1. How a 1031 Exchange Works

Under IRC Section 1031, gain on the sale of investment or business real property isn't recognized for tax purposes if the proceeds are reinvested into a similar property, structured properly through a qualified intermediary. The tax isn't eliminated — it's deferred, and can potentially be deferred indefinitely through successive exchanges, with full elimination possible for heirs through a stepped-up basis at death.

2. The 45-Day and 180-Day Rules

From the date the original property closes, the investor has 45 calendar days to formally identify potential replacement properties in writing, and 180 calendar days total to close on the replacement. These deadlines are strict — there's essentially no flexibility for missing them, even by a day.

3. What Counts as "Like-Kind"

For real estate, "like-kind" is interpreted broadly — virtually any real property held for investment or business use can be exchanged for any other, regardless of property type (an apartment building for raw land, for example). Personal-use property, like a primary residence, does not qualify.

4. Worked Example

An investor sells a rental property for $800,000 with $300,000 in capital gain. Sold outright, this could trigger roughly $60,000-$90,000+ in combined federal and state capital gains tax depending on bracket and depreciation recapture. Through a properly executed 1031 exchange into a $900,000 replacement property, that tax is deferred entirely, preserving the full $300,000 in equity to work toward the new purchase.

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5. 1031 Exchange vs. Selling Outright

6. The Role of a Qualified Intermediary

The investor cannot take direct receipt of the sale proceeds at any point in the process — doing so disqualifies the exchange entirely. A qualified intermediary holds the funds between the sale and the purchase and facilitates the paperwork required by the IRS.

7. Step-by-Step Checklist

• Engage a qualified intermediary before closing on the sale of the relinquished property
• Close on the original property sale
• Identify replacement property in writing within 45 days
• Close on the replacement property within 180 days
• Ensure replacement property value and debt meet or exceed the relinquished property's to fully defer gain
• File Form 8824 with the tax return for the exchange year

8. Most Common Mistakes

Receiving the sale proceeds directly, even briefly. This immediately disqualifies the exchange — the intermediary must be engaged before closing.

Missing the 45-day identification deadline. There's no extension for this, regardless of circumstances.

Buying a smaller or lower-debt replacement property. Doing so creates "boot," which is partially taxable, undermining the full deferral benefit.

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9. FAQ

Can I exchange into a property in another state? Yes — 1031 exchanges aren't limited geographically within the U.S.

How many replacement properties can I identify? Up to three, regardless of value, under the standard identification rule, with alternative rules available for identifying more.

Does the tax go away eventually, or just get deferred forever? It can be deferred indefinitely through successive exchanges, and if the property is held until death, heirs typically receive a stepped-up basis that can eliminate the deferred gain entirely.