How Much Does Web Accessibility Cost?

“How much does this cost?” is the most practical question you can ask before starting any project, and accessibility is no different. The honest answer is: it depends — but not in the frustrating, evasive way that phrase usually lands. The cost of web accessibility genuinely varies based on where you’re starting from, how you approach it, and what outcome you need. This article breaks it down so you can plan realistically.

The biggest variable: when you start

Before any specific numbers, there’s one factor that dwarfs everything else: the earlier you address accessibility, the cheaper it is.

A color contrast issue caught by a designer before the brand palette is locked costs nothing to fix — it’s just a tweak to a hex value. The same issue caught after the site has launched requires a developer to update stylesheets, QA to retest, and a deployment to push the change. Caught by a plaintiff’s attorney after a demand letter arrives, it now costs all of that plus legal fees, settlement costs, and the distraction of a legal process.

This isn’t unique to accessibility — it’s the same cost curve as any software defect. But it’s worth naming clearly, because it’s why organizations that build accessibility in from the start spend dramatically less over time than those who treat it as a cleanup project.

Free: what you can do without spending anything

A meaningful starting point costs nothing.

Run a free automated scan on any page of your site. In under a minute you’ll have a clear view of the most common detectable issues — missing alt text, contrast failures, unlabeled form inputs, broken heading structure. These automated checks won’t catch everything (more on that shortly), but they surface the issues that appear most often and are quickest to fix.

Beyond that, you can open any page and try to use it with only a keyboard — no mouse. Tab through every interactive element, confirm focus is always visible, check that nothing traps you. This takes a few minutes per page and costs nothing except your time. Our common accessibility issues guide explains exactly what to look for.

Many teams are surprised how much ground they can cover with these two steps alone.

Low cost: fixing issues yourself

If your team has front-end development capacity, a significant portion of accessibility work can be done in-house, especially after the initial audit reveals what needs attention.

The most common issues — missing alt attributes, form labels, heading order, focus styles, color contrast — are well-documented, have clear before/after fixes, and don’t require specialized accessibility expertise to implement. A developer who spends a day or two reading the WCAG 2.2 success criteria and working through the issues on one page can usually generalize that knowledge across the rest of the site.

Realistically, a small-to-medium site with a competent in-house developer might spend 20–60 hours of developer time on an initial remediation pass. At typical agency or contractor rates, that’s roughly $2,000–$8,000 worth of development effort. For internal teams, it’s a cost measured in time rather than spend.

The limitation of the DIY approach is that it addresses what your team can see. Automated tools catch around 30–40% of actual WCAG issues — the rest require human judgment, and some require testing with actual assistive technology. Internal developers rarely have that context, so the DIY pass tends to leave a meaningful number of barriers in place.

Mid-range: an external audit

Hiring an external team to audit your site gives you an independent, systematic view of what’s broken — including things automation and internal review miss.

Audit costs vary based on the size and complexity of the site, the depth of coverage (automated-only vs. manual vs. testing with actual assistive-technology users), and what you need at the end (a spreadsheet of issues vs. a detailed report suitable for a regulatory response or procurement submission).

As rough ballpark figures:

Automated audit of a small site (5–20 pages): $500–$2,000
Manual audit with keyboard and screen reader testing (10–50 pages): $3,000–$10,000
Comprehensive audit including testing by people with disabilities: $8,000–$25,000+
Enterprise audit for a large application or complex site: $25,000–$75,000+

These ranges are wide because the inputs vary widely. A five-page marketing site is not the same project as a 200-page e-commerce platform with a checkout flow, account management, and a product catalog.

The value of a proper audit isn’t just the list of issues — it’s the prioritization. Not every accessibility issue carries the same weight. A trained auditor will tell you which failures create genuine barriers for real users and which are low-impact, so your development team can fix the things that matter most first. That prioritization alone often saves more in development time than the audit cost.

Mid-to-high: remediation

After the audit comes the fixing. Remediation costs track closely with what the audit uncovered — and with how much of it you choose to address in one go.

Some organizations tackle everything at once. Others prioritize the highest-impact issues — critical barriers, legal hot spots, the most-visited pages — and work through the rest in subsequent sprints. Either approach is valid, but it’s worth knowing that a partial remediation, while cheaper upfront, may need revisiting if a complaint or legal action surfaces an issue you deferred.

For a typical mid-size site after an external audit, remediation tends to run:

Light remediation (fix critical issues, in-house team): $3,000–$10,000 in developer time
Moderate remediation (most issues, specialist contractor): $10,000–$40,000
Full remediation (large site, complex components, external team): $40,000–$150,000+

The biggest cost driver in remediation is usually custom components — carousels, date pickers, autocomplete fields, modal dialogs, and other JavaScript-heavy widgets that weren’t built with accessibility in mind. Native HTML elements are accessible by default; custom widgets built from <div> elements need significant work to behave correctly for screen readers and keyboard users. If your site has many of these, budget accordingly.

Ongoing: keeping it accessible

Getting accessible once is the starting point. Staying accessible is the ongoing investment.

Every new feature, every content update, every third-party embed is an opportunity to introduce a new barrier. Without some ongoing process, accessibility gains erode over time — often faster than teams expect. The cost of ongoing accessibility depends heavily on how it’s built into your workflow.

At the lighter end: integrating an automated scanner into your CI/CD pipeline and running monthly manual spot-checks might cost $500–$2,000 per year in tooling and time. This won’t catch everything, but it prevents the obvious regressions.

At a more robust level: a combination of continuous scanning software, quarterly manual audits, and periodic testing by assistive technology users might run $5,000–$20,000 per year for a typical business, depending on site size and audit depth.

Our accessibility scanning software and monitoring platform Agora are built specifically to keep ongoing costs manageable — automating the repeatable checks so expert time is reserved for the judgment calls that actually require it.

The cost of not doing it

It would be incomplete to talk about accessibility costs without mentioning the costs of inaction. A demand letter from an ADA plaintiff typically arrives with a settlement demand. Even cases that settle quickly and favorably tend to cost $20,000–$75,000 in legal fees, plaintiff costs, and required remediation — remediation that now happens under time pressure and legal scrutiny rather than on your own terms.

European EAA enforcement is newer but carries regulatory fines that scale with company size. And the reputational cost of being publicly identified as inaccessible — particularly if it happens through a lawsuit or a disability advocate’s published test — is harder to quantify but real.

None of this is to say the cost of inaccessibility always exceeds the cost of fixing things. For a very small site with almost no traffic, the calculus may look different. But for any business with meaningful online revenue or a significant user base, the expected cost of inaction almost always exceeds the cost of doing the work proactively.

What a reasonable starting plan looks like

If you’re starting from scratch and want to make progress without committing to a large upfront spend, here’s a sensible sequence:

Run the free scan and fix everything it surfaces. This costs nothing except developer time and gets you past the most obvious failures.
Do a keyboard-only walkthrough of your most critical user journeys — signup, checkout, contact, login. Fix anything that breaks.
Commission a targeted manual audit of your highest-traffic pages and your most critical flows. Budget $2,000–$8,000 for this, depending on scope.
Remediate the critical and serious issues first, in order of impact.
Set up a lightweight ongoing process — a scanner in your deployment pipeline and a recurring review cycle.

This approach gets the most important ground covered quickly, keeps initial spend manageable, and leaves a clear path to deeper compliance over time. If you’d like help scoping what makes sense for your specific situation, talk to one of our consultants — the conversation is free, and a well-scoped plan usually pays for itself in avoided rework.