Why were taxes such a problem with American colonists?

Taxes were a significant issue for American colonists primarily because they were imposed by the British Parliament without their consent, violating the principle of "no taxation without representation." Colonists felt they had no voice in the decisions affecting their lives and finances, leading to widespread resentment. The Stamp Act and Townshend Acts, among others, sparked protests and boycotts, as colonists believed these taxes were unfair and burdensome. This growing discontent ultimately fueled the desire for independence and revolution.