Conservation Easements After Malibu Valley: What Tax Professionals Should Know
A recent Tax Court decision reinforces the importance of defensible valuations, genuine development potential, careful documentation, and good-faith professional advice.
Septiembre 2026 | RENDIO
Conservation easements are a legally recognized charitable contribution structure under IRC §170(h). A landowner may retain ownership of property while transferring enforceable development or use restrictions to a qualified organization for conservation purposes. When the statutory requirements are satisfied, the landowner may qualify for a charitable deduction based generally on the property’s fair market value before the easement, less its fair market value afterward.
The IRS’s enforcement focus is not on conservation easements as a category, but on whether particular transactions comply with the law. Its concern is whether particular transactions comply with the law. That includes whether the easement serves a qualified conservation purpose, whether the valuation is reliable, whether the transaction involves a prohibited quid pro quo, and whether the taxpayer and advisors exercised appropriate care.
That distinction is important in the wake of the Tax Court’s August 17, 2026, decision in Malibu Valley Land, LLC v. Commissioner. The case involved a 2014 contribution, so it predates the current partnership limitation under IRC §170(h)(7). The memorandum does not validate every conservation easement or resolve the risks associated with syndicated transactions. It does, however, show that a properly documented easement may support a substantial deduction when the taxpayer can establish genuine development potential, a credible valuation methodology, and a good-faith compliance process.
How conservation easements work
A conservation easement allows a landowner to retain ownership while permanently restricting development or other uses of the property. The easement is transferred to a qualified organization, such as a governmental entity or a qualified conservation organization, for a recognized conservation purpose.
The before-and-after valuation framework is central to the possible tax benefit. The easement’s value generally reflects the difference between:
The property’s fair market value immediately before the easement; and
The property’s fair market value after the easement’s restrictions are imposed.
If a property has credible development potential that contributes significantly to its value, permanently restricting that development may produce a substantial difference between the before and after values. The restriction continues even if the property is later sold or transferred.
That generates a possible tax deduction that is not based simply on the size of the property or the taxpayer’s personal estimate of its potential. It depends on the fair market value of the rights surrendered and the taxpayer’s ability to support that value with reliable evidence.
Why conservation easements attract IRS attention
Conservation easements have attracted significant IRS scrutiny because some transactions relied on aggressive appraisals, unsupported development assumptions, or promotional structures that promised charitable deductions far greater than the investors’ economic contributions.
Syndicated transactions have drawn particular attention. In these arrangements, investors acquire interests in a partnership with the prospect of receiving charitable deductions equal to multiples of their investments. Those deductions may depend on appraisals that assign sharply increased values to the property based on purported development potential.
When the development assumptions are unrealistic, legally unavailable, or insufficiently supported, the resulting valuation may be substantially overstated. Accuracy-related penalties may also apply when the taxpayer cannot establish reasonable cause and good faith or otherwise satisfy the applicable penalty defenses.
The government has responded with additional restrictions. For example, IRC §170(h)(7) generally disallows a partnership conservation contribution when the claimed contribution exceeds 2.5 times the sum of the partners’ relevant basis.
These rules target specific transaction structures and valuation practices. They do not make conservation easements unlawful. The legal question remains whether a particular contribution meets the requirements of the Internal Revenue Code and whether the claimed amount is supported by the facts.
Malibu Valley: A fact-specific but meaningful decision
Malibu Valley involved Malibu Valley Land, LLC’s contribution of a perpetual conservation easement of approximately 298 acres in the Santa Monica Mountains. The partnership claimed a charitable deduction of $32 million. The IRS sought to disallow the deduction entirely or, alternatively, value the easement at $4.65 million.
The Tax Court rejected both positions. It determined that the easement had a value of approximately $19.7 million, subject to final calculations under Tax Court Rule 155.
The court’s decision was based on the property’s specific history and characteristics. The property was subject to Vesting Tentative Tract Map 45465, an unusually significant development entitlement that included 56 proposed lots on the portion covered by the easement. The map had been approved in 1988, and the court concluded that it preserved certain development standards for the property’s northern portion.
