial products — a low-cost index fund, a Cash ISA that just pays the advertised rate — barely get advertised?
There's a reason. They don't have enough margin to spend on marketing. The stuff you do see plastered across Tube stations tends to be structured products with names like "Enhanced Kick-Out Autocall" — which is neither enhanced nor a good kick anywhere useful.
Complex products carry fatter margins because customers can't easily tell what they're paying. A fund with a 0.15% ongoing charge is competing on a knife edge. A fund with a 1.5% charge, a 5% initial fee, an exit penalty, and a performance kicker? That fund can afford billboards, sponsorships, and someone called "Giles" to take you to lunch.
Illustrative figures — actual costs vary by provider
The gap looks small annually. Over 30 years, the difference between a 0.15% and a 1.5% fee on a growing portfolio can eat roughly a third of your final pot. That's not a rounding error. That's a house.
The Small Print Isn't Small By Accident
Behold, the terms and conditions — a document longer than War and Peace but with fewer lovable characters.
The average current account T&Cs run to about 30,000 words. The average person reads at 250 words per minute. So a diligent customer would need two hours per bank switch just to know what they've signed. Nobody does this. The banks know nobody does this. The regulators know the banks know.
What lurks in those pages? Fun surprises like:
- Overdraft rates that flip from 0% to 39.9% APR after a "promotional period"
- "Dormancy fees" if you don't use the account for 12 months
- Cross-selling clauses that let them share your data with "carefully selected partners" (spoiler: the selection criteria is "paid us")
- Tiered interest rates that only pay the headline number on the first £1,000
None of this is illegal. All of it is legal specifically because it's technically disclosed. Somewhere. On page 47. In a footnote. Referencing an appendix.
The Beautiful Trick of Bundling
Bundling is complexity's favourite disguise. If you can't compare like for like, you can't tell you're overpaying.
Packaged bank accounts are the classic example. For £15 a month, you get travel insurance you'll never claim on, breakdown cover for a car you may not own, phone insurance with an excess higher than a new phone, and a "concierge service" that mostly seems to book restaurants you could have booked yourself in 30 seconds.
Sold separately, would you buy any of it? Probably not. Bundled? "Well, £15 a month, seems reasonable, and I might need the travel insurance."
That's £180 a year. Over a decade, £1,800. And most people never claim on any of it.
Rough illustrative breakdown
The trick works because unbundling requires effort. You'd need to check whether your travel insurance is already covered by your credit card, whether your home insurance includes gadget cover, whether your car breakdown is included with the manufacturer's warranty. Nobody has time. So the £15 keeps going out. Every month. Forever.
Complexity as a Retention Strategy
Here's the darkest bit: complex products don't just extract more money — they trap you.
Ever tried to switch pension providers? It's like breaking up with someone who insists on "one last conversation" that lasts six months and involves three different forms, two identity checks, and a helpful letter suggesting you might want to reconsider.
The financial industry has quietly perfected friction. Not enough to violate rules. Just enough to make you give up halfway through and mutter "I'll deal with it next month." You will not deal with it next month. That's the whole point.
Compare this to Netflix, where you can cancel in about four clicks. When a business genuinely wants your loyalty, they make leaving easy and stay great. When a business relies on inertia, they make everything a bureaucratic assault course.
If a provider makes it hard to leave, ask yourself why. The answer is rarely flattering.
How to Fight Back Without Becoming a Spreadsheet Hermit
You don't need to become one of those people who tracks every latte in a colour-coded ledger. But a few habits genuinely help:
Default to boring. If you can't explain the product to a mildly interested friend in 60 seconds, it's probably too complex to buy. Simple beats clever roughly 90% of the time in personal finance.
Ask the "all-in" question. For any product, ask: "What's the total cost per year, including every fee, every charge, and every possible penalty?" If they can't give you a straight answer, that IS your answer.
Do an annual audit. One evening a year — put a bottle of something drinkable next to your laptop — and check every subscription, account fee, and financial product. Cancel what doesn't earn its keep. This single habit tends to recover £200–£800 a year for most people.
Beware bundles. Anything sold as a "package" deserves suspicion. Price the components separately. Nine times out of ten, it's cheaper unbundled.
Read reviews from people trying to leave. Not people signing up. The horror stories of exit are more instructive than the honeymoon reviews.
The Takeaway
Complexity in finance isn't a coincidence, and it isn't your fault for finding it confusing. It's a deliberately engineered feature that transfers money from your account to someone else's — usually via a route so winding you never quite notice.
The good news: awareness is most of the battle. Once you assume that any complicated product is complicated for a reason, you'll start noticing the reason. And you'll start choosing simpler alternatives that quietly do the same job for less.
Your future self — richer, calmer, and no longer receiving letters about "product enhancement opportunities" — will thank you.