The IRS has issued proposed regulations that would formally designate syndicated conservation easement transactions as listed transactions—the most serious classification in the Service’s tax shelter reporting regime. The proposed regulations follow years of aggressive IRS enforcement action against these arrangements and come in the wake of the Supreme Court’s decision to vacate the Sixth Circuit’s ruling in Mann Construction, which had struck down the earlier IRS notice identifying these transactions as listed transactions on procedural grounds. The proposed regulations address the procedural deficiency identified by the courts by going through the formal notice-and-comment rulemaking process required by the Administrative Procedure Act.^[1]

What Is a Syndicated Conservation Easement Transaction?

A syndicated conservation easement transaction typically involves a promoter who acquires or controls a parcel of land, obtains an appraisal valuing the conservation easement at a substantial multiple of the land’s purchase price, and then offers interests in the transaction to investors through a pass-through entity (usually a partnership or LLC). The investors contribute capital to the entity, the entity donates the conservation easement to a qualified land trust, and the investors claim charitable deductions based on their share of the inflated appraised value. The deduction typically equals 2.5 times or more the investor’s actual investment—a ratio that the IRS considers indicative of an abusive tax shelter.

The economics of these transactions depend entirely on the charitable deduction. The investors have no meaningful economic interest in the land itself; their return comes from the tax savings generated by the deduction. The promoter profits from fees charged to the investors and from the spread between the land’s cost and the inflated appraised value. The conservation purpose—protecting ecologically or historically significant land from development—is, in the IRS’s view, incidental to the tax avoidance purpose that drives these arrangements.^[2]

The Regulatory History

The IRS first identified syndicated conservation easement transactions as listed transactions in Notice 2017-10, which described the transaction and required participants and material advisors to disclose their involvement. The listed transaction designation triggered significant reporting obligations: taxpayers who participated in the identified transaction were required to file Form 8886 (Reportable Transaction Disclosure Statement), and material advisors were required to maintain investor lists and file Form 8918 (Material Advisor Disclosure Statement). Failure to comply with these disclosure requirements carries substantial penalties.

The Mann Construction litigation challenged Notice 2017-10 on the ground that it was issued without the notice-and-comment rulemaking required by the Administrative Procedure Act for legislative rules. The Sixth Circuit agreed, holding that the notice was a legislative rule that required APA rulemaking, and struck it down. The Supreme Court subsequently vacated the Sixth Circuit’s decision for reconsideration in light of its decision in CIC Services v. IRS, but the procedural vulnerability of the notice-based approach was clear. The proposed regulations address that vulnerability by following the formal APA rulemaking process.^[3]

What the Proposed Regulations Provide

The proposed regulations identify as listed transactions any transaction in which a taxpayer receives a charitable deduction for a conservation easement that exceeds 2.5 times the taxpayer’s investment in the pass-through entity. This threshold is the same as the one used in Notice 2017-10. The regulations also identify as a listed transaction any transaction that is substantially similar to the described transaction.

Once finalized, the regulations will reimpose the disclosure requirements that were temporarily disrupted by the Mann Construction litigation. Taxpayers who participated in syndicated conservation easement transactions will be required to disclose their participation, and material advisors will be required to maintain investor lists and file disclosure statements. The penalties for failure to disclose are severe: $10,000 per failure for individuals and $50,000 per failure for other entities, plus potential accuracy-related penalties of 20% to 40% on any underpayment attributable to the listed transaction.

What Taxpayers Should Do

For taxpayers who have participated in syndicated conservation easement transactions, the proposed regulations reinforce the urgency of evaluating their positions and considering their options. The IRS has been litigating these cases aggressively, and the Tax Court has consistently sided with the IRS in denying deductions for syndicated easement transactions that lack economic substance or involve inflated appraisals. The court’s analysis typically focuses on whether the appraised value of the easement is supportable and whether the transaction had a genuine non-tax purpose.

Taxpayers who have not yet been examined should consider whether voluntary disclosure or an amended return filing is appropriate. The IRS has periodically offered settlement terms to taxpayers with pending conservation easement cases, and the terms have generally been more favorable for early resolution than for taxpayers who litigate through trial. However, the settlement terms require concession of the deduction and payment of tax, plus a negotiated penalty amount, so the decision to settle is not without cost.

For taxpayers who are currently under examination or in Tax Court litigation, the proposed regulations do not change the substantive legal analysis—the IRS was already challenging these deductions on valuation, economic substance, and partnership anti-abuse grounds. But the finalization of the listed transaction designation will impose additional disclosure obligations and may affect the penalty analysis, particularly the reasonable cause defense for taxpayers who relied on the Mann Construction decision to argue that disclosure was not required.

For advisors and promoters, the proposed regulations are a clear signal that the IRS considers syndicated conservation easement transactions to be among its highest enforcement priorities. The material advisor disclosure requirements and investor list maintenance obligations will be reimposed once the regulations are finalized, and the penalties for non-compliance are substantial.^[4]