Conservation Easements on Farmland: The Tax Deduction and Its Risks

A conservation easement is one of the most powerful charitable deduction tools available to a farmer who owns land, and also one of the most heavily scrutinized. Done correctly on land a farmer directly owns and genuinely wants to preserve, it produces a deduction that can offset up to 100% of adjusted gross income in the donation year, with a 15-year carryforward for any unused balance. Done through a syndicated partnership that inflates the value of development rights on rural acreage, it is a listed transaction that the IRS has been winning in Tax Court for years and that Congress has now capped by statute. The gap between the legitimate tool and the abusive version is large, but the IRS applies scrutiny across the board, which means even a straightforward farmer-owned easement needs careful appraisal work and proper documentation to survive a challenge.

What’s a conservation easement, and how does it work?

A conservation easement is a legally binding agreement between a landowner and a qualified organization (typically a land trust or a government entity) that permanently restricts certain uses of the land while allowing others to continue. On farmland, the restriction almost always targets development rights: the right to subdivide, build residential or commercial structures, or convert the land to a non-agricultural use. The farmer retains ownership of the land and can continue to farm it, sell it, lease it, or pass it to heirs. The buyer of the land, whenever it is eventually sold, takes it subject to the same restrictions. The easement runs with the land in perpetuity.

The practical effect is that the farmer gives up the option to develop the land (or sell it to a developer) in exchange for a charitable deduction equal to the value of the rights surrendered. For farmland near a growing metropolitan area, where the development value might be substantial, the deduction can be very large. For farmland in a remote area where no developer would pay a premium over agricultural value, the deduction is small or zero because the development rights were not worth much to begin with.

The qualified organization that holds the easement has a legal obligation to enforce the restrictions. If a future owner of the land attempts to build a subdivision, the land trust can (and must) go to court to block the development. This enforcement obligation is why the IRS requires the recipient to be a qualified organization with a genuine commitment to conservation, not just a shell entity created for the transaction.

How does the charitable deduction under IRC 170(h) work?

To qualify as a deductible “qualified conservation contribution,” three requirements must be met under IRC 170(h).

First, the contribution must be of a “qualified real property interest.” A conservation easement, which is a restriction on the use of real property granted in perpetuity, fits this definition. A temporary restriction or one that expires after a fixed term does not.

Second, the contribution must be made to a “qualified organization.” This means a government entity (federal, state, or local) or a 501(c)(3) organization that has a commitment to protecting the conservation purposes of the donation and the resources to enforce the easement. Most land trusts that accept conservation easements are accredited through the Land Trust Alliance, which is not a legal requirement but a practical signal of organizational capacity.

Third, the contribution must be made “exclusively for conservation purposes.” The statute lists four qualifying purposes: preserving land for outdoor recreation or education by the general public, protecting a relatively natural habitat for fish, wildlife, or plants, preserving open space (including farmland and forest land) for scenic enjoyment or under a government conservation policy, and preserving a historically important land area or certified historic structure. Farmland easements typically qualify under the open-space or habitat preservation categories. The conservation purpose must be documented in the deed of easement, and the deed must prohibit uses inconsistent with that purpose.

The deduction equals the difference between the fair market value of the property before the easement and the fair market value after the easement. This is the “before-and-after” method. If a 200-acre parcel is worth $2,000,000 unencumbered and $1,200,000 with the easement restricting development, the deduction is $800,000. The after value reflects the land’s worth for continued agricultural use (and any other permitted uses under the easement terms), while the before value includes the development potential.

What’s the enhanced deduction for farmers and ranchers?

For most donors, the charitable deduction for appreciated property is limited to 30% of AGI in any single year (with a five-year carryforward). Conservation easements on capital-gain property donated by non-farmers follow this 30% limit.

Farmers get a significantly better deal. Under IRC 170(b)(1)(E), a “qualified farmer or rancher” can deduct a qualified conservation contribution up to 100% of the contribution base (effectively AGI) in the donation year. Any unused deduction carries forward for 15 years, not the standard five. This means a farmer with $250,000 of AGI who donates an $800,000 easement can deduct $250,000 in year one and carry the remaining $550,000 forward, deducting up to 100% of AGI each year until the carryforward is exhausted or 15 years pass, whichever comes first.

The definition of “qualified farmer or rancher” is a gross-income test, not an occupation test. The taxpayer’s gross income from the trade or business of farming must exceed 50% of total gross income for the taxable year in which the contribution is made. A farmer who also has a significant side business, rental portfolio, or investment income may fail this test even though farming is the primary occupation. The test is mechanical: add up gross farm income and compare it to total gross income.

