Land Donation Tax Deduction: AGI Limits, Appraisals, and Form 8283

A land donation tax deduction lets you deduct the fair market value of land, or of a permanent conservation easement on land, that you give to a qualifying charity. The deduction is capped at 50% of your adjusted gross income in any single year, with any unused amount carrying forward for up to 15 years. Qualified farmers and ranchers can deduct up to 100% of AGI. You must itemize on Schedule A to use it, and the gift has to satisfy every requirement in Internal Revenue Code Section 170(h); miss one and the deduction disappears entirely.¹

What You Can Donate and Who Can Receive It

The deduction is only available for a “qualified conservation contribution.” That means three things must line up: a qualifying property interest, a qualifying recipient, and a recognized conservation purpose that is protected in perpetuity.¹

The property interest can take one of three forms. A fee simple gift transfers the whole property outright. A remainder interest lets you keep using the land for life while the charity takes full ownership afterward. The most common structure is a perpetual conservation easement: you keep ownership, but you permanently restrict how the land can be developed, and that restriction binds every future owner.

The recipient has to be either a governmental unit or a 501(c)(3) organization that also meets Section 509(a)(2) or 509(a)(3). In practice this almost always means a land trust. The organization must have the resources to monitor and enforce the restrictions over time. Accreditation by the Land Trust Accreditation Commission is not legally required, but working with an accredited land trust reduces the risk that an enforcement failure years from now undermines your deduction in an audit.

The conservation purpose has to be one of four:

Preserving land for public outdoor recreation or education.
Protecting the natural habitat of fish, wildlife, plants, or a similar ecosystem.
Preserving historically important land areas or certified historic structures.
Preserving open space (including farmland and forest land) for scenic enjoyment or under a government conservation policy, where the gift yields a significant public benefit.

The “significant public benefit” test matters most for open-space gifts. The IRS looks at whether the public can see or access the land, whether the gift fits into a broader conservation plan, and whether development would harm the surrounding area. An easement on hidden land with no connection to any government program draws real scrutiny.¹

How Much You Can Deduct Each Year

Qualified conservation contributions get a more generous AGI limit than most other gifts of appreciated property. The usual 30% cap for capital gain property does not apply; conservation contributions have their own rule under Section 170(b)(1)(E).¹

The 50% AGI Limit for Most Donors

For most individual taxpayers, the deduction in any single year cannot exceed 50% of AGI, reduced by other charitable contributions claimed that year. On a $200,000 AGI with no other charitable gifts, you can deduct up to $100,000 of the conservation contribution for the year even if the easement is appraised much higher.

The 100% AGI Limit for Qualified Farmers and Ranchers

If more than 50% of your gross income for the year comes from farming, you qualify as a “qualified farmer or rancher” and the limit rises to 100% of AGI. The donation can effectively zero out your federal income tax for the year. One condition: if the donated land is used in agriculture or livestock production, the easement itself must require that the land remain available for agricultural use. Without that restriction, the 100% limit does not apply.¹

The 15-Year Carryover

Whatever you cannot deduct in the gift year carries forward for up to 15 succeeding tax years. That is three times the standard five-year carryover for other charitable gifts. A $1 million easement from someone with a $200,000 AGI has 16 years total (the donation year plus 15) to absorb the full deduction. In each carryover year, the same AGI percentage limit applies to the remaining balance. Anything still unused after year 15 is lost. Track the carryover on every return.

How the Deduction Amount Is Set

Your deduction equals the fair market value of the property interest you donate. Most disputes with the IRS start here, so the rules around how that value is proven are strict.

The Qualified Appraisal

You need a qualified appraisal prepared by a qualified appraiser following the Uniform Standards of Professional Appraisal Practice. The effective date of the appraisal must fall no earlier than 60 days before the donation date, and the appraisal must be completed by the due date of your return, including extensions. The appraiser must have verifiable education and experience in the specific type of property, regularly appraise for compensation, and not be barred from practice before the IRS. An appraiser who mostly handles residential homes is not qualified to value a 500-acre agricultural easement.¹

Fee Simple Versus Easement Valuation

For a fee simple gift of the whole property, fair market value is what a willing buyer would pay a willing seller, based on the property’s highest and best use at the time of donation rather than how you happen to be using it.

