Short answer: a 1031 exchange (from IRC Section 1031) lets you sell investment or business real estate and defer the capital-gains tax by reinvesting the proceeds into “like-kind” real estate. It’s one of the most powerful tax-deferral tools in real estate — but it runs on strict deadlines (45 and 180 days) and precise rules, so it must be set up correctly before you sell.
How does a 1031 exchange work?
When you sell appreciated investment real estate, you’d normally owe capital-gains tax (plus depreciation recapture). A 1031 exchange lets you roll the entire proceeds into a new “like-kind” property and defer that tax. “Like-kind” is broad for real estate — you can exchange, say, a rental building for raw land, an apartment, or a fractional interest — as long as both are real property held for investment or business use. Your personal residence doesn’t qualify.
What are the 1031 deadlines?
- Day 0 — you sell (relinquish) your property; the proceeds go to a qualified intermediary, not to you.
- Within 45 days — you must formally identify potential replacement property in writing.
- Within 180 days — you must close on the replacement property.
- To fully defer — reinvest all the proceeds and replace the debt; any cash or debt relief you keep (“boot”) is taxable.
What are the requirements and pitfalls?
- Qualified intermediary — a third party must hold the proceeds; you cannot receive them.
- Like-kind real property held for investment or business — not a primary home or property held to flip.
- Equal or greater value and debt — to fully defer, don’t “trade down” or pocket cash.
- Same taxpayer — the entity that sold generally must be the one that buys.
- The clock is unforgiving — 45 and 180 days include weekends and holidays.
What if you can’t find a replacement in time?
This is where passive vehicles help. A Delaware Statutory Trust (DST) is pre-packaged institutional real estate whose fractional interests qualify as like-kind replacement property — useful when the 45-day clock is running and you can’t close on a whole building in time. A 721/UPREIT structure can extend the strategy further.
Does a 1031 ever eliminate the tax?
Not by itself — it defers. But investors often “swap till they drop”: exchanging repeatedly to keep deferring, then passing the property to heirs, who may receive a step-up in basis at death that effectively erases the deferred gain. Whether that fits your estate plan is a question for your CPA and estate attorney.
Frequently asked questions
It’s a tax rule that lets you sell investment real estate and defer the capital-gains tax by reinvesting the proceeds into another like-kind property. You must use a qualified intermediary, identify replacements within 45 days, and close within 180 days.
If the building is held for investment or business use, it can generally qualify for a 1031 exchange into other like-kind real estate — deferring the gain. The details (entity, debt, and timing) matter, so structure it with a qualified intermediary and your tax advisors before selling.
The exchange fails and the sale becomes a taxable event. The deadlines are strict and include weekends and holidays, which is why many investors line up replacement options — sometimes a DST — before the clock starts.
Sources
Founder & Financial Planner · Investment Adviser Representative · Series 63 & 65
Ian McGinnis is the founder of Dental Wealth Partners and a fee-only financial planner dedicated to dentists. As an investment adviser representative (Series 63 and 65), he built the firm to give dentists coordinated, fiduciary advice across their practice, taxes, investments, retirement plans, and long-term goals — the whole picture in one strategy. A graduate of Belhaven University, Ian previously worked at Davis Private Wealth, MML Investors Services, and Northwestern Mutual, and is based in the Jackson, Mississippi area. He is the author of The Wealthy Dentist and hosts the Smiles & Cents podcast.
Keep reading
- DST 1031 exchanges for dentists: passive real estate, explainedA Delaware Statutory Trust (DST) lets a dentist complete a 1031 exchange into passive, institutional real estate — no management, but illiquid and accredited-only.
- 721 exchanges and UPREITs for dentists, explainedA 721 exchange lets a dentist roll real estate into a REIT operating partnership tax-deferred, trading control for diversification and eventual liquidity.
- How should a dentist invest in real estate?Dentists can invest in real estate actively (direct ownership) or passively (syndications, DSTs, REITs). How to weigh each — and avoid over-concentration.