ADA Website Accessibility for US Small Businesses: A Practical WCAG Checklist

Does the ADA apply to my business website?

Title III of the Americans with Disabilities Act covers “places of public accommodation”, such as shops, restaurants, hotels, clinics and many service businesses. The Department of Justice has long taken the position that the ADA applies to the websites of these businesses, and published guidance saying so in 2022. Courts have differed on details, particularly for businesses without a physical location, but the practical risk for any US business that serves the public online is real.

For state and local governments, the DOJ adopted a specific rule in 2024 that requires WCAG 2.1 Level AA. There is no equivalent technical rule for private businesses, which is why WCAG 2.1 AA has become the de facto benchmark in settlements and demand letters.

What is WCAG 2.1 AA?

The Web Content Accessibility Guidelines, published by the W3C, define how to make web content usable by people with disabilities. They are organised around four principles: content must be perceivable, operable, understandable and robust. Level AA is the middle conformance level and the one most laws and policies reference. WCAG 2.2 is the latest version; building to 2.2 AA also covers 2.1 AA.

Do accessibility overlay widgets make a site compliant?

No. Toolbar and overlay plugins that promise one-line ADA compliance don’t fix the underlying code, and many accessibility experts and disabled users report that they can make sites harder to use. Businesses using overlays have still received lawsuits. Fixing the site itself is the reliable approach.

A practical accessibility checklist

Structure: one H1 per page, logical headings, landmarks (header, nav, main, footer) and a “skip to content” link. Images: meaningful alt text; decorative images marked as such. Colour: sufficient contrast, and never colour alone to convey meaning. Keyboard: every link, menu, button, modal and form works with the keyboard, with a visible focus outline. Forms: visible labels, clear instructions, accessible error messages. Media: captions on videos, transcripts for audio, and no auto-playing sound. Motion: respect reduced-motion preferences. Language: set the page language so screen readers pronounce content correctly.

Test with automated tools such as Lighthouse or axe, which catch many issues but not all, then test manually with a keyboard and a screen reader (VoiceOver on Mac and iOS, NVDA on Windows).

What should you do if you receive a demand letter?

Don’t ignore it, and don’t just install an overlay. Speak to a lawyer, get an accessibility audit of the pages mentioned, fix the issues and document the fixes and your ongoing process. An accessibility statement with a contact route for users who hit problems also shows good faith.

How much does it cost to make a website accessible?

It depends on the site’s size and how it was built. Fixing a small brochure site is often a focused project; large sites with many templates and third-party widgets take longer. Building accessibility in from the start is far cheaper than retrofitting. WebsNexus includes WCAG 2.1 AA practices in new builds and offers audits and fixes for existing sites, with focused web development work starting from $100.