Why was the conservation easement deduction denied in the Oakbrook case?

The Tax Court denied the deduction due to the taxpayer's failure to obtain a proper contemporaneous written acknowledgment and failure to meet qualified appraisal requirements. These technical prerequisites have been fatal to numerous conservation easement claims, and courts have shown no willingness to excuse noncompliance.

What is the contemporaneous written acknowledgment requirement for charitable contribution deductions?

For charitable contributions exceeding $250, the donor must obtain a written acknowledgment from the donee organization at or before the time the tax return is filed. For conservation easements, this acknowledgment must describe the contribution, state whether goods or services were provided in return, and meet specific IRS content requirements.

Tax Court Rejects Charitable Deduction for Conservation Easement in Oakbrook | Lynch Law

The Tax Court continues to reject charitable deductions claimed for conservation easement transactions, adding to a growing body of case law that has made syndicated conservation easements one of the most heavily litigated areas of tax law. In a series of decisions during 2023, the court has focused on two recurring deficiencies that have proved fatal to taxpayers' claims: the failure to obtain a proper contemporaneous written acknowledgment and the failure to meet the qualified appraisal requirements.^[1] These requirements, while seemingly technical, are substantive prerequisites that the IRS and the courts have shown no willingness to excuse.

The Conservation Easement Landscape

A conservation easement is a voluntary legal agreement between a landowner and a land trust or government agency in which the landowner permanently restricts certain uses of the property—typically development rights—in exchange for a charitable deduction equal to the reduction in the property's fair market value resulting from the restriction. When used as intended, conservation easements serve a legitimate conservation purpose and provide a meaningful tax benefit to landowners who are willing to give up development potential.

The problem arises in syndicated conservation easement transactions, in which promoters assemble groups of investors into partnerships, the partnership acquires land (often at or near fair market value), and the partnership then donates a conservation easement that is appraised at a value many times the purchase price. The investors claim charitable deductions that vastly exceed their investment—sometimes by ratios of four-to-one or higher. The IRS designated these transactions as "listed transactions" in Notice 2017-10, requiring taxpayers who participate in them to disclose the transaction to the IRS and triggering heightened scrutiny.^[2]

The Contemporaneous Written Acknowledgment Requirement

Under IRC § 170(f)(8), no deduction is allowed for a charitable contribution of $250 or more unless the taxpayer obtains a contemporaneous written acknowledgment from the donee organization. The acknowledgment must include a description of the property contributed, a statement of whether the donee provided any goods or services in consideration for the contribution, and a good-faith estimate of the value of any goods or services provided. The acknowledgment must be obtained by the taxpayer before the earlier of the date the return is filed or the due date (including extensions) for the return.

In several 2023 decisions, the Tax Court has denied deductions where the acknowledgment letter was deficient—for example, where it failed to state whether goods or services were provided in exchange for the easement, or where the acknowledgment was not obtained before the filing deadline. The court has consistently held that these requirements are strict: substantial compliance is not enough. A taxpayer who receives an acknowledgment that omits a required element has no deduction, regardless of the merits of the underlying contribution.^[3]

The Qualified Appraisal Requirement

For charitable contributions of property valued at more than $5,000, IRC § 170(f)(11) requires a qualified appraisal prepared by a qualified appraiser. The appraisal must include, among other things, a description of the property, the appraised fair market value, the method of valuation used, and the specific basis for the valuation. The appraisal must be conducted no earlier than 60 days before the contribution and no later than the due date (including extensions) for the return on which the deduction is first claimed.

The Tax Court has been particularly rigorous in its application of the qualified appraisal requirements to conservation easement cases. Deficiencies that have proved fatal include appraisals that fail to adequately describe the methodology used, appraisals that do not account for the property's condition at the time of the contribution, appraisals prepared by individuals who do not meet the definition of a qualified appraiser, and appraisals that contain inflated valuations unsupported by comparable sales data.

The valuation issue has been central to most syndicated easement cases. The IRS and the Tax Court have repeatedly found that the appraised values used in these transactions are grossly inflated—that the reduction in value attributable to the conservation restriction is far less than the amount claimed. When a partnership purchases land for $1 million and claims a conservation easement deduction of $5 million six months later, the burden on the appraiser to justify that valuation is heavy, and the Tax Court has been skeptical of the methodologies used to support these claims.^[4]

The Penalty Landscape

Taxpayers who claimed deductions for syndicated conservation easements face not only disallowance of the deduction but also substantial penalties. The accuracy-related penalty under IRC § 6662 is 20 percent of the underpayment attributable to the disallowed deduction. For gross valuation misstatements—where the claimed value of the property exceeds 200 percent of the correct value—the penalty increases to 40 percent. And because syndicated conservation easements are listed transactions, failure to disclose the transaction on Form 8886 can trigger additional penalties under IRC § 6707A.

The cumulative effect of these penalties can be devastating. A taxpayer who claimed a $500,000 deduction that is fully disallowed, resulting in an additional tax liability of approximately $185,000 (at a 37 percent rate), could face penalties of $37,000 to $74,000 on top of the additional tax, plus interest running from the original return due date. For partnerships with multiple investors, the aggregate exposure across all partners can reach into the tens of millions of dollars.

Lessons for Taxpayers

The Tax Court's conservation easement decisions reinforce several important lessons. First, the technical requirements for charitable deductions are not mere formalities—they are substantive prerequisites, and failure to satisfy them results in complete disallowance of the deduction regardless of the underlying merits. Second, appraisal quality matters. An appraisal that is inflated, poorly supported, or prepared by an unqualified appraiser will not withstand IRS scrutiny. Third, transactions that are "too good to be true"—those promising deductions of four or more times the investment—remain firmly in the IRS's crosshairs.

For taxpayers who have already participated in syndicated conservation easement transactions, the question is not whether the IRS will challenge the deduction but when. Working with experienced tax controversy counsel to evaluate the strength of the position, assess penalty exposure, and develop a defense strategy is essential. For those considering future conservation easement contributions, the lesson is to ensure that the transaction has genuine conservation purpose, that the appraisal is defensible, and that all technical requirements are scrupulously satisfied.^[5]

References

^[1] See, e.g., Oakbrook Land Holdings, LLC v. Commissioner, T.C. Memo. 2023-54; Plateau Holdings, LLC v. Commissioner, T.C. Memo. 2023-42.
^[2] Notice 2017-10, 2017-4 I.R.B. 544 (identifying syndicated conservation easements as listed transactions).
^[3] IRC § 170(f)(8); see Oakbrook, T.C. Memo. 2023-54 (strict compliance with acknowledgment requirement).
^[4] IRC § 170(f)(11) (qualified appraisal requirement); Treas. Reg. § 1.170A-13(c) (appraisal requirements for noncash contributions).
^[5] For related discussion of IRS enforcement trends, see our posts on proposed regulations on syndicated conservation easements and IRS basis shifting enforcement.