The verdict in three sentences
A WCAG 2.1 AA / RGAA compliant site costs between EUR 3,000 and 12,000 in 2026 depending on size, plus an accessibility audit at EUR 1,500 to 4,000. On a new build, designing for compliance from the start adds only 10 to 20% to the budget, versus a far heavier cost in later remediation. Non-compliance has exposed businesses to penalties since 2025 and excludes up to 15% of users: accessibility is now a CIO topic, not a nice-to-have.
What compliance costs in 2026
The French RGAA framework (aligned with WCAG 2.1 level AA) applies to a growing number of companies, and the European Accessibility Act has extended the obligation to many private digital services since June 2025. Costs break down into three items: audit, remediation, and conformity statement.
| 2026 item | Brochure site (< 20 pages) | Corporate site (20-80 pages) | Portal / app |
|---|---|---|---|
| Accessibility audit | EUR 1,500 - 2,500 | EUR 2,500 - 4,000 | EUR 4,000 - 8,000 |
| Remediation | EUR 3,000 - 5,000 | EUR 5,000 - 9,000 | EUR 9,000 - 20,000 |
| Statement + multi-year plan | EUR 500 - 900 | EUR 800 - 1,500 | EUR 1,500 - 3,000 |
| Uplift on a new build | +10% | +15% | +20% |
| Remediation lead time | 2 - 3 weeks | 3 - 5 weeks | 5 - 8 weeks |
Building accessibility in from the design stage (contrast tokens, tested ARIA components) is always cheaper than fixing it afterwards, where each defect costs two to three times more.
The hidden cost of non-compliance
Beyond the penalty risk (up to EUR 50,000 per non-compliant service under the applicable regime, 2026 order of magnitude), inaccessibility has a direct commercial cost: lost audience and degraded SEO.
| Impact | 2026 estimate | Business effect |
|---|---|---|
| Excluded users | 10 - 15% of traffic | Lost conversions |
| SEO uplift (semantic HTML) | +5 - 12% organic traffic | Acquisition |
| Bounce rate reduction | -8 - 15% | Engagement |
| Annual penalty risk | up to EUR 50,000 | Legal |
| Reputation cost (public tenders) | possible exclusion | Commercial |
An accessible site is better structured, faster and better indexed: the investment pays off in compliance and marketing performance alike.
Mini case study
Marc, CIO of a 600-person industrial mid-cap in Nantes, must bring a 55-page corporate site into compliance before a public tender. Committed budget: audit EUR 3,200 + remediation EUR 7,500 + statement EUR 1,100 = EUR 11,800. The site was excluded from 3 public tenders a year averaging EUR 90,000; becoming eligible again and winning even one deal covers the investment more than 7 times over. The SEO gain (+8% organic traffic) adds roughly 40 leads a year as a bonus.
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FAQ
Which companies are subject to the obligation in 2026?
Every company with over EUR 2 million turnover in France, public services, and since June 2025 many B2C digital services via the European Accessibility Act. The scope widens every year.
How much is the audit alone?
Between EUR 1,500 and 4,000 depending on site size in 2026. A full audit covers the 106 RGAA criteria and delivers a report prioritised by severity and fix effort.
Can an existing site be made compliant without rebuilding it?
Yes in most cases: remediation targets semantic HTML, contrast, keyboard navigation and text alternatives. Expect EUR 3,000 to 20,000 depending on scope, versus only a 10-20% uplift if it is folded into a redesign.
Does accessibility really improve SEO?
Yes: semantic structure, alt text, heading hierarchy and performance are shared factors between accessibility and search. A +5 to +12% organic traffic gain after compliance is common.
What is the lead time for compliance?
From 2 to 8 weeks depending on size and site type in 2026. A brochure site takes 2-3 weeks; a complex application portal may need 5 to 8 weeks of remediation.
Let's scope your project. Share your page count, whether there is an application area, and your regulatory deadline: we will price the audit, remediation and RGAA statement. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
