Web accessibility stopped being optional. The European Accessibility Act has been enforced since June 28, 2025, and it reaches any business that sells products or services to EU customers, regardless of where that business is based. In the United States, the Department of Justice's ADA Title II rule requires public bodies to meet WCAG 2.1 Level AA by April 2026, and private-sector lawsuits keep climbing every year.
For a company shipping a website or app, that means a real deadline and real financial exposure. EAA penalties can reach 5% of annual turnover for large companies, and a single ADA complaint can cost tens of thousands to settle before you have fixed anything.
The good news: the standard everyone points to, WCAG 2.1 AA, is well-defined and achievable. The bad news is that the most heavily marketed shortcut, the accessibility overlay widget, does not get you there and can make your legal position worse. This guide covers what the law actually requires, why the quick fix backfires, and how we build accessibility into a site from the start instead of bolting it on at the end.
What the law actually requires
Three names come up constantly, and they fit together cleanly. WCAG 2.1 Level AA is the technical standard. The EAA and the ADA are the laws that, in practice, point back to it. In Europe, meeting WCAG 2.1 AA satisfies the digital requirements of the harmonized EN 301 549 standard, which is how you demonstrate EAA conformance.
