Even with a bracket system, your effective tax rate will asymptotically approach the percentage of the highest bracket as you make more and more money. Given "c

Even with a bracket system, your effective tax rate will asymptotically approach the percentage of the highest bracket as you make more and more money. Given "centre," I assume this person doesn't live in the US, and many places have higher tax brackets than the US does, including some well in excess of 50%. Also they may not have a federal vs. local distinction, etc., etc.