Income tax will form more than one third of Ireland’s tax take in 2009. Yet, if the wild claims about who does or doesn’t pay what are anything to go by, the nature of Ireland’s income tax regime is poorly understood. This post includes a little quiz to see whether some key aspects of Ireland system are understood and where readers think the system should be. It also outlines some startling findings in relation to income tax, but don’t forget to answer the questions before you read the findings!