Understanding Boot in a 1031 Exchange: What Mineral Interest Sellers Need to Know

By Richard Partin, Managing Member, Texas State Royalties LLC Fort Worth, Texas | Published: October 13, 2026 | Last Updated: October 16, 2026

Boot is the portion of a 1031 exchange that does not qualify for tax deferral. It is taxable in the year of the exchange — even if the rest of the gain is deferred. Understanding what boot is, how it arises in mineral interest exchanges, and how to structure the exchange to avoid it is essential for sellers who want to defer the maximum amount of gain.

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Quick Answer: Boot is any non-like-kind property received in a 1031 exchange — most commonly cash retained from the exchange proceeds or replacement property of lesser value than the relinquished property. Under IRS Publication 535, boot is taxable in the year of the exchange. To defer the entire gain, reinvest all exchange proceeds in replacement property of equal or greater value.

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What Is Boot and How Does It Arise?

Boot is any non-like-kind property received in a 1031 exchange. The most common forms of boot in mineral interest exchanges are:

Cash boot. Cash retained from the exchange proceeds instead of being reinvested in replacement property. If the seller receives $500,000 from the sale of the relinquished property and reinvests only $450,000 in replacement property, the $50,000 difference is cash boot — taxable in the year of the exchange.

Mortgage boot (debt relief). If the relinquished property carried debt and the replacement property carries less debt (or no debt), the difference is treated as boot. For mineral interests, which are rarely leveraged, mortgage boot is uncommon — but it can arise if the seller used the mineral interest as collateral for a loan.

Value shortfall. If the replacement property is of lesser value than the relinquished property, the difference is boot. This is the most common source of boot in mineral interest exchanges — particularly when title examination reveals that the replacement property's actual net mineral acres are less than the stated figure due to prior reservations in the deed chain.

Non-exchange closing costs. Closing costs paid from exchange proceeds that are not "exchange expenses" under the Treasury Regulations are boot. Exchange expenses include QI fees, title insurance, recording fees, and attorney fees directly related to the exchange. Non-exchange expenses — prepaid property taxes, homeowner association fees, loan origination fees — are boot if paid from exchange proceeds.

How Do Prior Reservations Create Boot in Mineral Interest Exchanges?

In Comanche, Eastland, and Palo Pinto Counties, prior reservations in deed chains routinely reduce the seller's stated ownership. I have reviewed Palo Pinto County deed chains where prior reservations reduced stated ownership by 25% or more. If the title examination for the replacement property reveals prior reservations that reduce the actual net mineral acres below the stated figure, the replacement property value may be less than the relinquished property value — creating boot.

To avoid this, begin the title examination for the replacement property before the relinquished property closes. If prior reservations are discovered, either negotiate a price reduction (so the replacement property value still equals or exceeds the relinquished property value) or identify alternative replacement property within the 45-day identification window. Under Texas Estates Code, unestablished heirship is the most common title defect in Comanche and Eastland County acquisitions — allow time to resolve title issues before the 45-day deadline.

How Do You Avoid Boot?

To defer the entire gain, the seller must:

1. Reinvest all of the exchange proceeds in replacement property
2. Acquire replacement property of equal or greater value than the relinquished property
3. Assume equal or greater debt on the replacement property (or contribute additional cash) if the relinquished property carried debt

The Texas Comptroller imposes severance tax at 4.6% on oil and 7.5% on gas — this is a production-level deduction that does not affect the exchange calculation. Reserve classifications follow SEC Regulation S-X Rule 4-10. Under Texas Property Code § 1.002, mineral interests are real property; the replacement property deed must be recorded within the 180-day window. Under Texas Natural Resources Code, the operator is obligated to pay royalties as specified in the lease once the division order is processed. Qualifying owners may deduct percentage depletion at 15% of gross income under IRS Publication 535.

Texas State Royalties works with buyers using 1031 exchange proceeds to acquire replacement mineral interests. Start Your Buyer Search or review our acquisition services.

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Key Takeaways

• Boot is any non-like-kind property received in a 1031 exchange — cash retained, replacement property of lesser value, or non-exchange closing costs paid from exchange proceeds; boot is taxable in the year of the exchange under IRS Publication 535; verify production history for replacement mineral interests against Texas Railroad Commission (RRC) records before closing
• Prior reservations in Comanche, Eastland, and Palo Pinto County deed chains can reduce actual NMA below the stated figure — creating a value shortfall and boot; begin the title examination before the relinquished property closes
• Unestablished heirship under the Texas Estates Code is the most common title defect in Comanche and Eastland County acquisitions; allow time to resolve title issues before the 45-day identification deadline
• To defer the entire gain, reinvest all exchange proceeds in replacement property of equal or greater value; any shortfall — even $1 — is taxable boot
• The Texas Comptroller imposes severance tax at 4.6% on oil and 7.5% on gas; reserve classifications follow SEC Regulation S-X Rule 4-10
• Under Texas Property Code § 1.002, mineral interests are real property; the replacement property deed must be recorded within the 180-day window
• Under Texas Natural Resources Code, the operator is obligated to pay royalties as specified in the lease once the division order is processed; qualifying owners may deduct percentage depletion at 15% of gross income under IRS Publication 535

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Frequently Asked Questions

Is boot always taxable at the ordinary income rate?

No. Boot is taxed at the applicable capital gains rate — long-term if the relinquished property was held for more than one year, short-term if held for one year or less. The character of the gain (ordinary income vs. capital gain) depends on the nature of the property and the holding period. Consult a qualified CPA for advice specific to your situation.

Can I avoid boot by contributing additional cash to the exchange?

Yes. If the replacement property is of lesser value than the relinquished property, the seller can contribute additional cash from outside the exchange to make up the difference. The additional cash is not boot — it is a contribution to the purchase price. The seller must reinvest all of the exchange proceeds plus the additional cash in the replacement property.

What happens to the boot if I cannot avoid it?

Boot is recognized as gain in the year of the exchange and taxed at the applicable capital gains rate. The rest of the gain — the portion reinvested in like-kind replacement property — is deferred. A partial exchange is better than no exchange: even if some boot is unavoidable, deferring the majority of the gain is still valuable.

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About the Author

Richard Partin is the Managing Member of Texas State Royalties, a Fort Worth-based, buyer-first firm that sources producing oil and gas mineral interests through established industry relationships. He holds a degree from the University of Texas at Arlington and has years of hands-on experience in oil and gas acreage interests, working interests, and capital formation across active Texas producing regions.

Texas State Royalties facilitates mineral-interest acquisitions and works exclusively with buyers. Information is for educational purposes only and is not legal, tax, or investment advice. Buyers should consult qualified legal, tax, and financial advisors before making any acquisition decision.