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What Is Boot in a 1031 Exchange? Cash, Debt, and Tax Examples

By Jerry Baker

Boot is money or other non-like-kind value received in a 1031 exchange, including certain net debt relief. It can make part of an otherwise qualifying exchange taxable without automatically undoing the whole exchange. This guide explains the common sources of boot, how the basic math works, and what to check before closing.

What does boot mean in a 1031 exchange?

The exchange rules allow gain to remain deferred when an investment continues in qualifying real estate. If you also receive money or other property, some gain may have to be recognized. Investors and advisers commonly call that non-like-kind value “boot.” The IRS describes the resulting deal as a partially nontaxable exchange. [1]

Boot is not a separate tax with its own universal rate. It is part of the math that determines how much gain is currently recognized. The character of that gain and your tax situation determine the applicable tax treatment.

It is also not automatically a mistake. You may choose to keep cash because you need accessible reserves or want to reduce your investment in real estate. The goal is to understand that choice before closing, including the cash left after tax.

I would be more concerned about accidental boot: a returned balance, a debt shortfall, or an expense paid from the wrong funds that nobody included in the plan. Those items are often small enough to overlook and large enough to matter.

Cash boot is the easiest type to see

Cash received as part of an exchange can create recognized gain. Examples include money taken out at the sale closing or funds returned after the replacement purchase. The tax result depends on the complete deal, not the name attached to the payment. [2]

Suppose you sell debt-free investment property for $1 million, ignoring costs. You use $900,000 for qualifying replacement real estate and receive the remaining $100,000. That $100,000 is cash boot for the simplified example. It is not automatically $100,000 of tax.

If the old property's adjusted basis was $400,000, the total gain would be $600,000 before other adjustments. In the basic example, $100,000 would be recognized and $500,000 would remain deferred. The actual return requires the full basis, expense, and gain-character analysis.

Do not assume you can fix receipt of sale funds by later returning the same amount. Actual or constructive receipt can create a larger exchange qualification problem. Arrange the exchange before closing and follow the QI's documented funds process. [3]

Debt relief can create boot without cash in your pocket

Debt paid off or assumed in connection with the property transfer matters to the exchange math. For the basic recognized-gain limit, liabilities from which you are relieved are treated as money received, subject to the applicable offsets. New liabilities you assume and added cash you pay can affect that result. [1] [2]

Consider a $1 million property with $400,000 of debt and $600,000 of equity. You reinvest all $600,000 in an $800,000 replacement with $200,000 of debt. Ignoring costs and other adjustments, the new debt is $200,000 below the old debt, and the replacement value is also $200,000 lower.

The fact that you reinvested every dollar of equity does not remove that $200,000 difference. It can create debt boot even though you never received a $200,000 check. Paying the old loan off at closing does not make it irrelevant.

This is why I separate sale value, equity, and debt on the first worksheet. A plan that tracks only the money held by the QI can miss a large part of the exchange target.

Can added cash replace debt?

Yes, added cash can address a debt-replacement shortfall in the basic exchange math. You are not always required to borrow the same amount again. The deal must still meet the other exchange requirements. [1]

Return to the $1 million sale with $600,000 of equity and $400,000 of old debt. Suppose you buy a $1 million replacement with $600,000 of exchange equity, $200,000 of new debt, and $200,000 of personal cash. The added cash covers the reduction in debt in this simplified example.

Or you might use the $600,000 exchange equity and $400,000 of personal cash to buy the replacement without a loan. That can address the same value target while changing your financing risk. It also uses more of your liquid assets.

The choice is therefore both a tax question and a cash-management question. Reducing debt may be attractive, but tying up the funds you need for emergencies can create another problem. Review the balance sheet after the exchange, not just the closing worksheet.

More debt does not simply cancel cash received

The basic liability netting rules are not symmetrical. Extra replacement borrowing does not automatically offset cash received. The Form 8824 instructions include an example in which a taxpayer assumes more debt than is given up but still recognizes gain from cash received. [2]

Imagine a deal in which you receive cash while also buying a more expensive property with a larger loan. Looking only at the new property's price might suggest full deferral. That conclusion can be wrong because the cash and liability math have separate rules.

Ask the CPA to show the math by category: money received, other property received, liabilities relieved, liabilities assumed, added cash, and allowable exchange expenses. A single “net funds” number can hide the distinction.

Do not borrow extra solely to make a worksheet appear balanced without understanding the tax treatment. The loan is a real obligation even if the intended tax offset does not work. Get the explanation before committing to the financing.

Boot and realized gain are different numbers

Under the basic Section 1031 boot math, recognized gain is limited by the gain realized. Publication 544 describes comparing realized gain with money and non-like-kind value received, after applicable exchange-expense adjustments. Separate recapture rules can also matter and should not be ignored. [1]

For a simple example without debt, costs, or recapture, assume property worth $500,000 has $470,000 of basis. You receive $450,000 of qualifying replacement property and $50,000 in cash. Realized gain is $30,000, so the basic recognized gain is $30,000, not the full $50,000 received.

