Definition and meaning of poll tax: A poll tax is a monetary fee or a tax levied on individuals in order to be eligible to vote in an election. This practice has been in existence since the 19th century and was disproportionately used to disenfranchise African Americans from voting in the United States. It was only outlawed in 1964, when the 24th amendment to the Constitution was ratified. Poll taxes are seen as a discriminatory measure, as it prevents many low-income citizens from being able to exercise their right to vote. This limits the voices of those who are most likely to be in favor of more progressive policies. As such, the practice of poll taxes is seen as a severe barrier to democracy and should be abolished in order to ensure free and fair elections.