I have been buying realestates and have held the property under an S-corp or LLC. I am planning to sell and then do a 1031 exchange. Can LLC/S-corp do this? I have done it in the past as an individual person, but not sure if the IRS allows a corporation/LLC investment firm to keep on deferring the gains.

Yes, as long as ownership stays the same. ABC corp sells, ABC corp needs to purchase. Dissolving entities or changing ownership before selling or after purchasing should be looked at by a tax adviser. A single member llc is considered a "disregarded entity" by the IRS and is the exception. John Smith single member llc can sell and John Smith the individual can purchase.

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