There is a persistent tendency in marketing to treat design as the last decision: something that gets resolved after strategy, content, and budget have been divided. The consequence of that sequencing is visible in almost every industry, in websites that communicate nothing clearly, checkout flows that lose customers mid-transaction, and mobile experiences that behave as though the smartphone was a recent invention.

Design is not decoration applied after the thinking is done. It is the thinking made visible. And its relationship to revenue is considerably more direct than most brand conversations acknowledge.

The numbers brands keep ignoring

The Forrester research on UX ROI is so frequently cited it has started to feel like furniture: every $1 invested in UX can yield a return of up to $100, translating to a 9,900% ROI. The figure sounds implausible until you look at what bad design actually costs. 88% of online consumers are less likely to return to a site after a poor user experience, and slow-loading websites cost businesses up to $2 billion annually in lost revenue. (Forrester / HyperSense, 2024)

According to McKinsey, companies prioritizing design have 32% higher revenue growth and 56% higher total return to shareholders than their competitors. These are not soft brand metrics. They are the kind of numbers that belong in a CFO conversation, not just a design brief (Eleken, 2024).

Friction is a revenue problem

The most instructive case study in UX history is also the simplest. A large e-commerce company was losing significant revenue without understanding why. Usability testing revealed that customers resisted registering before checkout: they wanted to buy and leave. The design team replaced the "Register" button with a "Continue" button and added a note assuring customers they didn't need an account to buy. Sales surged by 45% in the first month, resulting in over $300 million in additional revenue over time. (CreateApe, 2025)

One button. Three hundred million dollars. The lesson is not that design is magic. It is that friction is expensive, and most organisations have no systematic way of seeing where their friction actually lives.

If a website takes more than three seconds to load, 40% of visitors will leave. Mobile users are five times more likely to abandon a task if the website is not optimised for mobile. These are not edge cases. They are the baseline conditions under which most digital marketing investment is currently being wasted (Baymard Institute).

UI and UX are not the same problem

The conflation of UI and UX is itself a design failure. User interface design is concerned with how things look and how interactions are structured: typography, colour, component hierarchy, visual weight. User experience design is concerned with how the overall journey feels and whether it makes sense: information architecture, flow logic, task completion, error recovery.

Both matter. But they fail differently. A site can be visually polished and functionally frustrating. It can also be visually rough and navigationally effortless. The brands that treat UI investment as a substitute for UX thinking tend to produce beautiful experiences that convert poorly, because no amount of aesthetic refinement compensates for a journey that makes users work too hard.

Where most brands are actually underinvesting

The underinvestment is rarely in visual design. Most brand teams have opinions about colour and typography. The gap tends to be in the unsexy middle: the checkout flow, the mobile experience, the error states, the form logic, the loading behaviour, the post-purchase communication. These are the moments where customers decide whether they trust the brand enough to transact, and they are almost never part of the brand conversation.

Improving UX design to increase customer retention by just 5% can translate to a 25% rise in profit. That figure reframes where design investment should be directed: not towards the homepage header, but towards the moments of highest friction and highest commercial consequence (Maze, 2026).

Design is part of the sales infrastructure. Treating it otherwise is not a creative decision. It is a financial one.

References

  • Forrester Research / HyperSense. (2024). The Business Impact of User Experience. HyperSense Software. Link
  • McKinsey & Company / Eleken. (2024). UX ROI Case Studies That Prove the Value of UX Design. Eleken. Link
  • Spool, J. M. / CreateApe. (2025). Measuring the ROI of User Experience Design. CreateApe. Link
  • Baymard Institute. (2024). 40+ UX Statistics from 200,000 Hours of UX Research. Baymard Institute. Link
  • Maze. (2026). 30+ Essential UX Stats for 2026 Strategy. Maze. Link

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