How were poll taxes used to keep black men from voting after the civil war?

After the Civil War, poll taxes were implemented in several Southern states as a means to disenfranchise Black voters and maintain white supremacy. These taxes required individuals to pay a fee before being allowed to vote, which disproportionately affected Black men and poor white citizens who could not afford to pay. Additionally, poll taxes were often coupled with literacy tests and other discriminatory practices, further obstructing the voting rights of Black individuals. Overall, poll taxes served as a legal barrier, systematically suppressing Black political participation.