Inaccessible design is invisible revenue loss

Most organisations approach digital accessibility through compliance: a regulator, a deadline, a fine ceiling. That framing is legitimate, but it misses the commercial argument entirely. Inaccessible digital products are not only a legal risk. They are losing revenue that organisations cannot measure, because the data they collect only captures the users who got through.

The users who hit a barrier and left never reached the point where your analytics could record them. They are absent from your conversion data, your cart abandonment reports, your session recordings. The revenue they represent is invisible — not because it is small, but because the measurement systems organisations rely on are blind to it.

What the data shows

The Barómetro de Accesibilidad Web 2025, a major post-EAA compliance study of 204 private-sector websites, provides the clearest sector-level picture available.

These figures measure technical failure rates, not conversion loss directly. But the commercial implication is direct: a site that fails WCAG criteria at the level described is one where a significant share of users with disabilities cannot complete the tasks your product is designed for. Those are lost transactions.

The size of the market you are not measuring

Estimates of the disabled population in Europe range from 15% to over 20% depending on how disability is defined and measured. That range reflects genuine complexity: disability includes visual, hearing, motor, and cognitive impairments, many permanent, some temporary or situational. A user with a broken arm, a user in a noisy environment, a user on a slow connection — all benefit from accessible design.

Whatever the precise figure, this is not a niche. It is a share of potential customers that most organisations are not reaching, not tracking, and not accounting for in their commercial planning.

Why the loss stays invisible

A user who cannot complete a booking because a date picker is inaccessible to their screen reader does not generate an abandonment event in your analytics. They did not add to the cart and leave. They could not get that far. There is no record of the attempted journey, no signal in your data, no prompt to investigate.

This is different from ordinary conversion failure. Ordinary abandonment is measurable: you can see where users dropped off, run tests, make changes, and measure the effect. Accessibility abandonment is invisible at the point of failure. The only way to find it is to test with users who use assistive technology, or to audit the user journeys that matter most against accessibility standards.

The cost of finding accessibility barriers late

Research presented at Microsoft Build in June 2026 by Jessie Lorenz, a blind product manager at Microsoft, quantified what accessibility professionals have long understood: the later in the development process an accessibility barrier is found, the more expensive it is to fix. Addressing a barrier at the planning stage is essentially free — a conversation. At design, it costs ten times more. At development, one hundred times more. After a product has shipped, one thousand times more.

This framing matters commercially because it reframes accessibility as a cost-reduction question, not just a compliance question. Organisations that build accessibility in from the start spend less than those who fix it after the fact — and far less than those who face enforcement action for failing to fix it at all. Accessibility debt compounds the same way security debt does.

Lorenz put the human dimension plainly: she experiences the barriers that get shipped, not as a researcher observing them, but as someone who encounters them in daily life. The cost escalation data and the lived experience are describing the same thing from different angles.

The compliance case and the commercial case are the same problem

Accessibility barriers that exclude disabled users are also barriers that create friction for everyone. A form that is difficult to navigate by keyboard is difficult to navigate on a phone. An image without a text alternative fails a screen reader user and also fails a search engine crawler. A video without captions excludes a deaf user and also a user watching in a quiet office.

Organisations that fix accessibility barriers as part of a compliance programme tend to find that their conversion metrics improve across the board. The compliance work and the commercial improvement are not separate activities. They address the same underlying problems in the same user journeys.

For financial services organisations in particular, the stakes are high on both tracks. The 32% technical failure rate is the worst of any sector. Combined with active enforcement by the AFM in the Netherlands, ComReg in Ireland, and PTS in Sweden, the commercial and legal exposure sit in exactly the same place.

What accessibility ROI actually looks like

The return on accessibility investment is not primarily a cost saving — it is a revenue recovery. The question is not "how much does fixing this cost?" but "how much revenue is currently lost because users cannot complete this journey?"

For e-commerce, the calculation starts with the size of the disabled customer base and the blocking rate in your checkout flow. For financial services, it starts with account opening, payment initiation, and balance enquiry — the core transactions that 32% of financial services sites currently fail to support. For travel, it starts with the booking flow, where 40% of sites create hard stops for users with disabilities.

A free initial assessment covers where your product may have barriers in these journeys, what those barriers mean for your compliance position, and what a proportionate next step looks like commercially and legally.