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1031 Exchange Guide: Rules, Deadlines, and Replacement Options

By Jerry Baker

A 1031 exchange can defer taxable gain when you exchange real estate held for business or investment for other qualifying real estate. This guide explains the rules, deadlines, money, and choices involved in a typical exchange so you can plan before your sale closes. It also explains why meeting the tax rules does not, by itself, make a replacement property a good investment.

What is a 1031 exchange?

Section 1031 is a federal tax rule for qualifying exchanges of real property. Real property generally means land and buildings, along with certain related rights. The property you give up and the property you receive must meet the rule's business or investment-use requirements. Property held mainly for sale does not qualify. [1]

The key word is defer. A valid exchange can move gain into the replacement property rather than trigger tax on that gain now. It does not turn the gain into something that never happened. The new property's tax basis reflects the exchange. A later taxable sale can bring the deferred gain back into the calculation. [2]

I find it useful to separate two questions. First, can the transaction meet the exchange rules? Second, do the replacement investments make sense for you? A yes to the first question does not answer the second. You still have to live with the property, its risks, and the way it uses your money.

What property can qualify?

The federal rule focuses on how you hold the real estate. A rental house, an apartment building, a warehouse, or land held for investment may qualify. A home used only as your residence generally does not. Neither does real estate held mainly for resale, such as dealer inventory. A property with both personal and business use needs a closer review. [1]

For real estate, “like-kind” is broader than it sounds. You do not always have to trade an apartment building for another apartment building. Qualifying investment land may be exchanged for qualifying improved property. Grade or quality alone does not decide whether two properties are like-kind. However, U.S. real estate and real estate outside the United States are not like-kind to each other. [3]

Do not confuse an investment tied to real estate with an interest that qualifies as real property. Stock in a real estate company is not the same thing as owning its buildings. An LLC or partnership interest also needs its own review. Owning rental property through an entity does not make every interest exchangeable. Have your tax adviser confirm the ownership structure before you plan around it. [2]

Build your team before the sale closes

A typical delayed exchange uses a qualified intermediary, or QI. This is the independent party that helps carry out the exchange under a written agreement. Properly structured arrangements restrict your access to the sale proceeds while the exchange is in progress. A sale followed by a purchase is not automatically an exchange, even if both happen within 180 days. [4]

Get the QI involved before the transfer of the property you are selling. Do not assume that you can receive the proceeds in your own account and fix the paperwork afterward. Actual or constructive receipt of money can change the tax result. “Constructive receipt” can involve control over funds even when you have not spent them. [4]

Your CPA, attorney, QI, real estate broker, lender, and investment professional have different jobs. Ask who is responsible for the deadline calendar, identification letter, tax calculation, title review, and closing instructions. A group email is useful. A clear owner for each task is better.

I would also ask the QI about account controls, wire procedures, insurance, and what happens if a key employee is unavailable. Those questions do not prove that an exchange will work. They help you understand who will handle a large amount of money during a short and important period.

The 45-day and 180-day deadlines

In a standard delayed exchange, the identification period ends at midnight on the 45th day after you transfer the property you are giving up. The exchange period ends on the earlier of the 180th day after that transfer or the due date of your federal tax return for the transfer year, including extensions. Both periods start from the same transfer. [4]

You do not get 45 days to identify property and then another 180 days to buy it. Count calendar days, not business days. Ask the QI and CPA to confirm the actual dates for your exchange, especially when the sale occurs late in the year. A filing extension may matter if the tax return date would otherwise arrive before day 180. It does not create a period beyond the applicable 180-day limit. [3]

Ordinary deal problems do not create an extension. A lender running late or a seller changing plans can put the exchange at risk. Certain IRS disaster-relief rules can postpone deadlines for eligible exchanges, but the specific notice and eligibility rules control. Never assume that a general disaster declaration automatically covers your transaction. [5]

My planning preference is to work backward from closing, leaving room for errors and delays. A plan that needs every document to arrive at the last possible moment is a fragile plan.