For a conservation easement, the IRS generally requires the “before and after” method. The appraiser finds the fair market value of the whole property without the easement, then the value with the permanent restrictions in place. The difference is the deduction. If a market of comparable easement sales exists, those can be used instead, but such a market rarely does. If the easement does not actually restrict much, the deduction will be small or zero.²

The Enhancement Rule

If the easement increases the value of other property you or a related person owns, the deduction must be reduced by that increase. The regulations tell the appraiser to look at the entire contiguous tract owned by you and your family when running the before-and-after. Preserving a scenic buffer that makes your adjacent homesites more valuable creates an enhancement that gets subtracted. Your appraisal must address enhancement directly; ignoring it is one of the fastest ways to lose the entire deduction on audit.²

Mortgage Subordination

If any mortgage sits on the property, the lender must subordinate its interest to the charity’s right to enforce the easement before the donation is made. No subordination, no deduction. An easement a bank could wipe out through foreclosure is not “protected in perpetuity,” so it fails the permanence requirement. Approach the lender well before closing; some cooperate, some resist, some charge fees. Getting the written subordination in place before the easement is recorded is non-negotiable.²

The Paperwork You Have to File

Documentation errors are the most common reason the IRS disallows conservation deductions. The forms and deadlines are strict, and a missing signature can cost you everything.

Written Acknowledgment From the Charity

You need a written acknowledgment from the recipient describing the donated property, confirming receipt, and stating whether you received anything in return. If you received nothing, the letter must say so explicitly. You must have the acknowledgment in hand by the earlier of the date you file the return or its due date including extensions.³

Form 8283

Any noncash contribution over $5,000 requires Section B of IRS Form 8283 attached to your return. For land and easement gifts, this summarizes the property, the appraised value, and the appraiser’s qualifications. The qualified appraiser signs it, and an authorized representative of the receiving organization signs it to confirm receipt.⁴ That signature also obliges the organization to file Form 8282 if it disposes of the property within three years.⁵

The Full Appraisal for Deductions Over $500,000

If the claimed deduction exceeds $500,000, you must attach the complete qualified appraisal to the return, not just the Form 8283 summary. This applies in every year you claim the deduction, including carryover years, so the IRS has the full methodology and comparable sales in front of it from the start.¹

Audit Risk and Valuation Penalties

Conservation easement deductions are among the most heavily audited areas of individual tax law. The consequences of claiming too much go well beyond losing the deduction.

If the IRS finds your claimed value too high, accuracy-related penalties under Section 6662 apply on top of the extra tax. A claimed value at 150% or more of the correct value triggers a 20% penalty on the underpayment. At 200% or more, it jumps to 40% as a gross valuation misstatement. Courts have applied these penalties aggressively, and reliance on an appraiser is not a reliable defense.

Syndicated Easements and the 2.5x Rules

The IRS has been hardest on syndicated conservation easements, where a promoter recruits investors into a partnership that buys land, donates an easement, and allocates inflated deductions to the partners. In October 2024, Treasury issued final regulations (T.D. 10007) classifying these as “listed transactions” whenever the promised deduction equals or exceeds 2.5 times the investor’s investment. Every participant and material advisor must then disclose the transaction, and failure to disclose carries severe penalties. A pitch promising a 4:1 or 5:1 deduction on your investment is a red flag.⁶

Separately, the SECURE 2.0 Act added Section 170(h)(7), which flatly disallows any conservation contribution deduction by a partnership or S corporation to the extent the claimed amount exceeds 2.5 times each partner’s relevant basis in the entity. This applies to contributions made after December 29, 2022, and it is a statutory cap no appraisal can override.⁷ The rule targets pass-through entities where investors acquired their interests in connection with the contribution, so individual landowners donating easements on property they already own are generally unaffected.

State Tax Credits

Federal is not the only benefit. Roughly 15 states and territories offer their own tax credits for conservation easement donations, and these work on top of the federal deduction. Some states, including Colorado and Virginia, allow you to sell unused credits to another taxpayer for cash when your own tax liability is too small to absorb them. Others offer non-transferable credits usable only by the donor. Check the current rules in your state before counting on a credit, because legislatures periodically modify or suspend these programs.

1
Office of the Law Revision Counsel. 26 USC 170 – Charitable, Etc., Contributions and Gifts
2
eCFR. 26 CFR 1.170A-14 – Qualified Conservation Contributions
3
Internal Revenue Service. Charitable Contributions – Written Acknowledgments
4
Internal Revenue Service. Instructions for Form 8283
5
Internal Revenue Service. About Form 8282, Donee Information Return
6
Federal Register. Syndicated Conservation Easement Transactions as Listed Transactions
7
Federal Register. Statutory Disallowance of Deductions for Certain Qualified Conservation Contributions Made by Partnerships and S Corporations