In the context of real estate investment, if you buy a property and then sell after having possession of it for less than three years and make a profit, you will make a short term capital gain (STCG). If, however, you sell the property for a profit after having possession of it for more than three years, you will make what is known as a long term capital gain (LTCG). You can save on LTCG by investing the money you received from the sale in some other property. However, you cannot save on STCG under any circumstances.