The court also found genuine development potential. That conclusion was supported by the vested tract-map rights, the property’s location, surrounding market conditions, prior development activity, and evidence concerning the feasibility of subdivision.
The decision illustrates that development potential should not be dismissed as hypothetical when the record demonstrates that the proposed use is reasonably probable, legally permissible, physically possible, financially feasible, and maximally productive.
The court treated discounted cash flow as a legitimate method
One of the most important aspects of Malibu Valley is its treatment of the income approach.
Under the income approach, an appraiser estimates the future cash flows that a property could generate and discounts those cash flows to present value. In a development context, the analysis may consider expected sales proceeds, development costs, timing, absorption, market conditions, and risk.
The parties agreed that the income approach provided credible evidence of value in this case, distinguishing Malibu Valley from recent conservation-easement cases. The court nevertheless rejected both sides’ analyses in part because each relied on an extreme assumption about the property’s development potential. It ultimately valued the northern and southern portions separately, considering both market and income evidence for each. The court established that the income approach provided credible evidence of value, distinguishing the case from other conservation easement disputes.
The lesson is that discounted cash flow valuation can be legitimate when its assumptions are credible, transparent, and tied to documented development evidence.
The penalty decision matters
For investors, CPAs, and other financial advisors, the penalty analysis may be as important as the valuation holding.
The Tax Court found that accuracy-related penalties did not apply. Its decision considered the taxpayer’s reasonable cause and good-faith process, including the partnership’s investigation of the property’s value and its reliance on professional advice.
The court’s ruling does not create a safe harbor for an overstated appraisal. Nor does reliance on an appraiser automatically eliminate penalties. A taxpayer must still show that the reliance was reasonable and that the professional advice was based on relevant information available when the return was filed.
The decision does establish an important practical point: a valuation that is ultimately rejected does not, by itself, prove that the taxpayer acted negligently or lacked reasonable cause.
That makes the process significant. Advisors should be able to show:
How the property’s development potential was investigated.
Why the selected valuation methodology was appropriate.
Whether the appraiser considered relevant legal, physical, financial, and market constraints.
What documents and professional opinions were reviewed.
How the taxpayer evaluated and relied on that information before filing the return.
Documentation prepared after an examination begins may be less persuasive than a contemporaneous record showing how the taxpayer reached the original position.
The IRS is centralizing conservation easement enforcement
The Malibu Valley decision also comes as the IRS changes how it handles conservation easement disputes.
In August 2026, the IRS announced the creation of an Office of Conservation Easements to centralize technical expertise and coordinate policy, enforcement, and case-resolution strategy. The IRS also ended its uniform settlement initiative and stated that taxpayers with pending cases may continue to pursue settlement through their assigned examination or Chief Counsel representatives.
The change may produce greater procedural coordination, but it does not signal that the IRS has reduced its scrutiny of conservation easements. The agency continues to distinguish between legitimate charitable contributions and transactions involving inflated valuations, unsupported assumptions, or prohibited benefits.
What CPAs and financial advisors should take away
Malibu Valley offers useful guidance without providing a blanket endorsement of conservation easements.
The case demonstrates that a conservation easement can be legally valid and economically significant when the underlying development potential is genuine and the taxpayer can support the claimed value. It also demonstrates that discounted cash flow analysis may be appropriate when the projected cash flows are based on credible assumptions about development, costs, timing, market conditions, and risk.
For CPAs, financial advisors, and investors, the practical priorities are clear:
Treat conservation easements as a legally recognized planning structure, not as an inherently abusive transaction.
Evaluate whether the property’s claimed highest and best use is legally permissible, physically possible, financially feasible, and maximally productive.
Use a qualified, independent appraiser with relevant experience.
Preserve contemporaneous records showing the taxpayer’s due diligence and reliance on professional advice.
Analyze whether any expected benefit is incidental or part of a negotiated exchange.
The case does not validate every conservation easement, every appraisal, or every syndicated structure. It does show that credible assumptions, genuine economic potential, defensible methodology, careful documentation, and good-faith professional advice can materially affect the outcome when a conservation easement is challenged.