3.3.5 Help (Level AAA): WCAG explained. Axevoo

In plain English

Labels tell people what a field is; this AAA rule goes a step further and asks for help right where it is needed when people fill in forms. A short hint explaining a confusing field, a “what’s this?” tooltip, an example of the expected format, anything that unblocks someone without making them leave the form to hunt for answers.

Who this is for

People with cognitive and learning differences, who benefit most from in-place guidance.
Everyone facing an unfamiliar or oddly-formatted field.

How to check and fix it yourself

Walk through your checkout and account forms. For any field people might hesitate on, add an inline hint, an example, or a small help tooltip.

"Tax ID" field with a "what's this?" hint and an example format.  ✓
"Discount code" with a note on where to find it.                   ✓
A cryptic field with just a bare label.                            ✗ add help

Where we can help

We review your forms for fields that leave people guessing and suggest the inline help that would unblock them. Better form guidance directly lifts checkout completion, a conversion win as much as an access one.

Frequently asked questions

What does help require?+

Success Criterion 3.3.5 (Level AAA) says context-sensitive help is available for forms that ask people to enter information, so they can get guidance on what a field needs without leaving the task.

How is this different from 3.3.7 Redundant Entry or 3.3.2 Labels?+

3.3.2 (Level A) requires labels and instructions on fields. 3.3.5 (AAA) goes further: help that explains a field in more depth is available right where it's needed, for example a hint explaining what a 'VAT number' is or why a field is required.

What does context-sensitive help look like on a store?+

Inline hints under tricky fields, a 'what's this?' tooltip next to a confusing field (like a tax ID or a discount code format), example values shown in the field, and clear guidance on formats. All aimed at unblocking someone mid-form.

Help