Identify replacement property in writing

Identification is a formal step. The regulations call for a signed written document that clearly describes the replacement property and is sent to a permitted party before the identification period ends. Keeping a list in your desk, telling your broker what you like, or saving a property online is not the same thing. [4]

The three-property rule generally lets you identify up to three properties without a value limit. The 200% rule allows more properties when their combined fair market value is no more than 200% of the value of the property you gave up. If you exceed those limits, a narrow 95% rule may preserve qualifying treatment when you acquire enough of what you identified. It is a demanding rule, not a casual backup plan. [4]

Ask the QI to review the list before you sign it. Include properties you could realistically acquire and would be willing to own. A backup that cannot close, has no remaining capacity, or does not fit your goals offers little comfort.

A DST portfolio can require special care in describing and counting the underlying property interests. Do not assume that one subscription agreement always equals one identified property. Get the identification instructions and offering details reviewed together.

Understand equity, debt, and replacement value

Start with three figures: the exchange equity, the debt paid off at closing, and the new property's value. They are related, but they are not the same. Net cash after paying off a mortgage is not necessarily the full value you need to replace.

Here is a simplified example. You sell for $2 million and pay off an $800,000 mortgage. Ignoring expenses and other adjustments, you have $1.2 million of equity. Buying $1.2 million of replacement real estate with no new debt leaves a different tax picture from buying $2 million of replacement real estate.

Debt relief can be treated as money received in the exchange calculation. New liabilities, additional cash, or a combination may offset it under the applicable rules. You do not necessarily have to take out another $800,000 loan. You do have to understand how the value, cash, and liabilities fit together. [3]

For full-deferral planning, people often say to reinvest the proceeds and buy equal or greater value. That is a starting point, not a tax calculation. Exchange expenses, nonqualifying items, recapture rules, and closing adjustments can affect the answer. Your CPA should confirm the final target from the actual transaction records.

What is boot, and does it ruin the exchange?

“Boot” is common shorthand for cash or other non-like-kind value received in an exchange. Net debt relief can also enter the calculation. In an otherwise qualifying transaction, receiving boot can cause part of the gain to be recognized while another part remains deferred. The taxable amount generally depends on both the gain and the non-like-kind value received; additional recapture rules may apply. [2] [3]

A partial exchange can be an intentional choice. You might need some sale proceeds for another purpose and accept the resulting tax. That choice deserves a tax estimate before closing, not a surprise afterward.

Be careful about an easy-sounding fix: borrowing more on the replacement property while taking sale cash home. Extra borrowing does not generally erase cash boot dollar for dollar. The debt and cash rules are not mirror images. Ask your CPA to model what you actually plan to receive and pay. [3]

I would compare a sound partial exchange with a sound full exchange. I would not force all the money into a property that does not fit. Tax deferral is valuable, but it should be evaluated alongside the investment decision.

Compare direct property and passive ownership

You may want to keep choosing tenants, overseeing repairs, and deciding when to sell. Direct ownership can preserve those choices. It also leaves you responsible for the work, or for hiring people who do it. Review the property condition, leases, operating costs, financing, and local market before treating it as a replacement candidate.

A properly structured Delaware statutory trust, or DST, may offer a different path. IRS Revenue Ruling 2004-86 describes circumstances in which a beneficial interest in a trust can be treated as an interest in real property for exchange purposes. It does not mean that every trust, fund, or real estate security qualifies. The structure and facts matter. [6]

With a DST, investors generally rely on the sponsor and the trust's structure rather than directing the day-to-day property decisions themselves. Study who controls the assets, what the documents allow, how expenses are charged, and how an eventual exit may work. A stated hold period is a plan, not a promise that you can get your money back on that date.

Private offerings can be illiquid, provide less public information, and expose investors to a loss of principal. Being eligible to invest does not settle whether an offering fits your finances. Read the offering documents and ask about risks, fees, conflicts, and resale limits. [7]

Ask what must happen for the investment to work

I start with the plan for the real estate. Where will revenue come from? Which leases expire during the hold? What has the sponsor assumed about rent, expenses, and the price a future buyer might pay? You want to know which parts of the plan are already in place and which depend on events that have not happened.

Then I look at the weak points. Could a major tenant leave? Does the property need repairs? Is the loan coming due before the business plan is complete? Could higher insurance or property taxes absorb a rent increase? These are questions to investigate, not predictions that a particular property will fail.

Compare cash flow using consistent definitions. A projected distribution is not a guarantee. A distribution also is not the same measure as total return, which depends on more than the checks received during the hold. Ask whether projected payments are expected to come from operations, reserves, borrowing, or another source.

