Why did the tea act of 1773 anger colonists?

While the Tea Act of 1773 did not add any new taxes on the activities of colonists, it instead cracked down on illegal smuggling of tea and forced colonists to buy British tea at a higher price. The future implications of further taxes angered merchants and led them to react aggressively by disallowing British tea to land on American soil, which escalated to the Boston Tea Party later that year.