Read the 24th Amendment.The right of citizens of the United States to vote in any primary or other election for President or Vice President, for electors for President or Vice President, or for Senator or Representative in Congress, shall not be denied or abridged by the United States or any State by reason of failure to pay any poll tax or other tax.–24th Amendment

The amendment says that citizens may not be denied the right to vote in elections for President, Congress, or their electors because they failed to pay a poll tax or other tax. These are federal elections, so the amendment outlawed poll taxes in federal elections. It does not outlaw all taxes or prohibit poll taxes in every state election.

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