This distinction has produced real disputes. In several Tax Court cases, taxpayers who described themselves as full-time farmers were denied the 100% AGI limit because their gross income from farming was less than half of total gross income. A farmer whose spouse has a high-salary job, or a farmer who sells a non-farm investment in the same year as the easement donation, can inadvertently fail the test. The planning response is to ensure the donation occurs in a year when farm gross income is high relative to other income, or to time non-farm income realizations outside the donation year.

What are the valuation requirements?

The deduction rests on a “qualified appraisal” by a “qualified appraiser” under IRC 170(f)(11). The appraisal must be performed no earlier than 60 days before the donation and no later than the due date (including extensions) of the return on which the deduction is first claimed.

A qualified appraiser must hold an appraisal designation from a recognized professional appraiser organization or meet minimum education and experience requirements, must be independent of the donor and the donee organization, and must demonstrate verifiable competency in valuing the type of property involved. For farmland easements, this means experience with agricultural and development-rights appraisals in the specific geographic area, not just a general real estate license.

The before-and-after method requires two valuations: the unencumbered fair market value and the encumbered fair market value. The difference is the charitable contribution. The IRS challenges valuations most often when the “before” value includes aggressive assumptions about development potential, for example, assuming a rural parcel 40 miles from the nearest city could support a dense residential subdivision commanding suburban land prices. Appraisers who use comparable sales of development-ready parcels near urban centers to value remote agricultural land tend to produce inflated “before” values, which inflates the deduction.

The IRS has a dedicated Conservation Easement Audit Techniques Guide that examiners use on audit, and the most common adjustment is to the before value. Farmers who donate easements on land with genuine, demonstrable development pressure (proximity to a growing town, existing zoning that permits subdivision, recent comparable sales of nearby land to developers) have the strongest position. Farmers whose land is deep rural with no realistic development market should expect a smaller deduction and should not inflate the appraisal to chase a bigger number.

What’s the syndicated conservation easement problem?

The IRS identified syndicated conservation easements as abusive tax shelters in Notice 2017-10, designating them as listed transactions. In a syndicated deal, a promoter forms a partnership or LLC, the entity acquires land (often at a modest price), an appraiser values the development rights at a multiple of the purchase price, the entity donates the easement, and the partners claim deductions that are 2.5 times or more their investment in the partnership. An investor who puts in $100,000 might claim a $400,000 deduction.

The IRS has won a long series of Tax Court cases challenging these arrangements, typically on the grounds of inflated valuation, failure to meet the perpetuity requirement, or defective deed language. Congress then enacted IRC 170(h)(7), added by the SECURE 2.0 Act in December 2022, which imposes a statutory cap: if a partnership donates a conservation easement and any partner’s claimed deduction exceeds 2.5 times that partner’s relevant basis in the partnership, the deduction above the 2.5x threshold is disallowed. A 40% penalty applies to the disallowed portion, and a 60% penalty applies if the transaction was not adequately disclosed.

Farmers who directly own their land and donate the easement themselves are not affected by the syndication rules. The 2.5x cap and the associated penalties apply specifically to easements donated by partnerships (or entities treated as partnerships for tax purposes). A sole proprietor or a married couple who donate an easement on their own farm are claiming a deduction based on the appraised value of their own land, not a deduction manufactured through a promoted partnership structure. The distinction matters because the IRS’s enforcement focus on syndicated deals has created a general climate of suspicion around conservation easement deductions, even the legitimate ones. A farmer donating directly should expect the IRS to look carefully at the appraisal but should not be deterred by the syndication headlines.

What to consider before donating a conservation easement?

The easement is permanent. This is both the legal requirement for the deduction and the practical reality the farmer must live with. The restriction runs with the land in perpetuity, meaning it binds not only the current owner but every future owner. A farmer who donates an easement and later wants to sell to a developer cannot undo the restriction. A farmer’s heirs who inherit the land cannot remove the easement. If the farmer’s children want to subdivide the family farm into residential lots in 20 years, the easement prevents that.

This permanence is the feature, not a bug, from the conservation perspective. It is also the reason the deduction is generous: the farmer is giving up something real and irrevocable. But it means the decision should not be driven by a single year’s tax bill. A farmer who expects the land will be worth far more as development property in the future is giving up real future value, and the deduction compensates based on today’s value, not tomorrow’s.

