The `tfoot` element in HTML is used to group footer content in a table. It typically contains summary information or totals related to the data presented in the table. This helps improve the organization and readability of the table, making it easier for users to understand the overall data. The `tfoot` section is usually placed after the `thead` (table header) and before the `tbody` (table body) in the HTML structure. This placement ensures that the footer is rendered correctly, allowing browsers to display it at the bottom of the table, regardless of the number of rows in the body.