1031 Exchanges for Rental Property: Rules, Deadlines, and the 5 Traps

A 1031 exchange lets you sell an investment property and roll the gain into a new one without paying capital gains tax — if you follow the rules exactly. Miss a deadline by a day and the IRS treats the whole thing as a taxable sale.

Here's how 1031s actually work in 2026, and the 5 traps that blow them up.

The core idea

Section 1031 of the tax code lets you defer capital gains tax (federal, state, and depreciation recapture) when you exchange one investment property for another "like-kind" property. "Like-kind" is broad — almost any US real estate held for investment qualifies for almost any other US real estate held for investment. A single-family rental can exchange into an apartment building, raw land, or a self-storage facility.

The two deadlines that cannot be missed

1. 45 days to identify replacement property in writing
2. 180 days to close on it (or your tax-return due date, whichever is earlier)

Both clocks start the day your original property closes. They run on calendar days — weekends and holidays count. There are no extensions.

The 3 identification rules (pick one)

• 3-Property Rule — identify up to 3 properties of any value
• 200% Rule — identify any number, as long as total value ≤ 200% of what you sold
• 95% Rule — identify any number, but you must close on ≥95% of the total value identified

99% of investors use the 3-Property Rule.

The qualified intermediary requirement

You cannot touch the sale proceeds. A Qualified Intermediary (QI) must hold them and transfer them to close the replacement. If the funds hit your bank account for even a day, the exchange is dead. Engage the QI before the sale closes — typical fee is $800–$1,500.

Equal-or-up rules to defer 100% of the gain

1. Replacement property value ≥ sold property value
2. Replacement debt ≥ sold debt (or add cash to make up the difference)
3. All net proceeds reinvested

Any shortfall is called "boot" and is taxable. Common boot: paying down debt in the exchange, or buying down to a smaller property.

The 5 traps that blow up exchanges

1. No QI in place at closing. Game over before it starts.
2. Vague identification. Address, APN, and percentage interest must be specific and in writing by day 45.
3. Buying down. Trading $500K for $400K creates $100K of taxable boot.
4. Taking debt relief without replacing it. Owing less on the new loan than the old one = boot.
5. Vesting changes. The buyer and seller entity name must match on both sides of the exchange.

Reverse and improvement exchanges

Two variants worth knowing exist:

• Reverse exchange — buy the replacement before selling the relinquished property (QI parks one side). Useful in hot markets.
• Improvement (build-to-suit) exchange — use exchange proceeds to fund construction on the replacement property. Must be complete within 180 days.

Both are more expensive ($5K–$15K) and complex — only worth it on larger deals.

When a 1031 is worth it

• Combined federal + state + recapture tax would exceed $25K on the sale
• You've already identified a specific replacement (or have one in escrow)
• You plan to hold the replacement long-term (or roll into the next one)

How Havyn helps

Havyn tracks each property's adjusted basis, accumulated depreciation, and estimated equity — so the moment you start considering a sale, you know exactly what gain you'd be deferring. See the features page.