ADA Website Accessibility for US Businesses in 2026

US businesses received more than 4,600 federal ADA Title III web accessibility lawsuits in 2024, and the pace through 2025 has not slowed. For any business that serves the public — and increasingly for those that do not — the legal exposure from an inaccessible website is no longer theoretical. The good news is that the technical bar is well defined, and meeting it is straightforward once you know what to look for.

Why ADA Title III applies to websites

Title III of the Americans with Disabilities Act prohibits discrimination in “places of public accommodation.” Although the statute was written in 1990, the Department of Justice and the federal courts have consistently held that this includes websites and mobile applications operated by businesses open to the public. The reasoning is straightforward: a business that offers its goods or services through a website is using that website as a point of sale, which is functionally a place of public accommodation.

The practical consequence is that restaurants, retailers, professional services, healthcare providers, and SaaS products sold to US consumers can all be sued. Most claims are filed by individuals or serial plaintiffs represented on contingency. Settlements range from a few thousand dollars to seven figures, and the Department of Justice has entered consent decrees requiring remediation, training, and ongoing audits.

WCAG 2.1 AA is the baseline

There is no single statutory definition of an “ADA-compliant website,” but the courts and regulators have converged on Web Content Accessibility Guidelines (WCAG) 2.1 Level AA as the operative standard. WCAG 2.2 was published in 2023 and is increasingly referenced, but 2.1 AA remains what most demand letters cite.

WCAG 2.1 is organized around four principles, remembered as POUR:

• Perceivable. Content must be presentable in ways users can perceive. Images need text alternatives. Video needs captions. Color cannot be the only signal.
• Operable. Users must be able to operate the interface. Every interactive element must be reachable by keyboard, with enough time to use it and no flashing that could trigger seizures.
• Understandable. Information and operation must be understandable. Text is readable, pages behave predictably, and form errors are explained clearly.
• Robust. Content must work with current and future assistive technologies, which means clean, semantic markup.

Most small business websites can meet these requirements with deliberate design choices and recurring patterns that automated tools can flag.

The recurring failures

After reviewing hundreds of US accessibility audits, the same handful of issues account for the majority of findings. Missing alt text on images is the most common. Every meaningful image needs descriptive alt text; decorative images should use empty alt attributes so screen readers skip them.

Insufficient color contrast is the second. Body text needs a contrast ratio of at least 4.5:1 against its background. Large text, defined as 18 point regular or 14 point bold, needs at least 3:1. Many brand palettes fail out of the box and need a deeper tone for body text.

Keyboard traps, where focus gets stuck and cannot move on, are the third. Every interactive element must be reachable and operable with a keyboard alone. Sliders, custom dropdowns, and modal dialogs are common offenders.

The fourth is missing form labels, where a screen reader cannot announce what an input is for. Each field needs a programmatically associated label.

The fifth is inaccessible PDFs and documents. A PDF posted on your site is part of your website and must be accessible.

A practical audit in five steps

A useful audit is more a project than a checklist. Begin with an automated scan using axe, WAVE, or Lighthouse. These tools catch roughly a third of issues and identify the obvious ones quickly. They cannot, however, judge whether alt text is meaningful or whether the reading order makes sense.

Second, conduct a manual keyboard test. Unplug your mouse and navigate the entire site using Tab, Shift+Tab, Enter, Escape, and arrow keys. Every interactive element should be reachable and operable, and focus indicators should always be visible.

Third, run a screen reader session using NVDA on Windows or VoiceOver on macOS. Listen to how a first-time visitor would experience the home page, a product page, a contact form, and the checkout flow.

Fourth, review your PDFs and downloadable documents. Either remediate them or link to accessible HTML alternatives.

Fifth, document the audit, including scope, methodology, tools used, and findings. Courts and regulators treat documented audits favorably. A recurring annual audit, even internal, demonstrates good faith.

Remediation that holds up

Most fixes are cheap and durable. Add alt text to images. Pick a body-text color that meets 4.5:1. Use semantic HTML, headings in order, real button elements for actions, and real link text that makes sense out of context. Add visible focus styles. Test every form with a screen reader.

For more complex issues — custom widgets, third-party chat widgets, embedded video players — favor patterns with established accessibility support. A custom dropdown that you build yourself is rarely as accessible as a well-implemented native select or a tested component library.

If your business is at material risk, an annual external audit by an IAAP-certified accessibility professional is worth the cost. The combination of automated scanning, manual testing, and an attested report from a named firm is the strongest defense if a claim is filed.

Accessible websites reach more customers, work better in any context, and align with the legal expectations that have hardened over the past decade. The investment is modest, the standard is clear, and the alternative is now genuinely expensive.