Contrary to popular belief, WCAG 2.0 does not forbid use of tables for layout. It indirectly accepts it by setting rules on what should not be done when using tables for layout, e.g. using th
elements (which generally indicate tabular data), e.g. in F46: Failure of Success Criterion 1.3.1 due to using th elements, caption elements, or non-empty summary attributes in layout tables.
So using a layout table does not violate WCAG 2.0, as long as the table does not contain markup that incorrectly suggests tabular data. And naturally, authors don’t normally use th
or caption
elements in layout tables, since they are not useful in them.
On the other hand, a fill-out form may well be regarded as tabular data, e.g. containing labels in one column, controls (fields) in another. So it would not violate WCAG 2.0, even if you used caption
(for a form caption) or th
(for the cells containing labels, as they could well be considered row headers).