Now change the basis to $200,000. Realized gain is $300,000. With the same $50,000 cash receipt, the basic recognized gain becomes $50,000, while the remaining gain may be deferred. The amount of cash is unchanged; the basis changed the math.

These examples are teaching tools, not return preparation. A CPA needs the actual depreciation schedules, improvements, prior exchanges, expenses, and asset allocations. Your original purchase price alone is not necessarily your current adjusted basis.

Why boot has no single tax rate

The recognized amount can contain different kinds of gain. Business-property rules, holding periods, depreciation, and other facts affect its character. Federal and state taxes may both be relevant. Your total income can also affect the result. [1]

Be especially careful with a statement such as “all boot is taxed at 25%.” That is not a complete rule. Ordinary depreciation recapture and unrecaptured Section 1250 gain are different concepts. Neither should be replaced by one assumed percentage applied to every exchange.

Form 8824 has a separate recapture step. Its instructions show situations where recapture can change the recognized-gain result beyond the simple cash-boot math. An exchange of real property is not a promise that every depreciation-related item will stay deferred. [2]

For planning, request an estimate of both the amount recognized and the tax due. Then ask which assumptions drive that estimate. A useful answer may be a range until the final settlement statements and asset values are available.

Review closing expenses one line at a time

Some exchange expenses affect the amount realized and recognized-gain math. Publication 544 gives examples such as brokerage commissions, attorney fees, and deed-preparation fees connected with disposing of the relinquished property. It does not say that every item on a closing statement receives identical treatment. [1]

A settlement statement can also include loan costs, interest, taxes, rent adjustments, deposits, reserves, and other amounts. Ask the CPA and QI how each item should be funded and reported. Paying something through escrow does not, by itself, make it an eligible exchange expense.

Make this review before the final wire. If a cost should be paid with separate funds, arrange those funds in time. Do not expect the closing agent to make a tax determination that belongs to your adviser.

Keep the draft and final statements. If an item changes, ask whether the exchange estimate changes too. A small leftover balance or a new credit can affect the final result even when the replacement purchase price stays the same.

Other property and seller notes require separate attention

A property deal may include equipment, furniture, a buyer's note, or other non-real-estate value. Section 1031 now applies to qualifying real property, and classification can require a closer look. Do not assume that everything transferred with a building is automatically like-kind real property. [1]

A buyer's installment note is also not simply another building. In a qualifying combined exchange and installment sale, special rules may spread eligible note-related gain as payments arrive. That requires a separate analysis of basis, contract price, interest, and other items. [4]

Agree on the asset list and reasonable values with the right advisers. The legal documents, financial terms, and tax reporting should tell a consistent story. A broad contract label should not substitute for an asset-level review.

If seller financing is proposed late in negotiations, pause long enough to update the exchange plan. It can change the funds available for replacement property and the timing of tax. A last-minute concession may have effects that last for years.

Several replacements can help, but the rules still apply

You may buy more than one qualifying replacement property in an exchange. A second purchase may help use remaining equity or change the overall financing mix. The identification must fit the applicable limits, and each purchase must be completed within the exchange period. [3]

Do not simply add unrelated deals together after the fact. Ask your advisers which properties belong to the exchange, how liabilities and expenses are allocated, and whether multiple-property rules affect the math.

A qualifying DST interest may be one option, but it is not an unlimited change machine for leftover cash. Actual offerings have minimums, capacity limits, acceptance procedures, and closing requirements. The tax treatment depends on the trust's structure and facts. [5]

The investment also has to fit you. Private real estate securities can be illiquid, involve fees, and lose principal. Avoid using an unsuitable investment solely to remove a modest taxable amount from the exchange. [6]

A deliberate partial exchange can be reasonable

Full deferral is one goal, not the only possible goal. You may need cash for living costs, a reserve, another obligation, or a different investment. Keeping some money can be a deliberate choice after estimating the tax.

Suppose you want $100,000 available after closing. The planning question is not only whether you can take $100,000 out. It is how much cash remains after the resulting tax and whether the exchange agreement permits release at the time you expect.

Compare the partial exchange with buying more property, adding personal cash, or accepting different financing. Include fees and risk in that comparison. Spending substantially more, or taking on debt you dislike, to avoid a smaller tax cost may not serve your needs.

I would rather show the tradeoff clearly than treat “zero boot” as a score to maximize. The decision should leave you with a portfolio and cash position you can live with after the tax return is filed.

You may not be able to withdraw exchange funds whenever you want

The QI safe harbor relies in part on restrictions on your rights to receive, pledge, borrow, or otherwise benefit from exchange funds. The regulations describe circumstances in which funds may be released. They are not simply a savings account you can access on request. [3]

Read the exchange agreement before signing it. Ask what happens if you identify nothing, if a selected purchase fails, or if funds remain after closing. The answer can depend on the stage of the exchange and the agreement's terms.

If you need cash outside the exchange, discuss that need before the sale. The advisers can weigh the structure and tax consequences while there is time to document the plan. Do not promise money to another purpose based on an assumed release date.

Also distinguish a permitted release from a tax-free release. A payment may be allowed under the agreement and still create recognized gain. The QI's ability to send money and the CPA's tax math are separate questions.

