In an upside down stock market, panic selling occurs all too frequently. Today's market gyrations likely triggered even more selling. For some, the unintended consequence of panic selling is a larger tax bill. If you already sold stock or are contemplating selling, then The SmartMoney.com Capital-Gains Guide offers worksheets to help you calculate capital gains and a primer on rates for a variety of long-term sales, including investment securities, investment real estate, homes, and small business stock.

To learn more about the SmartMoney website, including tips for navigating the site, or to post your review and comments, visit the SmartMoney Moneysmartz Profile.