The basis in a property acquired in a qualified Section 1031 Exchange is reduced by deferred gain and becomes the substitute basis. For example, if the market value of property given up is $200,000, and the basis in that property was $75,000, then realized gain equals $125,000. Assume the market value of property acquired through a tax deferred exchange is $350,000, then subtracting the unrecognized gain of $125,000 equals the substitute basis of $225,000. The effect of this adjustment to basis is to build in the deferred $125,000 gain into the property acquired. If the new property were sold the next day for $350,000, a $125,000 gain would be reported.