Finally, look beyond the new investment. Consider the property you already own, the cash you need outside the exchange, and the amount of control you want. Adding several investments does not create useful diversification if they all depend on the same tenant, market, or financing risk.

Keep ownership and special cases on the checklist

Confirm which taxpayer is selling and which taxpayer will acquire the replacement property. The name on a deed does not always settle the federal tax ownership question. Trusts, disregarded entities, partnerships, and changes in ownership require review. Do not change the buyer's entity just because a lender or closing form suggests it.

Related-party exchanges have special restrictions. A general two-year rule is part of the framework. But holding for two years does not fix every related-party issue. Buying from a relative through a QI can raise separate concerns. Tell your advisers about the relationship before contracts are signed. [3]

Buying the replacement first, improving it during the exchange, or separating partners before a sale can add another layer of rules. A reverse exchange may use an exchange accommodation titleholder and a special written arrangement. It is not just a regular exchange done backward. [2]

Mixed personal use, a planned move into the replacement home, seller financing, and property held briefly also deserve attention. When the facts are unusual, a broad article cannot supply the answer. Put those facts in front of your tax adviser early.

The work continues after the purchase

Keep the closing statements, exchange agreement, identification records, wire confirmations, debt records, and property descriptions together. Your CPA will need them to report the exchange and calculate the replacement basis. Form 8824 is the federal form used to report a like-kind exchange. Use the instructions for the relevant tax year. [3]

State rules deserve their own review. Moving from property in one state to property in another does not automatically remove the first state's interest in the deferred gain. For example, California requires Form FTB 3840 reporting for covered exchanges of California property for out-of-state property, with ongoing reporting in applicable cases. [8]

For a passive investment, keep distribution notices, tax documents, and sponsor reports too. Compare actual results with the plan you reviewed. When a report raises a question, ask it. The end of the exchange deadline is not the end of understanding what you own.

A practical plan for your first conversation

Bring the property address, ownership details, estimated sale price, mortgage balance, and expected closing date. If you have not listed yet, estimates are fine. Add a rough idea of your original cost, improvements, and depreciation records for the CPA. Do not treat a broker's sale estimate as a completed tax calculation.

Then describe the life you want after the sale. Do you need income soon? Would you rather manage less? Will you need access to some of the money? Is there a reason to keep control of a property? What would make you uncomfortable about a long hold?

Those answers help define the search. I would also write down a walk-away rule: a condition under which you would accept tax rather than buy the wrong investment. It is easier to make that decision before the deadline creates pressure. A useful exchange plan gives you room to think, not just a list of things to sign.

See what happens to the deferred gain

Here is a second, simpler example focused only on basis. Assume an investment property is worth $1 million and has an adjusted tax basis of $400,000. There is no debt, no cash taken out, no transaction expense, and no special recapture issue in this illustration. You exchange it for qualifying replacement property worth $1 million.

The $600,000 difference between value and basis has not disappeared. In this simplified fully deferred exchange, the replacement property's basis is $400,000, not a fresh $1 million purchase-price basis. If you later sell that replacement for $1 million in a taxable sale, the carried-over gain still matters. Future changes in value, depreciation, expenses, and other facts would affect the actual result. [2]

This example explains why the tax worksheet belongs in your permanent records. Years later, a new accountant may see the price paid for the replacement and need the earlier exchange records to understand its basis. Losing those records can make an already detailed calculation harder.

It also helps frame the decision fairly. Keeping money invested through deferral can be useful. But you are carrying a tax history forward, accepting new investment risks, and often committing money for years. Compare that path with paying tax now using assumptions you can explain.

I would ask the CPA to put both estimates on one page. Show the cash left after a taxable sale. Then show the equity in the planned exchange. Then compare the investment options available under each. That gives the tax benefit a place in the decision. It also keeps the risks and loss of access to cash in view.

Frequently asked questions

Can a 1031 exchange eliminate all my tax?

A qualifying exchange can defer gain, but deferral is not the same as permanent elimination. Boot, recapture rules, state treatment, and later transactions can affect the tax owed. Ask your CPA to compare the actual exchange with a taxable sale, including the replacement basis. [2] [3]

Can I buy a different property type?

