It can through what is known as a reverse exchange. However, because the IRS will not allow you to exchange into property you already own, you'll never be able to buy the replacement proeprty, then sell your old relinquished property and call it a backwards exchange. The IRS has however, set forth a Revenue Procedure (2000-37) that stipulates the correct processs to accomplish a successful reverse exchange. They can be extremely effective, depending upon your circumstances. But, make sure you understand that they are more complicated, and therefore much more expensive than a regular forward exchange.