Why did the American colonist object to paying taxes imposed by parliament?

American colonists objected to paying taxes imposed by Parliament primarily because they believed it violated their rights as English subjects. They argued that since they had no representation in Parliament, it was unjust for them to be taxed without their consent, encapsulated in the slogan "no taxation without representation." The taxes were seen as a means for Britain to exert control and maintain its authority over the colonies, which fueled resentment and a desire for independence. This opposition contributed to escalating tensions that ultimately led to the American Revolution.