Multiple column layouts in forms create confusion and increase cognitive load for all users. Research consistently shows that people often skip fields, enter information incorrectly, or abandon forms entirely when confronted with complex multi-column designs.^[1]

For users with disabilities, the challenges multiply significantly. Screen reader users may navigate in unexpected patterns, while people with cognitive impairments might struggle to follow the intended path through scattered form elements. Single-column layouts create a clear, predictable path that guides all users smoothly through the form completion process.

Reserve side-by-side fields only for logically related short inputs that users expect to appear together, such as City, State, and Zip code. This familiar grouping actually reduces cognitive load rather than increasing it. For everything else, maintain a vertical flow to support successful form completion.