The deduction equals the FMV of the land before the easement minus the FMV after. For a genuine personal easement — family land permanently protected, donated to a qualified land trust, with an honest appraisal — the deduction can be transformational and the conservation outcome is real. For syndicated easements with 5x-10x markup over partnership cost basis, the deduction is a tax-shelter scheme. The IRS knows the difference. This tool estimates the deduction and flags the audit-risk profile before you sign anything.
The deduction requires a qualified conservation purpose: outdoor recreation, natural-habitat protection, open space (including farmland and forest), or historic preservation. Mission must be documented and the easement must be in perpetuity.
Syndicated conservation easements — where investors buy partnership units, the partnership donates an easement valued at 5x-10x the contributed capital, and investors get pass-through deductions — are listed transactions under IRS Notice 2017-10. Any deduction over $250,000 from a syndicated transaction requires Form 8886 disclosure with the return. Failure to disclose triggers a $200,000 penalty for individuals (50% of the deduction claimed, max $200K).
The IRS has prevailed in nearly every syndicated-easement case it has litigated since 2017. Tax Court has disallowed deductions, imposed gross-valuation-misstatement penalties (40% of underpayment), and in some cases, criminal referrals followed. If your easement is being marketed to you with a multiplier ratio (e.g., "4-to-1 deduction") or a partnership/LLC syndication structure, you should stop and get independent counsel before signing anything.
The deduction equals before-easement FMV minus after-easement FMV. Both numbers must come from a qualified appraisal by an appraiser meeting §170(f)(11) standards. The appraisal is the audit battleground.
Personal easement (donor owns the land, donates the easement) is the defensible structure. Syndicated easement (investors buy into a partnership that owns the land) is the high-risk structure.
The audit-risk score below is built from the inputs you've already provided. This is not a substitute for tax counsel review — it's a first-pass triage before you commit.
Deduction estimate, multi-year usage projection, audit-risk score, and the disqualifier checks Tax Court applies most often.
The Institute publishes practitioner reference. No signup, no email capture, no sales call. If your easement is genuine and well-structured, your next call is to an estate planning attorney + qualified appraiser — not us. If the deal you're being shown is a syndicated easement marketed by a promoter, your next call is to independent tax counsel before you sign anything.
Listed-transaction notice. Conservation easements — especially syndicated conservation easement transactions — are among the highest-audit-rate deductions in the Internal Revenue Code. Notice 2017-10 designates syndicated conservation easement transactions with profit ratios of 2.5x or greater as "listed transactions." Any participant claiming a deduction of $250,000 or more from a listed transaction must file Form 8886 with their return; failure to disclose triggers a penalty of 75% of the decrease in tax shown (capped at $200,000 for individuals / $50,000 for entities) under IRC §6707A. Material advisors face additional penalties under IRC §6707 / §6708.
IRS litigation success rate. The IRS has prevailed in the substantial majority of syndicated conservation easement cases litigated in Tax Court since Notice 2017-10. Deductions have been disallowed in full; 40% gross-valuation-misstatement penalties under IRC §6662(h) have been imposed; in some cases, criminal referrals have followed promoter conduct.
Educational and informational purposes only. This calculator and any output it produces are intended solely for general educational and decision-support purposes and do not constitute investment, tax, legal, accounting, or appraisal advice. Treasury Reg §1.170A-14 governs the substantive easement requirements; §170(f)(11) and Treasury Reg §1.170A-17 govern the qualified appraisal requirement. State conservation easement law and recording requirements vary materially.
Required professional team. Do not execute a conservation easement transaction without (a) an estate planning attorney experienced in §170(h) easement design, (b) a qualified conservation-specialty appraiser meeting §170(f)(11) requirements, and (c) for any syndicated or promoter-arranged structure, an independent second-opinion-of-counsel from tax counsel not affiliated with the promoter.
Co-branded versions: If a professional advisor's name and contact information appear on this tool, that advisor has elected to make the tool available to clients as a courtesy. The disclaimer above applies regardless of co-branding. This is not financial, tax, or legal advice.