Picture this: For the past few years you've received your tax return and have had a small but nice refund. Now imagine your surprise, when next year, you are required to send in a fairly big check to settle your tax bill. Believe it or not, this message is almost as hard to deliver to a taxpayer as it is to hear it. Here are some situations to watch for that can increase your tax liability:

Should you incorporate your business? That is the question. Find out why it may be a good idea.