Which amendment prohibits the imposition of a poll tax in federal elections?

The 24th Amendment to the United States Constitution specifically prohibits the imposition of a poll tax in federal elections. Ratified in 1964, this amendment was an important step in the civil rights movement, addressing the financial barriers that were historically used to disenfranchise voters, particularly African Americans and poor individuals. By eliminating the poll tax, the amendment aimed to ensure that voting rights were accessible to all citizens, regardless of their economic status.

In the broader context, other amendments listed address different voting-related issues, but none directly relate to the prohibition of poll taxes in federal elections. The 23rd Amendment grants residents of Washington, D.C., the right to vote in presidential elections, the 26th Amendment lowers the voting age to 18, and the 19th Amendment guarantees women the right to vote. Each of these amendments reflects crucial developments in voting rights but does not pertain to the specific concern of poll taxes in federal elections.