You can set severity ratings for accessibility issues in seconds by applying a prioritization formula that weighs two factors: how much the issue affects users and how much compliance risk it creates. Once you have a formula, rating each issue takes moments instead of hours of deliberation.
Most teams spend too long debating which issues matter most. A structured rating system removes the guesswork and gives your developers a clear order of operations.
| Factor | What It Tells You |
|---|---|
| User Impact | How severely the issue affects people with disabilities trying to complete a task |
| Frequency | How often the issue appears across pages or screens |
| WCAG Conformance Level | Whether the issue violates a Level A, AA, or AAA criterion |
| Legal Exposure | Whether the issue type is commonly cited in ADA compliance demand letters |
| Remediation Effort | How much development time is needed to fix the issue |
Why Severity Ratings Matter for Accessibility Remediation
An accessibility audit identifies issues. Sometimes dozens. Sometimes hundreds. Without severity ratings, your development team has no way to know what to fix first.
Severity ratings turn a flat list of issues into a ranked action plan. Critical issues that block screen reader users from completing core tasks get addressed before minor color contrast inconsistencies on a footer link.
This is where prioritization directly affects both your WCAG 2.1 AA conformance timeline and your ADA compliance risk. Fixing high-severity issues first means the most impactful accessibility improvements happen early in the remediation process.
What Goes Into a Good Prioritization Formula?
A good formula is repeatable. Anyone on your team should be able to apply it to any issue and arrive at the same rating, give or take. Here is a simple model.
Score each issue on a 1 to 3 scale across four dimensions:
User Impact (1 = minor inconvenience, 2 = significant difficulty, 3 = complete blocker)
Frequency (1 = appears on one page, 2 = appears on several pages, 3 = appears site-wide)
WCAG Level (1 = AAA criterion, 2 = AA criterion, 3 = Level A criterion)
Legal Risk (1 = rarely cited in lawsuits, 2 = sometimes cited, 3 = frequently cited in ADA demand letters)
Add the four scores. A total of 10 to 12 is critical. A score of 7 to 9 is high. A score of 4 to 6 is moderate. Anything below 4 is low.
That is the entire formula. Once you internalize it, rating a single issue takes seconds.
How Do You Apply This to a Real Audit Report?
Say your audit report identifies a missing form label on the main contact form. Screen readers cannot announce what the input field is for. Users who rely on assistive technology cannot complete the form at all.
Score it: User Impact = 3 (complete blocker). Frequency = 2 (contact form appears on a few pages). WCAG Level = 3 (Level A criterion, 1.3.1 Info and Relationships). Legal Risk = 3 (missing form labels are among the most commonly cited issues in ADA lawsuits). Total = 11. That is critical severity.
Now take a decorative image that has redundant alt text repeating the adjacent heading. Score it: User Impact = 1. Frequency = 2. WCAG Level = 2. Legal Risk = 1. Total = 6. Moderate. Fix it, but not before the form label.
This kind of scoring takes 10 to 15 seconds per issue once you have done it a few times.
Common Severity Rating Mistakes
The biggest mistake is rating everything as high priority. When everything is urgent, nothing is. Development teams lose direction and remediation stalls.
Another mistake is ignoring frequency. An issue that appears on every page of your site is more urgent than the same issue appearing once, even if the individual impact is identical. Frequency multiplies the real-world effect.
Some teams also skip legal risk entirely. If your organization has received an ADA demand letter or operates in an industry that sees frequent lawsuits (ecommerce, financial, healthcare, education), legal exposure should carry weight in your formula.
Can Software Help With Severity Ratings?
Yes. Some platforms include Risk Factor and User Impact prioritization formulas that assign severity ratings automatically based on your audit data. You upload your audit report, and the platform calculates priority scores for each issue.
This removes even the 10-second manual calculation. The platform maps every issue to its WCAG criterion, factors in how it affects users, and produces a ranked remediation queue.
For teams managing large remediation projects, automated prioritization saves hours of planning time and keeps developers focused on the right issues.
Do severity ratings change over time?
They can. If your site adds new pages or features, the frequency score for an existing issue might increase. Legal risk also shifts as lawsuit trends evolve. Reviewing severity ratings after each new audit cycle keeps your remediation plan current.
Should I rate issues differently for WCAG 2.2 AA versus 2.1 AA?
The formula works the same regardless of which WCAG version you are conforming to. The only difference is which criteria are in scope. If you are targeting WCAG 2.2 AA conformance, any new criteria introduced in 2.2 get scored using the same four dimensions.
What if my audit report already includes severity ratings?
Some audit providers include their own severity classifications. These are useful starting points. But they may not account for your specific legal exposure or how frequently an issue appears across your digital asset. Applying your own prioritization formula on top of the auditor’s ratings gives you a more tailored remediation order.
Severity ratings are the bridge between an audit report and real progress. A formula that takes seconds to apply keeps your team moving without second-guessing every fix.
Contact Kris Rivenburgh for guidance on accessibility prioritization and remediation planning.