Accessibility ROI: how much it is worth to include 15% of your customers
Conversion, loyalty, employer brand, legal risk avoided. The five economic vectors that make investing in accessibility pay off sooner than it seems.
Accessibility is still treated by many committees as a cost. The data tells another story: it pays off, and pays off fast. A 2024 Forrester study put the average ROI of comprehensive digital accessibility projects in Fortune 500 companies at 13:1.
1. Expanded market
15% of the world's population lives with some form of disability — 1.3 billion people according to the WHO. Adding their families and close circles, the market exceeds 2 billion people and moves more than 8 trillion dollars a year, according to Return on Disability Group. In Europe, the 'purple market' (Purple Pound in the UK) exceeds 274 billion pounds annually.
2. Conversion and loyalty
Forrester studies show conversion increases of 12 to 35% on sites that improve their accessibility, because accessible design is, in general, better design: clear text, legible contrasts, simple forms, predictable navigation. It benefits all users.
The case of Lloyds Bank, which redesigned its online banking applying WCAG 2.1 AA in 2022, is paradigmatic: 23% increase in online transaction completion and 18% reduction in customer service calls.
3. SEO and discoverability
Accessibility practices (alt text, semantic hierarchy, clear language, video transcripts) match SEO best practices. Google Search Central explicitly recommends following WCAG as a baseline. Accessible sites rank better, especially in voice search.
4. Employer brand
Companies that show real commitment to accessibility attract and retain talent better, especially among under-35s. A Deloitte study (2023) found that 64% of professionals under 35 consider DEI commitment (diversity, equity and inclusion) as a decisive factor when choosing an employer.
5. Legal risk avoided
With the EAA in force, non-compliance fines reach one million euros in Spain. In the United States, ADA lawsuits reached 8,227 in 2023, with average cost per case between 25,000 and 100,000 dollars. Any preventive investment easily pays back.
How to build the business case
- Quantify your current market share among people with disabilities
- Estimate the loss due to abandonment in critical inaccessible flows
- Calculate the cost of reactive remediation vs. proactive investment
- Include savings in customer service and support
- Add the reputational value measured in NPS and employer brand
Conclusion
The question is no longer whether to invest in accessibility. It is how much is being lost each month that it is not done. And, with the EAA in force, how much is risked each day it is postponed.