Here’s a question worth sitting with: would you rather grow your turnover by 25%, or keep an extra £250,000 in the business?Most owners answer without thinking. Growth, obviously. A bigger top line looks good on the dashboard, sounds good at the golf club, and feels like proof the business is heading the right way.But those two outcomes aren’t opposites, and they’re not automatically linked either. We’ve seen businesses hit that 25% turnover growth and end up worse off in real terms. We’ve seen others barely move the top line and come out significantly ahead. The difference isn’t effort, luck, or even market conditions. It’s whether anyone stopped to check what the growth was actually made of.If your turnover keeps climbing but the bank balance never quite reflects it, you’re not imagining things, and you’re not alone. This is one of the most common patterns we see in management accounts right now, and it has a name.What is money illusion, and why is it quietly costing you profit?Money illusion is the tendency to look at bigger numbers and assume you are better off, without allowing for the fact that everything else has become more expensive too. Put simply, it is easy to mistake a bigger cash number for real growth. Your accounting software shows the amount invoiced. Your bank statement shows the money coming in. But those figures do not show whether the business is actually better off once rising costs are taken into account.Since 2022, UK consumer prices have risen by more than 20%. That is the backdrop every business has been trading against, whether it is obvious in your regular financial reports or not. Some of that has been easy to see, such as energy, materials, and subcontractor rates. A lot of it has been quieter: higher wages, extra employment costs and borrowing that costs more than it did three years ago.Put plainly, a meaningful chunk of any turnover growth since 2022 hasn’t been growth at all. It’s been the business running to stay in the same place, with invoice totals rising to reflect a more expensive world rather than a more profitable one.The real cost increases hiding inside your “growth”There are specific, identifiable reasons your costs have risen faster than you may have priced for:Employer National Insurance is now 15%, and it applies from a much lower threshold of £5,000, down from £9,100. That’s a direct hit on every employee on your payrollThe National Living Wage has risen to £12.21 an hour, which has a knock-on effect through your whole pay structure, not just your lowest-paid roles.Borrowing costs remain well above the near-zero rates most businesses built their pricing, cash flow and investment decisions around before 2022.Corporation tax bands now mean profits above £250,000 are taxed at 25% (up from 19% pre-April 2023, a +30% uplift), with marginal relief tapering between £50,000 and £250,000, so a bigger profit number does not always mean more money available to you as the owner.None of these show up as a single hit. It’s a gradual shift, from several directions at once, which is exactly why they get absorbed into the cost base rather than triggering a proper review. It’s only when you step back and look at how much the business is really leaving for you over several years, rather than any single year in isolation, that the pattern becomes visible.Signs your growth might be an illusionYou don’t need a forecasting model to spot this. A few honest questions usually do it:Turnover is up, but your bank balance never seems to reflect itYou’re busier than you’ve ever been, but taking less home than a few years agoYour gross margin has drifted downward and you couldn’t say exactly when, or whyYou can’t confidently say which service, product line or client segment is actually profitable, only that the business “feels” fine overallYour last price increase happened because a cost went up, not because you reviewed your pricing on purposeIf two or more of those sound familiar, the issue almost certainly isn’t effort or demand. It’s that turnover has been left to do a job it was never designed for, telling you whether the business is actually getting better.How to calculate your real growthThis is worth doing properly, and it only takes three numbers.Your 2022 turnover, adjusted for inflation. Multiply your 2022 turnover by roughly 1.2 to see what it would need to be today just to have stood still in real terms.Your actual current turnover. Compare it to that adjusted figure. If your current turnover sits below it, the business has shrunk in real terms, even though every invoice this year was bigger than the one before.The money left for you, then and now. Look at the profit before your own pay or drawings in 2022 versus today. This is the number that tells you whether growth, or the lack of it, has actually made you better off. It’s the one figure turnover can’t fake.If that third number has moved in the wrong direction while turnover has moved in the right one, that’s not a business problem you fix with more sales. It’s a pricing and margin problem, and more turnover on the same terms will only make it worse, faster.Where the fix actually happensOnce you can see the real pattern, the fix doesn’t need to be huge. It’s usually one or two of the following:Look at which parts of the business actually make money. One overall turnover figure hides the detail you need. By splitting your numbers by service, product or customer type, you can see where growth is genuinely profitable and where it is just adding more work without enough reward. This is usually the first thing we help clients set up, because every other decision on this list depends on it.Review pricing on purpose, not by accident. If your last price change was a reaction to a supplier invoice rather than a planned decision, you are managing your margin by accident. A structured price review, with a simple explanation customers can understand, almost always adds more to the bottom line than any amount of cost-cutting.Look at what the business is really leaving for you. Profit only tells part of the story. What matters is how much of that profit is actually available to you, whether you take it as pay, dividends, pension contributions or leave it in the business for future use. Getting that right can be the difference between a “good year on paper” and a genuinely better outcome for you.Use regular numbers you can act on. Year-end accounts, reviewed nine or twelve months after the event, cannot show you any of this in time to act. Monthly or quarterly reports that show where profit is really coming from turn this from an annual surprise into something you can steer as the year goes on.This is the kind of work that sits behind every conversation we have with clients about growth, not because turnover doesn’t matter, but because it’s the wrong place to look first.If you haven’t compared your real, inflation-adjusted growth to your actual owner take home over the past few years, it’s worth doing before you set next year’s targets. Get in touch if you’d like help running the numbers properly, we’d love to talk through what it could look like for your business.Email enquiries@a4g-llp.co.uk or call 01474 853 856.Other posts of interest 21st September 2023Employee and Project Time Tracking for Architecture Firms Read more 7th November 20224 Credit Control tips for Businesses Read more 7th December 2025Budget changes for Landlords & Property Investors Read more See more articles