Often, yes. Qualifying business or investment real estate can be like-kind even when one property is land and another is a building. Use, location, and ownership structure still matter. A personal home, company stock, or a partnership interest is not interchangeable with qualifying real property just because it relates to real estate. [2]

Do I have to find a replacement before selling?

You can identify it after the sale in a properly arranged delayed exchange, within the identification period. However, the exchange structure should be in place before the sale closes. Starting the property review sooner gives you more time; it does not change the legal deadlines. [4]

Does paying off my mortgage remove the debt requirement?

No. Debt paid off in connection with the sale still matters to the exchange calculation. You may be able to replace that value with new debt, additional cash, or both. The closing statements and the actual cash and liability flows determine the result. [3]

Can one sale fund several replacement investments?

Yes, an exchange can involve more than one replacement property. The identification rules, deadlines, ownership requirements, and money calculations still apply. Several investments may offer different exposures, but you should compare their shared risks too. The number of offerings alone does not prove diversification. [4]

Can I extend the deadlines if the lender is delayed?

An ordinary lending delay does not extend the exchange deadlines. Limited relief may apply under specific IRS rules, including qualifying disaster relief. Ask your advisers to verify a particular notice and your eligibility rather than relying on a general statement that extensions are available. [4] [5]

Is a DST always a qualifying replacement investment?

No. The tax treatment depends on the trust's structure and facts. Revenue Ruling 2004-86 addresses a specific arrangement and restrictions. Review the offering's tax analysis with your advisers. A familiar label does not replace that review or remove the investment's risks. [6]

What if none of the replacement options fits?

Compare the consequences of a partial exchange, a taxable sale, and any remaining suitable choices with your advisers. Do not assume that tax deferral makes an unsuitable investment acceptable. The goal is to make an informed decision about your money, including the tax cost of choosing a different path.

Sources and references

  1. Internal Revenue Service. Like-kind exchanges — Real estate tax tips. Current IRS web guidance.Relevant sections: Real-property scope; business and investment use; property held primarily for sale. Accessed October 6, 2026.
  2. Internal Revenue Service. Publication 544 (2025), Sales and Other Dispositions of Assets. 2025 edition, current publication reviewed October 6, 2026.Relevant sections: Like-Kind Exchanges; Deferred Exchange; Partially Nontaxable Exchanges; Basis of property received; Partnership Interests. Accessed October 6, 2026.
  3. Internal Revenue Service. Instructions for Form 8824 (2025), Like-Kind Exchanges. 2025 edition, current instructions reviewed October 6, 2026.Relevant sections: Like-kind property; Line 5; Lines 15 and 15a; Lines 18–25; related-party exchanges. Accessed October 6, 2026.
  4. Office of the Federal Register / Treasury Department. 26 CFR § 1.1031(k)-1, Treatment of deferred exchanges. eCFR page displayed Title 26 current through October 2, 2026.Relevant sections: Paragraphs (a), (b), (c)(1)–(6), (d), (e), (f), (g), and (k). Accessed October 6, 2026.
  5. Internal Revenue Service. Revenue Procedure 2018-58. 2018 procedure; applicability depends on the relevant current relief notice.Relevant sections: Section 17: like-kind exchange deadline relief; read with event-specific IRS guidance. Accessed October 6, 2026.
  6. Internal Revenue Service. Revenue Ruling 2004-86. 2004 ruling; applies to the described structure and facts, not blanket approval.Relevant sections: Facts, analysis, and holdings on a Delaware statutory trust and Section 1031. Accessed October 6, 2026.
  7. U.S. Securities and Exchange Commission, Investor.gov. Private Placements under Regulation D — Updated Investor Bulletin. SEC investor bulletin.Relevant sections: Investment risks, illiquidity, disclosure, and investor eligibility. Accessed October 6, 2026.
  8. California Franchise Tax Board. 2025 Instructions for Form FTB 3840, California Like-Kind Exchanges. 2025 instructions.Relevant sections: Who must file; filing requirements; California-source deferred gain. Accessed October 6, 2026.

Educational information, not an offer or a personal tax, legal, or investment recommendation. Examples are hypothetical and omit stated adjustments. Tax treatment depends on your facts and current law. Review your transaction with your CPA, attorney, and qualified intermediary. Real estate investments can lose value and may be illiquid.

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