Historical Codification and Longevity of Conservation Easement Deduction Justify Taxpayer Reliance
The Gist
Because Congress formally wrote the conservation easement tax deduction into law in 1980 and the IRS provided consistent official guidance on it for nearly 50 years without major change, taxpayers had every reason to trust it was a stable, legitimate part of the tax code.
Conclusion
The conservation easement tax break was legally created via IRS revenue ruling, made permanent by Congress in 1980, and remained part of the tax code for nearly 50 years, so taxpayers reasonably relied on it.
Premises
- The Tax Treatment Extension Act of 1980 codified conservation easement deductions permanently into Internal Revenue Code Section 170(h), reflecting deliberate congressional action rather than temporary or discretionary administrative policy.
- Both before and after this codification, the IRS issued formal revenue rulings and Treasury regulations establishing clear, specific requirements for qualifying conservation easement donations, giving taxpayers an official framework to follow.
- For nearly five decades, taxpayers, land trusts, appraisers, and tax professionals structured transactions and financial planning around this consistent statutory and regulatory framework without any fundamental legal challenge to its validity.
- The core structure of Section 170(h) remained substantially unamended during this period, signaling continued legislative and administrative endorsement rather than provisional or experimental status.
- Well-established principles of tax administration and due process recognize that when a benefit is enacted by statute, elaborated through official agency guidance, and applied consistently for decades, taxpayers are entitled to treat that guidance as a stable basis for planning.
- Good-faith compliance with clearly published law and agency guidance—absent notice of imminent change or invalidity—constitutes the paradigmatic case of reasonable reliance in tax law.
Assumptions
- Taxpayers who claimed the deduction generally did so in good faith based on the plain language of the statute and the IRS guidance available to them at the time.
- The concept of 'reasonable reliance' is a legitimate legal and policy standard that should inform how retroactive changes in tax enforcement are evaluated.
- No substantial contemporaneous judicial or administrative warnings existed during most of this 50-year period that would have put ordinary taxpayers on notice that the deduction's validity was in serious doubt.