The Business Case for Web Accessibility

Web accessibility is usually pitched as a compliance obligation or a moral one. Both framings are valid, and both tend to lose budget fights. The argument that actually moves decisions is commercial, and it is strong.

A larger addressable market: around one in six people live with some form of disability. Add temporary and situational limitations — a broken arm, bright sunlight, a noisy train, an ageing eye — and the share of users who benefit from accessible design at some point is far higher. An inaccessible site turns those people away.

Better SEO: accessibility and search optimisation overlap heavily. Semantic HTML, descriptive alt text, proper heading structure, meaningful link text, transcripts and captions — search engines and screen readers parse a page in similar ways. Accessible sites tend to rank better.

Improved usability for everyone: sufficient colour contrast, clear focus states, keyboard navigation, readable font sizes, and predictable layouts make a site easier for all users, which shows up in engagement and conversion metrics.

Lower legal risk: accessibility-related complaints and lawsuits have risen year over year in multiple jurisdictions, and regulations continue to tighten. Retrofitting under legal pressure costs far more than building it in.

Cheaper to build in than to bolt on: accessibility addressed during design and development adds little cost. Addressed after launch, as a remediation project, it is expensive and disruptive.

Where to start: run an automated scan for the obvious issues, then a manual audit against WCAG 2.1 AA with keyboard-only and screen-reader testing. Fix the highest-impact issues first — contrast, focus visibility, form labels, alt text, and heading structure.

Treat it as ongoing. Every new component and content update is a chance to regress, so build accessibility checks into your design reviews and your deployment pipeline.