Conservation Easement Tax Deduction — Qualified Conservation Contributions Under § 170(h)
A landowner who permanently restricts their property — agreeing never to develop it, subdivide it, or alter its natural character — can claim a federal charitable deduction equal to the reduction in the property's value caused by that restriction. This is the conservation easement deduction under Section 170(h) of the Internal Revenue Code: a tax incentive designed to encourage voluntary protection of natural habitats, agricultural land, scenic open space, and historic structures without government purchase. The property owner donates the development rights to a qualified land trust or government entity, receives a deduction for the value lost, and retains ownership and use of the land. Congress created special rules for conservation easements — a 50% of AGI deduction limit (higher than ordinary charitable gifts), a 15-year carryforward for excess deductions, and a 100% of AGI limit for qualifying farmers and ranchers — because the public benefit is substantial and permanent. The same provision has also been heavily abused: "syndicated conservation easements," in which promoters acquire land, obtain inflated appraisals claiming massive development value, and sell partnership interests to investors seeking deductions worth many multiples of their investment, have been designated "listed transactions" by the IRS and are the subject of active litigation, legislation, and thousands of audits.
Current Law (2026)
| Parameter | Value |
|---|---|
| Core statute | 26 U.S.C. § 170(h) |
| Type of contribution | Donation of a "qualified real property interest" to a "qualified organization" exclusively for "conservation purposes" |
| Deduction base | Reduction in fair market value of property caused by the easement restriction (pre-easement FMV minus post-easement FMV) |
| AGI limit | 50% of contribution base (AGI) for most taxpayers; reduced by regular charitable deductions |
| Farmer/rancher exception | 100% of AGI if the taxpayer's farm/ranch gross income exceeds 50% of total gross income, and the restricted land remains available for agriculture |
| Carryforward | Excess deduction carries forward 15 years (vs. 5 years for ordinary donations) |
| Appraisal requirement | Qualified appraisal by a qualified appraiser completed no earlier than 60 days before donation and no later than tax return due date |
| Form 8283 | Required for donated property (including easements) over $500; for easements over $5,000, must attach qualified appraisal summary and sign with appraiser |
| Syndicated easements | IRS lists them as "listed transactions" (Notice 2017-10 and § 6011 regulations); Form 8886 disclosure required; substantial understatement penalties apply |
| Conservation purpose requirement | Must protect (1) natural habitat, (2) scenic/open space in consistent public benefit, (3) land preservation for public recreation/education, or (4) historic land areas or certified historic structures |
Legal Authority
- 26 U.S.C. § 170(h)(1) — Qualified conservation contribution: a contribution (i) of a qualified real property interest, (ii) to a qualified organization, (iii) exclusively for conservation purposes; these three elements are conjunctive — failure of any one disqualifies the deduction
- 26 U.S.C. § 170(h)(2) — Qualified real property interest: (A) the donor's entire interest in the property (other than certain mineral interests), (B) a remainder interest, or (C) a restriction (granted in perpetuity) on the use of the property — this third category is the typical conservation easement, a permanent deed restriction preventing development
- 26 U.S.C. § 170(h)(3) — Qualified organization: a governmental unit, or a publicly supported charitable organization that has a commitment to protect the conservation purposes of the donation and the resources to enforce the restrictions; in practice, this means IRS-qualified land trusts (like The Nature Conservancy, local land trusts) and government entities
- 26 U.S.C. § 170(h)(4) — Conservation purpose: (A) preservation of land for public recreation or education; (B) protection of natural habitat of fish, wildlife, or plants; (C) preservation of open space (including farmland and forest) pursuant to a clearly delineated governmental conservation policy and yielding significant public benefit, or for the scenic enjoyment of the general public; or (D) preservation of a historically important land area or certified historic structure
- 26 U.S.C. § 170(h)(5) — In perpetuity requirement: the conservation purpose must be protected in perpetuity; a contribution where the restriction could be extinguished by the landowner does not qualify; the qualified organization must have a perpetual obligation to enforce the restriction
- 26 U.S.C. § 170(b)(1)(E) — Special deduction limit: qualified conservation contributions are deductible up to 50% of the taxpayer's contribution base (AGI), with a 15-year carryforward; for farmers and ranchers (gross farm income > 50% of total gross income) whose land is subject to agricultural-use restrictions, the limit is 100% of AGI
How Conservation Easements Work
A conservation easement is a legal agreement — recorded in the deed records — that permanently restricts what a landowner can do with their property. In exchange for giving up development rights, the landowner receives a charitable deduction equal to the easement's value: what the property was worth unrestricted minus what it is worth with the restrictions in place.
Valuation is everything: A 500-acre farm in a rural county where agricultural use is the highest and best use may have minimal development value — the easement might be worth $5,000 per acre. The same 500 acres on the edge of a growing metropolitan area where residential subdivision is legally possible might be worth $50,000 per acre in development rights. The conservation easement deduction depends entirely on the qualified appraisal, and the IRS intensely scrutinizes appraisals in conservation easement cases.
The qualified appraisal process: The IRS requires a "qualified appraisal" by a "qualified appraiser" — a licensed appraiser with demonstrated conservation easement experience, no financial interest in the transaction, and no relationship to the donor. The appraisal must be completed after the easement is donated and before the tax return due date (including extensions). The appraiser must use the before/after method — value the property in its highest and best use before the easement, then value it subject to the restriction, and the difference is the easement value.
