Under Section 1031 of the United States Internal Revenue Code (26 U.S.C. § 1031), a taxpayer may defer recognition of capital gains and related federal income tax liability on the exchange of certain types of property, a process known as a 1031 exchange. In 1979, this treatment was expanded by the courts to include non-simultaneous sale and purchase of real estate, a process sometimes called a Starker exchange.
Before 2018, a wide array of property was covered by the deferment provisions of Section 1031. The Tax Cuts and Jobs Act of 2017 repealed Section 1031 for all types of property except real property.