I was talking to a co-worker of mine and the topic of taxes came up. He was telling me that he always ends up owing $10K. My wife and I got back $6K. We make a pretty decent living, well into the mid-$100K range. I know for a fact the guy makes more than I do. I would probably say in the $200K - $220K range. Why would somebody who makes that kind of "bank" have to owe $10K???