What gets restricted: The restriction is permanently recorded in the deed. A typical agricultural conservation easement restricts residential or commercial development, subdivision (usually beyond a specified number of lots for family transfers), and industrial use, while allowing continued farming, some hunting and recreation, and even limited agricultural structures. An open-space easement near a city might prohibit any development but allow existing uses. A historic facade easement restricts exterior alterations to a historic building.
The Syndicated Conservation Easement Problem
Starting in the 2010s, a large tax shelter industry developed around conservation easements. The pattern: a promoter identifies land with potentially high development value (rural land near growing cities, timberland in areas rezoned for recreation), acquires it or takes an option, creates a partnership, sells interests in the partnership to investors (typically at $1 of investment per $4–5 of claimed deduction), donates an easement, obtains an appraisal claiming the development value was enormous, and passes the deduction through to investors.
The IRS identified these "syndicated conservation easements" as a "listed transaction" in Notice 2017-10, meaning they are presumptively abusive tax shelters that must be disclosed on Form 8886. Participants face enhanced penalties (40% gross valuation misstatement penalty if the deduction is disallowed) and potential accuracy-related penalties. The Tax Court has ruled against taxpayers in dozens of syndicated easement cases, frequently finding that:
- The appraisals dramatically overstated development potential
- The "highest and best use" claims were unrealistic or legally impossible
- The partnership's conservation purpose was not genuine
Congress enacted § 170(h)(7) in the Inflation Reduction Act of 2022, which strictly limits conservation easement deductions for "syndicated conservation easement transactions" (partnerships where the deduction exceeds 2.5× the amount investors paid). This provision significantly restricted the shelter after years of litigation.
How It Affects You
If you own land with development potential and conservation value: A genuine conservation easement can be an excellent estate planning and tax tool — but it requires real permanence and real conservation value. Get an independent appraisal before proceeding, work with an established land trust (look for Land Trust Alliance accreditation), and avoid any promoter who promises a specific deduction-to-investment ratio. A well-executed easement on legitimate conservation land provides meaningful tax benefits, local tax assessment reductions in many states, and the satisfaction of permanent land protection. Work with tax counsel familiar with the § 170(h) requirements and appraisal standards.
If you own a historic building in a historic district: Facade easements — donating the right to maintain and control a historic building's exterior to a qualified preservation organization — are a recognized use of the conservation easement deduction. The deduction value is the reduction in the building's value caused by the preservation restriction. These have been heavily litigated because promoters marketed facade easements with inflated deductions, particularly for historic buildings in cities. Legitimate facade easements for buildings in certified historic districts with genuine preservation value still qualify, but appraisals must reflect actual market impacts and the charitable organization must actively enforce the restriction.
If you received a K-1 from a partnership offering large conservation easement deductions: If your deduction exceeds 2.5× your investment amount, you are in a transaction that may be treated as a syndicated conservation easement transaction under § 170(h)(7) or the pre-2022 listed transaction rules. Consult a tax attorney before claiming the deduction — the penalties for participating in a listed transaction without disclosure are substantial, and the deduction itself is at high audit risk. The IRS has thousands of open examinations of syndicated easement cases.
If you're a farmer or rancher considering a conservation easement: The 100% of AGI deduction limit for conservation easements on working agricultural land is specifically designed for your situation. If you donate a qualifying easement that keeps your family farm in agricultural use permanently, you can deduct the full appraised easement value against all of your income in the donation year — and carry forward any excess for 15 years. The restriction must require the land to remain available for agricultural production; a purely open-space easement without an explicit agricultural restriction does not qualify for the enhanced limit. Combined with § 2032A special use valuation (which can reduce estate tax on farm property) and careful family business planning, conservation easements are among the most powerful tax tools available to agricultural landowners — but they require a qualified appraisal, a qualified conservation organization as the easement holder, and precise drafting to survive IRS scrutiny.
State Variations
Most states provide some form of state income tax credit or deduction for conservation easements, often in addition to the federal deduction. Virginia has one of the most generous — a 40% state income tax credit on the value of donated easements, transferable to other taxpayers. Colorado, North Carolina, and South Carolina also have significant state programs. Some states provide property tax reductions for land subject to conservation easements. The combination of federal deduction and state tax credit can make a genuine conservation easement particularly economically attractive in participating states.
Pending Legislation
The 2022 Inflation Reduction Act's § 170(h)(7) restriction on syndicated conservation easement deductions represented the most significant change to conservation easement law in decades. Further tightening — including stricter appraisal standards, required independent review, and enhanced penalties for appraisers who overstated values — has been proposed in various forms. The IRS announced in 2024 that it has collected over $10 billion in additional taxes from syndicated conservation easement audits. Land conservation advocates have proposed increasing the deduction limits or creating a refundable credit for lower-income landowners who cannot use large deductions.
Recent Developments
The Tax Court issued major decisions in 2022–2025 invalidating hundreds of syndicated conservation easement transactions, often finding the appraisals unreliable and the claimed development scenarios speculative. The IRS Office of Chief Counsel has issued coordinated issue papers standardizing the agency's litigation position. Congress's enactment of § 170(h)(7) in 2022 effectively ended new syndicated conservation easement shelters prospectively. The IRS has also intensified review of facade easements and has won several cases disallowing deductions where the preservation organization failed to enforce the restrictions or where the claimed reduction in property value was not supported by arms-length sales data.