1031 Exchange Calculator — Estimate Your Tax Deferral Savings

Enter your property details to see exactly how much capital gains tax a like-kind exchange defers — and how much additional purchasing power you keep in play.

1031 Exchange Tax Deferral Calculator

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Relinquished Property (the one you're selling)
Tax Rates
Replacement Property
Total tax without 1031 exchange
Tax deferred through exchange
Additional purchasing power retained
Total capital gain recognized

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What Is a 1031 Exchange?

A 1031 exchange — named after Section 1031 of the Internal Revenue Code — lets real estate investors defer capital gains taxes when they sell an investment property, as long as they roll the proceeds into a qualifying "like-kind" replacement property. The tax isn't forgiven; it's deferred until the replacement property is eventually sold outside of another exchange.

For high-net-worth investors and commercial real estate operators, the 1031 is one of the most powerful wealth-building tools in the tax code. Deferring a $400,000 tax bill means keeping $400,000 working in real estate instead of sending it to the IRS — compounding over years or decades.

The exchange must be handled through a Qualified Intermediary (QI) — a neutral third party who holds the proceeds from the sale and transfers them to the replacement property closing. You cannot take possession of the funds at any point, or the exchange is disqualified.

Like-kind is broadly defined for real estate: any investment or business-use real property qualifies, regardless of property type. You can swap a multifamily building for industrial space, raw land for a retail strip center, or a single office building for a portfolio of smaller assets.

Two types of gain are deferred: ordinary capital gains (taxed at 0%, 15%, or 20% depending on income) and depreciation recapture (taxed at up to 25%). If you've held the property for years and taken substantial depreciation deductions, recapture can be a significant part of your total tax bill — all of which the 1031 defers.

Key 1031 Exchange Rules

Miss any of these and the exchange fails — triggering immediate tax on the full gain.

45-Day Identification You must identify replacement property candidates in writing within 45 calendar days of closing on the relinquished property. No extensions. No exceptions.
180-Day Closing You must close on the replacement property within 180 calendar days of the relinquished sale (or your tax filing deadline, whichever is earlier). Both clocks run simultaneously.
Equal or Greater Value To defer 100% of gain, the replacement property value must equal or exceed the relinquished property's sale price, and all equity must be reinvested. Partial exchanges are allowed but trigger tax on the "boot" received.
Like-Kind Property Both properties must be held for investment or business use — not personal use. For real estate, like-kind is broadly interpreted: nearly any US investment property qualifies.
Qualified Intermediary A QI must facilitate the exchange. Proceeds from the sale go directly to the QI — never to you. Using a QI who is a disqualified person (family member, agent) voids the exchange.
3-Property Rule You can identify up to 3 replacement properties without restriction. Identifying more requires you to intend to acquire at least 95% of the combined value — a high bar most investors avoid.

Common 1031 Exchange Mistakes

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Missing the 45-day deadline — The identification window is hard. Many investors underestimate how fast 45 days passes while negotiating replacement properties. Start identifying candidates before you close on the sale.

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Taking constructive receipt of funds — If exchange proceeds hit your bank account before the QI receives them, the exchange is immediately disqualified. Ensure your closing instructions route funds directly to the QI.

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Trading down in value — Exchanging into a lower-priced property triggers tax on the "boot" — the difference in price. If you need to access some equity, partial exchanges can work, but tax consequences must be modeled in advance.

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Forgetting mortgage boot — If the replacement property carries less debt than the relinquished property, the difference counts as boot — taxable even if no cash changes hands. Balance your debt levels or offset with cash equity.

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Ignoring depreciation recapture — Many investors focus on capital gains rate but overlook recapture tax at 25% on prior depreciation deductions. Run the full number before deciding whether to exchange.

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Using an inexperienced QI — QIs are not federally regulated. Choosing a fly-by-night intermediary puts your exchange funds at risk. Use a QI with a long track record and fidelity bond coverage.

Analyze Your Replacement Property

Found a candidate? Deal Scout runs instant cap rate, NOI, DSCR, comps, and AI risk analysis on any commercial address — so you know if the exchange pencils before you identify it.

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