A 1031 exchange is often referred to as a Starker exchange.
Exchanges Allow You to Delay Capital Gains Taxes
Capital gains taxes are deferred if all of the exchange funds are used to purchase like-kind investment property.
The deferment is like getting an interest-free loan on the tax dollars you would have owed for a cash sale. More equity is retained, and that helps you move into properties of higher value each time you perform a 1031 exchange.
What's Eligible?
A 1031 exchange is possible when you sell real estate held for investment purposes.
It cannot be used for the sale of your personal residence.
Like Kind Properties
Exchanged properties must be like kind. For a real estate exchange this means real-property for real-property, but not necessarily land for land or a rental house for another rental house. Take a look at the IRS rules for specific information about what types of properties qualify as like kind.
You can exchange a single property for multiple properties, or purchase one property from the proceeds of several. Proceeds not used to purchase new investment property are taxed as a cash sale.