Which amendment abolished poll taxes in federal elections?

The 24th Amendment, ratified in 1964, specifically abolished poll taxes in federal elections. Poll taxes were fees that individuals were required to pay in order to vote, which effectively disenfranchised many low-income citizens, particularly African Americans and poor whites in the South. The amendment was a significant step in the civil rights movement, aimed at ensuring that the right to vote could not be denied based on the inability to pay a tax.

In contrast, the 15th Amendment, ratified in 1870, prohibits the denial of the right to vote based on race, color, or previous condition of servitude. The 19th Amendment, ratified in 1920, grants women the right to vote, and the 26th Amendment, ratified in 1971, lowers the voting age to 18. While all these amendments play important roles in expanding voting rights, it is the 24th Amendment that directly addresses the issue of poll taxes in federal elections.