A tax deferred exchange that allows buyer and seller to effectively exchange properties without paying the tax liability on the sale of the first asset. It can be swapping of one business for another, or an estate investment property for another property. For this details of this deal, an 8824 form must be submitted to the IRS. Also known as a Section 1031 exchange, there are some factors to consider to avoid the tax liability upon selling the first asset: it should be an investment property, not a residence; purchased asset must be similar to the sold asset; and sale proceeds must be used in purchasing the other within 180 days from the sale of the first asset, although it is advised to identify the property to be bought within 45 days.