Guides

Section 121 Exclusion Explained

Section 121 of the Internal Revenue Code generally allows a homeowner to exclude up to two hundred fifty thousand dollars of capital gain from the sale of a primary residence if filing single, or up to five hundred thousand dollars if married filing jointly. To qualify, the taxpayer generally must have owned the home and used it as their principal residence for at least two of the five years immediately before the sale, and those two years generally do not need to be consecutive, which can help San Diego, CA owners who moved out temporarily and later moved back in before selling. The exclusion generally can only be used once every two years, so an owner who recently excluded gain on a different home sale generally needs to wait before claiming it again. A more technical layer applies when a home was used for both personal and rental purposes during the ownership period. Since 2009, the Internal Revenue Service generally requires an allocation between qualifying use, meaning periods the home served as the primary residence, and nonqualified use, meaning periods after 2008 when the home was rented out or otherwise not used as a primary residence, before the property was ultimately converted back and sold as a primary residence. Gain allocated to nonqualified use periods is generally not eligible for the Section 121 exclusion, and any depreciation claimed during a rental period is generally recaptured separately regardless of how the remaining gain is treated. For San Diego, CA owners of properties with a genuine mixed-use history, such as a duplex where the owner lived in one unit and rented the other, or a single family home converted to a rental for a period before being sold, the Internal Revenue Service has generally permitted combining the Section 121 exclusion on the residence portion with a Section 1031 exchange on the rental portion under guidance issued in Revenue Procedure 2005-14. This combination generally requires careful allocation of the sale price, gain, and any exchange proceeds between the two portions of the property, and it generally works best when the rental and residence use is clearly documented and separately identifiable. Because the interaction between Section 121 and Section 1031 depends heavily on the specific facts of how a property was used, San Diego, CA owners with any period of mixed use should generally get a tax advisor's read on the allocation before listing the property, rather than assuming the full sale will qualify for either provision alone. Educational content only. This is not tax, legal, or investment advice, and homeowners should confirm their specific exclusion eligibility and any 1031 combination with a qualified tax professional.