Reverse 1031 exchanges were officially recognized with Revenue Procedure 2000-37, providing a safe harbor for the Exchange Accommodator Titleholder (EAT) to park either the relinquished (old) or replacement property for up to 180 calendar days. Prior to this milestone, 1031 exchanges were either forward or simultaneous exchanges where the old property is closed before the new property is acquired. Simultaneous 1031 exchanges are those where the old and new properties are exchanged at one closing. Reverses provided flexibility to acquire the new property before selling the old.


