The question is impossible to answer. Is that net income that "Joe" is referring to? How does Joe plan on filing his taxes? Is he an S Corp.? Does his income from the business get added to his personal income? Is he married? Does his wife work? Do they file jointly? Do they have children? Own a home?

There are so many factors that would impact his taxable income that the question is next to impossible to answer.

By the way, I saw on the news that there is an ACTUAL Joe the Plumber in Texas. That's the name of his company and his website is joetheplumber.com.

http://elections.foxnews.com/2008/10/16/texas-joe-plumber-gains-reflective-fame/