The U.S. Tax Court on September 23, 2025 threw out most of a $38 million charitable deduction claimed by two related partnerships, Jackson Stone North LLC and Jackson Stone South LLC, over conservation easements on Georgia land. In T.C. Memo. 2025-96, the court found the properties were worth a small fraction of what the partnerships claimed and upheld 40% penalties for gross valuation misstatement, the latest in a long string of losses for the syndicated conservation easement industry, as detailed in a case summary from Current Federal Tax Developments.
What changed
The two partnerships donated easements over roughly 541 combined acres to a land trust in 2016, then claimed deductions of about $19 million apiece based on an appraiser's opinion that the land's highest and best use was granite mining. The Tax Court rejected that premise outright: the land was zoned agricultural, rezoning for mining was not "reasonably probable," and the appraiser's income-approach model relied on speculative production and pricing assumptions in an already oversupplied local granite market. For Jackson Stone South, the court instead used a sales-comparison approach based on actual rural land sales and landed on $405,000, about 2% of the claimed figure. For Jackson Stone North, the easement failed baseline documentation and conservation-purpose requirements under the Treasury regulations, so the court disallowed the deduction in full.
Who is affected
The ruling lands squarely on investors who bought into syndicated conservation easement partnerships, an investment structure the IRS has targeted for more than a decade because it often pairs an inflated appraisal with a multiple of the deduction relative to the cash invested. High-income taxpayers were the typical buyers: the deductions are large enough to offset ordinary income only for someone already paying tax at the top marginal rate. Anyone who invested in either Jackson Stone entity, or a similar deal marketed through the same promoters, now faces a recomputed tax bill plus penalties, and the decision reinforces the IRS's playbook for challenging other pending easement cases with comparable fact patterns.
The after-tax math
Example: a household in the 37% federal bracket invests $400,000 in a syndicated partnership and is allocated a $4 million share of the claimed easement deduction, roughly the multiple these deals were built around. Assuming the deduction were valid, it would shelter about $1.48 million of tax at the top rate. If the IRS instead prevails with a result resembling Jackson Stone South, the sustainable deduction might be closer to $40,000, worth about $14,800 in tax savings. The taxpayer now owes back the difference, roughly $1.46 million, plus a 40% penalty on the disallowed portion because the claimed value exceeded 200% of the correct value, the statutory trigger for the gross valuation misstatement penalty under Section 6662(h). Interest accrues from the original filing date, so a case resolved years after the return was filed can add a substantial amount on top of the recomputed tax.
| Item | As claimed | As sustained (Jackson Stone South pattern) |
|---|---|---|
| Easement value | $4,000,000 (example) | ~$40,000 |
| Tax benefit at 37% | $1,480,000 | $14,800 |
| Penalty exposure | — | 40% of underpayment |
What to watch
The IRS has separately been offering time-limited settlements to resolve the large backlog of syndicated easement cases without full litigation, and rulings like this one strengthen the government's negotiating position by showing courts are willing to reduce values by 90% or more and sustain the top penalty tier. Taxpayers with open easement deductions, or with K-1s reporting a share of one, may want to have a CPA or tax attorney review the appraisal methodology and baseline documentation now rather than wait for an exam. Genuine, non-syndicated conservation gifts are unaffected by this trend as long as the appraisal reflects a realistic highest-and-best-use analysis and the deed meets the technical perpetuity and baseline requirements the court cited here.
Why appraisals keep failing in court
A recurring theme in these cases is the gap between an appraiser's income-approach model and what buyers actually pay for comparable land. Courts have repeatedly favored the sales-comparison method, which looks at real transactions for similar rural parcels, over discounted cash-flow projections built on a use, such as mining, quarrying or high-density development, that was never permitted and never pursued. For a family considering a legitimate conservation gift on farmland, ranchland or a scenic parcel, the practical lesson is to commission an appraisal grounded in comparable sales rather than a hypothetical redevelopment scenario, and to have counsel confirm the deed's conservation-purpose language and baseline report meet the current regulatory checklist before the gift is recorded. Congress also added a new limit in recent years capping the deduction for many partnership-donated easements at 2.5 times the partners' basis in the property, a rule aimed directly at this class of transaction, though it does not apply retroactively to the 2016 gifts at issue in this case.
Sources
- First reported Tax Court Again Not Impressed With a Syndicated Conservation Easement Transaction — Current Federal Tax Developments
- U.S. Tax Court Slashes Conservation Easement Valuation, Upholds IRS Penalty — Bloomberg Tax
- Partnerships Overvalued Conservation Easements; Penalties Apply — Tax Notes
- Final regs. target syndicated conservation easement transactions — Journal of Accountancy (AICPA)
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