I assume you're referring to those that sparked the American Revolution. The taxes that ended up being the last straw with the colonists are known as the Intolerable or Coercive Acts. Prior to these laws, the English (and Americans) were involved in the French and Indian War, part of the larger Seven Years War between France and Great Britain. American Colonists were involved in the war, but treated as inferiors to the British Regulars. This stirred up some contempt with the Americans, but really wasn't significant without what followed.
At the end of the war, Great Britain was largely in debt from the war, and needed an extra source of income, so the British passed a series of what became known as the Intolerable Acts which, among other things, gave British troops the right to quarter in any privately-owned building and the right to suppress any protests with deadly force following the Boston Tea Party. The colonists objected to taxes being imposed upon them without any representatives in the Parliament, which led to the formation of the Continental Congress, which eventually led to the American Revolutionary War. I'd recommend reading 1776 by David McCullough, it's a great book.