Refinancing is not an automatic boot cure

Borrowing before or after an exchange can raise questions about the deal's substance and the relationship among its steps. Timing, business purpose, documents, and the use of proceeds matter. There is no universal waiting period in this guide that guarantees a tax result.

If cash-out refinancing is part of the plan, disclose it to the CPA and attorney early. Ask them to evaluate it with the sale and replacement purchase rather than as an isolated loan. A financing arrangement should not be described as safe merely because it occurs on a separate day.

Then review the investment effect. More leverage can reduce your equity cushion and increase the pressure from interest payments or maturity. Even when the tax treatment is acceptable, the loan still needs to fit the property's cash flow and your risk tolerance.

A practical review before you sign

Begin with the current sale statement and payoff estimate. Record expected proceeds, debt relief, and costs. Ask the CPA which adjustments affect the replacement target and gain math. Label preliminary numbers so they are not mistaken for final figures.

Next, list the proposed replacements with their purchase values, exchange equity, added cash, debt, and closing costs. For a fractional interest, use the offering's written investor allocations. A lender's property-level loan-to-value ratio may not be the same as the investor's exchange figures.

Identify every dollar expected to come back to you and every item of non-like-kind property. Ask why it is there, whether you want it, and how it will be treated. Confirm the working plan with the QI and tax adviser before authorizing funding.

After closing, check the final statements against that plan. Preserve the Form 8824 math and replacement-basis schedules. A successful exchange file should explain both the gain deferred and any amount recognized, so the next sale does not start with missing history.

An expense-adjusted budget is more useful than a headline price

Here is a simplified budget that includes selling expenses. Assume a $1 million sale, a $400,000 loan payoff, and $50,000 of costs that the tax adviser confirms are allowable exchange expenses. The net equity available is $550,000. For this example, the expense-adjusted replacement-value target is $950,000 rather than the unadjusted $1 million price.

If the owner acquires $950,000 of qualifying replacement property using $550,000 of equity and $400,000 of debt, the basic funding amounts line up. This example assumes no other cash, property, adjustments, or recapture issues. It does not mean every seller can subtract every closing charge.

Now suppose the replacement costs $900,000 and the owner still uses $400,000 of debt. Only $500,000 of equity is needed, leaving $50,000 to be returned. The lower price has created a cash difference that the original plan did not include.

If adjusted basis was $300,000, the simplified realized gain would be $650,000: $1 million less $50,000 of allowable expenses and $300,000 of basis. With the stated assumptions, the $50,000 returned would be recognized, and $600,000 would remain deferred. No tax rate is assumed here. [1]

The lesson is to update the entire worksheet when one number changes. A lower price may be welcome from an investment standpoint and still affect the exchange result. A higher cost may reduce available cash without receiving the tax treatment you expected. The final documents, rather than an early estimate, determine the math.

Frequently asked questions

Does receiving boot make my whole exchange fail?

Not necessarily. An otherwise qualifying exchange can be partially taxable. Money or non-like-kind value may cause some gain to be recognized while other gain remains deferred. A separate failure of the exchange rules, such as an impermissible receipt of sale funds, can have a different result. [1] [3]

Is boot the same as the tax I owe?

No. Boot is part of the recognized-gain math. Tax depends on the gain's character, your other tax facts, and applicable federal and state rules. Ask for a tax estimate rather than treating a $50,000 boot figure as a $50,000 tax bill. [2]

Can I reduce debt without creating boot?

Potentially. Added personal cash can offset a debt shortfall in the basic math. The replacement value, equity, costs, and other facts must still work. You do not always have to take on the same loan amount again. [1]

Can a bigger replacement loan cancel cash I keep?

Not automatically. The Form 8824 rules distinguish cash received from liability offsets. Extra debt does not simply erase cash boot. Have the adviser show both parts of the math before relying on a larger loan. [2]

Are all closing charges safe to pay with exchange funds?

No blanket rule covers every charge. Some exchange expenses receive favorable treatment, while other items need separate funding or reporting. Have the CPA and QI review the actual statement, including loan charges, adjustments, reserves, and credits. [1]

Can I put the last few dollars into a DST?

Only if a suitable qualifying offering accepts the amount and can be properly identified and closed in time. Minimums, available capacity, paperwork, and investment risks still matter. A DST is an investment decision, not an automatic solution for every leftover balance. [5] [6]

What should I do if I discover unexpected boot after closing?

Give the final documents to your CPA promptly. Ask what is recognized, how it affects estimated payments, and what records should be kept. Do not assume that moving money afterward reverses the event. The right response depends on what actually occurred.

Sources and references

  1. 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.
  2. 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.
  3. 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.
  4. Internal Revenue Service. Publication 537 (2025), Installment Sales. Current IRS page retrieved October 6, 2026; publication edition 2025 where specified.Relevant sections: Figuring Installment Sale Income; Like-Kind Exchange; Depreciation Recapture; Pledge Rule; Interest on Deferred Tax. Accessed October 6, 2026.
  5. 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.
  6. 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.

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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