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WCAG accessibility audit for a corporate site in London in 2026

Mohamed Bah·Fondateur, Kolonell
September 5, 2026
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WCAG accessibility audit for a corporate site in London in 2026

WCAG accessibility audit for a corporate site in London in 2026

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The verdict in three sentences

Since 28 June 2025, the European Accessibility Act extends the digital accessibility obligation to many private companies, not just the public sector. A corporate site must target WCAG 2.1 AA, verified by an audit costing 2,500 to 6,000 EUR, followed by remediation of 4,000 to 12,000 EUR. Beyond the fine risk, accessibility opens the site to the millions of people with disabilities and improves SEO.

The criteria grid and the cost of the audit

WCAG 2.1 AA covers success criteria across four principles: perceivable, operable, understandable, robust. The audit measures the conformance rate and produces a mandatory public statement.

Service2026 range (EUR)Deliverable
Rapid audit (25 key criteria)1,500 - 2,500Major non-conformance report
Full WCAG audit (all criteria)3,500 - 6,000Detailed grid + score
Conformance statementincluded - 800Mandatory published page
User-journey audit800 - 1,500Test with assistive tech
Editorial team training900 - 1,800Half-day accessibility session
Post-remediation re-audit1,200 - 2,500Verification of fixes

The accessibility statement is a legal obligation: it must state the conformance rate (e.g. "partially conformant, 78 %") and be reachable from every page.

Prioritization: fix what blocks first

Not all non-conformances have the same impact. Smart remediation first tackles the criteria that fully block use for a screen-reader or keyboard user.

PriorityFix typeEffortUser impact
CriticalText alternatives for imagesLowVery high
CriticalFull keyboard navigationMediumVery high
HighColour contrast (4.5:1)LowHigh
HighForm labelsLowHigh
MediumHeading structure (h1-h6)LowMedium
MediumVisible focusLowMedium
LowVideo captionsHighTargeted

By tackling the first four rows, a site typically moves from 60 % to over 85 % conformance for less than 40 % of the total remediation budget. That is the best effort-to-conformance ratio.

Mini case study

Nathalie, communications director of a London borough authority, runs a 320-page corporate site assessed at 58 % WCAG conformance. The full audit costs 5,500 EUR, remediation estimated at 11,000 EUR.

By prioritizing critical and high fixes (text alternatives, keyboard navigation, contrast, labels), the team reaches 87 % conformance for 4,200 EUR, i.e. 38 % of the budget. The rest (video captions, complex cases) is scheduled over two quarters. Result: the statement moves from "non-conformant" to "partially conformant (87 %)", the enforcement risk is removed, and organic traffic rises 9 % thanks to the better semantic structure detected by Google.

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FAQ

Who is covered by the European Accessibility Act in 2026?

The public sector for years, and since June 2025 many private services: banking, e-commerce, transport, telecoms, above certain thresholds. A company over 10 staff and 2 M EUR turnover offering online services to the public is generally covered.

What fine applies for non-compliance?

In many EU countries, up to 50,000 EUR per non-conformant service, renewable. Beyond the fine, reputational risk and user litigation weigh heavily for a public institution.

How long does full remediation take?

For a 300-page site, budget 6 to 12 weeks depending on depth. Critical criteria are fixed in 2 to 3 weeks; video captions and accessible PDFs take the longest.

Is an accessibility overlay plugin enough?

No. Automatic overlays (floating widgets) do not fix underlying problems and are explicitly rejected by user associations and several court rulings. Only in-code remediation guarantees conformance.

Must the audit be redone every year?

A re-audit is recommended after each major remediation, and a full audit every 2 to 3 years or at each redesign. The conformance statement must be kept current continuously.

Let's scope your project. Send us your page count and estimated conformance level: we price the audit (2,500-6,000 EUR) and a high-impact, prioritized remediation. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.

Tags:#accessibility audit#wcag 2.1 aa#corporate site london#european accessibility act#audit#compliance
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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.