The easement may or may not reduce the property’s resale value in practice. If the land is in a rural area where development pressure is minimal, the easement restricts a right that was not going to be exercised anyway, and the agricultural value of the land is unchanged. Resale value to another farmer is largely unaffected. If the land is on the edge of a growing suburb, the easement removes the development premium, and the resale value drops by roughly the amount of the deduction. The farmer has already been compensated for that loss through the tax savings, but the point is that the deduction is not free money; it is compensation for a real surrender of value.

If there is an existing mortgage on the land, the lender must subordinate its interest to the easement. A lender that forecloses on the mortgage takes the land subject to the easement, which means the lender’s collateral is worth less. Most farm lenders will cooperate if the farmer explains the arrangement in advance, but the subordination must be documented before the donation closes. Without it, the deduction fails the perpetuity requirement because the lender could theoretically extinguish the easement through foreclosure.

How do conservation easements interact with estate planning?

Conservation easements can reduce the value of farmland for estate tax purposes as well. If a farmer donates an easement during life, the encumbered value (the lower, after-easement value) is the value included in the estate, which reduces estate tax for estates above the exemption threshold. Additionally, IRC 2031(c) provides an additional estate tax exclusion of up to 40% of the value of land subject to a qualified conservation easement, subject to a $500,000 cap. This means a farm family can combine the lifetime income tax deduction with an estate tax reduction, doubling the benefit across generations.

For farmers engaged in broader estate planning and succession, the conservation easement fits into a larger strategy that includes the special-use valuation under IRC 2032A (which values farm property at its agricultural value rather than highest-and-best-use value for estate tax purposes), installment payment of estate tax under IRC 6166, and family entity structuring. The easement reduces the starting value; the special-use election further reduces it; and the installment election spreads whatever tax remains over 14 years. Used together, these tools can keep a working farm from being sold to pay estate taxes.

What records and documentation does the farmer need?

The documentation requirements are not optional. The IRS denies deductions for technical failures in the paperwork, even when the underlying contribution is genuine.

The deed of easement must identify the conservation purpose, describe the restricted and permitted uses in detail, include a baseline documentation report (photographs, maps, ecological surveys, descriptions of the land’s condition at the time of the donation), and run in perpetuity. The baseline report is particularly important because it establishes the starting condition against which future compliance is measured.

The qualified appraisal must be attached to the tax return (Form 8283, Section B, for noncash charitable contributions exceeding $5,000). The donee organization must sign Form 8283 acknowledging receipt of the contribution. The appraisal itself must satisfy the requirements of Reg. 1.170A-17, including the appraiser’s qualifications, the valuation methodology, the date of the appraisal, and the specific property being valued.

Farmers should also retain records of any negotiations with the land trust, the lender’s subordination agreement, and any correspondence with the IRS if the deduction is questioned. Given the current enforcement climate, treating the documentation as if an audit is inevitable (rather than merely possible) is the practical approach.

What should I do next?

A conservation easement on farmland is a decision that should be made for reasons that extend beyond the tax deduction: preserving the land for agriculture, protecting habitat, honoring a family’s connection to the property. The deduction makes the decision less costly, and for a qualified farmer or rancher, the 100% of AGI limit with a 15-year carryforward makes it genuinely generous. But the permanence of the restriction, the appraisal risks, and the documentation requirements mean this is not a form to fill out on April 14.

If you are considering an easement, the sequence is: identify a qualified land trust in your area, get an independent qualified appraisal from an appraiser experienced in agricultural and development-rights valuations in your region, confirm that your gross farm income exceeds 50% of total gross income in the donation year (or plan the timing so it does), ensure any mortgage lender will subordinate, and work with a tax advisor who has handled conservation easement returns and understands the audit exposure.

• Farm estate planning and succession under IRC 2032A, the broader estate tax tools that pair with a conservation easement
• Schedule F income and expenses guide, the annual farm return that establishes the gross-income figures for the 50% test
• Farm income averaging with Schedule J, the income-smoothing election that can be used alongside an easement deduction in a high-income year
• Farm equipment depreciation, Section 179, and bonus depreciation, the depreciation strategies that interact with the AGI limit for the easement deduction

Related guides:

• Farm Commodity Hedging Futures Tax Treatment
• Farm Crop Insurance Disaster Payments Tax
• Farm Equipment Depreciation Section 179 Bonus
• Farm Estate Planning Succession Irc 2032A
• Farm Ethanol Biodiesel Renewable Energy Tax Credits

Related guides:

• Conservation Easements: How Land Preservation Can Produce Significant Tax Deductions (and the IRS Crackdown)

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.