For most organizations, software accessibility used to be treated as a nice-to-have — something added at the end if there was time. That assumption no longer holds. Accessibility is now a legal obligation for a wide class of digital products, a factor in who can and cannot use your systems, and a signal of product quality. Yet accessibility is often invisible in the buying process: it rarely appears on a feature comparison sheet, and its absence only becomes obvious when a user who relies on a screen reader, keyboard navigation, or captions cannot complete a task. This guide looks at software accessibility from a decision-maker’s perspective — what it is, why it belongs in your evaluation, and how to assess it before you commit.
What Software Accessibility Actually Means
Accessibility is the degree to which a product can be used by people with a range of abilities, including those who are blind or have low vision, are deaf or hard of hearing, have motor impairments, or have cognitive differences. In practice it covers things like whether a screen reader can announce every control, whether the entire interface can be operated with a keyboard alone, whether color is never the only way information is conveyed, whether text can be resized without breaking the layout, and whether video content offers captions and transcripts.
It is important to separate accessibility from two things it is often confused with. It is not the same as usability in general — a product can be pleasant for most users and still be unusable for someone relying on assistive technology. And it is not a cosmetic layer added at the end; genuine accessibility is built into how a product is designed and structured, which is precisely why it is hard to bolt on later.
Why Accessibility Belongs in the Buying Decision
Decision-makers sometimes assume accessibility is an engineering detail. It is not — it is a business and risk question, for four reasons.
- Legal exposure. Accessibility is increasingly mandated. In the European Union, the European Accessibility Act has applied since 28 June 2025, bringing a broad range of digital products and services into scope. Similar obligations exist in other jurisdictions. Buying an inaccessible product can transfer that exposure to your organization.
- Workforce reach. If internal software is inaccessible, you narrow the pool of employees who can use it — and you may create barriers for existing staff whose needs change over time.
- Customer reach. For customer-facing software, inaccessibility quietly excludes a share of your market and damages reputation when it becomes visible.
- Quality signal. Products built with accessibility in mind tend to have cleaner structure, better keyboard support, and more robust interfaces — benefits that reach all users, not only those with disabilities.
The Standard Regulators Point To
When accessibility becomes a legal question, the practical benchmark almost always traces back to the Web Content Accessibility Guidelines (WCAG), published by the W3C. WCAG is organized around four principles — content should be perceivable, operable, understandable, and robust — and defines conformance levels A, AA, and AAA. In practice, Level AA is the target most regulations and procurement rules adopt.
There is a nuance worth knowing. In the EU, conformance is assessed through the harmonized standard EN 301 549, which currently references WCAG 2.1 as the enforceable baseline. A newer version incorporating WCAG 2.2 has been published and is expected to be cited officially, so WCAG 2.2 Level AA is the sensible forward-looking target. You do not need to master the guidelines yourself; what matters is knowing which version and level a vendor claims to meet, and asking for evidence.
Evaluating a Product Through an Accessibility Lens
| Dimension | What to look for | Warning sign |
|---|---|---|
| Stated conformance | A clear claim (e.g. “WCAG 2.2 AA”) backed by documentation | Vague assurances like “fully accessible” with nothing behind them |
| Evidence | An accessibility conformance report (such as a VPAT/ACR) and recent audit results | No report, or one that is years old |
| Keyboard operability | Every function reachable and usable without a mouse | Controls that only respond to clicks or hover |
| Assistive technology | Tested with real screen readers, not just automated scanners | “We ran an automated checker” as the only proof |
| Ongoing commitment | Accessibility in the roadmap; a way to report and track issues | Accessibility treated as a one-time certification |
One caution about evidence: automated testing tools catch only a fraction of accessibility issues — many important barriers can only be found through manual testing with assistive technology and real users. A vendor who leans entirely on an automated score is telling you how shallow their testing is.
Accessibility as an Ongoing Commitment, Not a Certificate
A product that is accessible today can regress tomorrow. Every new feature, redesign, or third-party component is an opportunity to introduce barriers. This is why the most useful thing to assess is not a single certificate but the vendor’s process: do they test accessibility as part of every release, do they have a documented way for users to report barriers, and do those reports actually get resolved? A vendor treating accessibility as a living discipline is far more valuable than one holding a certificate earned once and never revisited.
The same logic applies internally. If you configure, customize, or extend a purchased product, you can undermine its accessibility — a custom form, a branded theme, or an added widget can each break what the vendor shipped. Accessibility has to be part of how you deploy and maintain software, not only how you buy it.
Common Pitfalls
- Confusing an accessibility overlay with accessibility. Third-party “accessibility widgets” that overlay a site rarely deliver genuine conformance and can introduce new problems. They are not a substitute for a product built correctly.
- Trusting automated scores alone. A high automated score with no manual testing gives false assurance.
- Leaving accessibility out of the requirements. If it is not in your RFP or acceptance criteria, you have no leverage to demand it later.
- Assuming internal tools are exempt. Even where the law focuses on customer-facing products, inaccessible internal software still excludes employees and creates real operational risk.
Frequently Asked Questions
Is accessibility only about visual impairment? No. It also covers hearing, motor, and cognitive needs — captions, keyboard operability, clear language, and predictable behavior all matter.
Can we add accessibility after purchase? Some issues can be mitigated, but accessibility depends heavily on how a product is built. Retrofitting is far more expensive and less effective than choosing an accessible product from the start.
What single question should we ask a vendor? “Which WCAG version and level do you conform to, and can you share your conformance report and how you tested it?” The quality of the answer tells you most of what you need to know.
Conclusion
Software accessibility is no longer optional, and it is not something a supplier can convincingly add at the end. For decision-makers, the shift is simple but important: treat accessibility as a first-class evaluation criterion alongside functionality, security, and cost. Put it in your requirements, ask for real evidence rather than reassurances, and favor vendors who treat it as an ongoing discipline. Doing so protects your organization legally, widens who can use your systems, and tends to signal a better-built product overall.
This article is general information and not legal advice; obligations vary by jurisdiction and product type, so confirm your specific requirements with qualified counsel.
Related reading: Software Requirements and Scoping and Software Vendor Selection: A Decision-Maker’s Framework. To discuss accessibility as part of your next software decision, talk to the ProSoftService team.