Conservation Easements: Legitimate Tax Benefits and IRS Scrutiny

How the Deduction Works

IRC §170(h) allows a deduction for a “qualified conservation contribution”: a contribution of a qualified real property interest, such as a perpetual restriction on the use of land, to a qualified organization exclusively for conservation purposes. The landowner keeps ownership of the land but gives up the restricted rights, such as the right to subdivide or develop.

The value of an easement is usually measured by comparing the fair market value of the property before and after the easement is granted. For example, if land is worth $5 million before the easement and $3 million after it, the easement is generally worth $2 million. Adjustments can be required if the easement increases the value of other property owned by the donor or a related person.

Core Requirements

Conservation purpose

The easement must serve at least one purpose listed in §170(h)(4): preserving land for outdoor recreation by, or education of, the general public; protecting a relatively natural habitat of fish, wildlife, or plants; preserving open space, including farmland and forest land, for the scenic enjoyment of the public or under a clearly delineated governmental conservation policy, where it yields a significant public benefit; or preserving a historically important land area or a certified historic structure.

Qualified organization

The easement must be given to a qualifying governmental unit or charitable organization, such as an established land trust, that can hold and enforce it.

Perpetuity

The restriction and its conservation purpose must be protected in perpetuity. The regulations address, among other things, mortgage subordination, the donee’s share of proceeds if the easement is ever extinguished, and documentation of the property’s condition at the time of the gift. Courts have disallowed deductions because deed provisions did not meet these requirements.

Substantiation

The donor needs a contemporaneous written acknowledgment from the donee and a qualified appraisal prepared by a qualified appraiser, and must report the gift on Form 8283. When the deduction claimed exceeds $500,000, the qualified appraisal must be attached to the return.

Deduction Limits

For individuals, qualified conservation contributions are generally deductible up to 50% of the contribution base, or 100% for qualified farmers and ranchers in certain cases. Amounts above the limit can be carried forward for up to 15 years.

Valuation and Penalties

Easement valuations are closely examined. A 20% accuracy-related penalty applies if the value claimed is 150% or more of the correct value, and a 40% penalty applies if it is 200% or more. For example, if a taxpayer claims a $10 million easement and the correct value is $4 million, the claimed value is 250% of the correct amount, and the 40% penalty applies to the resulting underpayment.

For donated property, the usual reasonable cause defense is not available for a gross valuation misstatement. For a substantial valuation misstatement, it is available only if the claimed value was based on a qualified appraisal by a qualified appraiser and the taxpayer also made a good faith investigation of the property’s value.

Syndicated Conservation Easements

Some promoters have offered investors interests in partnerships that donate easements, with promotional materials suggesting deductions of several times the amount invested. Final regulations published October 8, 2024 (Treasury Regulation §1.6011-9) identify syndicated conservation easement transactions in which the promised deduction is at least 2.5 times the investment as listed transactions, which must be disclosed on Form 8886. An earlier IRS notice on the same subject was set aside by the Tax Court in Green Valley Investors, LLC v. Commissioner, 159 T.C. No. 5 (2022), because it had been issued without notice-and-comment procedures.

Separately, legislation enacted in December 2022 added §170(h)(7). Subject to limited exceptions, a contribution by a partnership or S corporation is not a qualified conservation contribution if it exceeds 2.5 times the sum of the owners’ relevant basis. A deduction disallowed under this rule is subject to the 40% penalty, and the reasonable cause defense does not apply.

Practical Considerations

Landowners considering an easement should confirm that the land has genuine conservation value, work with an established land trust, have the deed reviewed against the perpetuity requirements, and use an independent qualified appraiser who relies on market evidence. Because the restriction is permanent, the non-tax consequences for the land and the family deserve equal weight.

The Bottom Line

A carefully documented conservation easement can protect land and support a charitable deduction. Arrangements built around large deductions relative to investment face listed-transaction reporting, statutory limits, and strict penalties.