Understanding how soil fertility could create an overlooked tax opportunity for agricultural landowners
When purchasing agricultural property, buyers naturally focus on acreage, location, improvements, timber, and the land’s potential productivity. But another valuable asset beneath the surface may deserve attention: the soil itself.
Section 180 of the Internal Revenue Code is a longstanding tax provision that allows qualifying farmers to elect to deduct certain expenditures for fertilizer, lime, and other materials used to enrich, neutralize, or condition farmland. More recently, conversations surrounding Section 180 have expanded to include the potential tax value of residual soil fertility already present when agricultural property is purchased or inherited.
For farmers and agricultural landowners, understanding this provision could uncover an opportunity worth discussing with a qualified tax professional.
What Is Section 180?
Section 180 is a provision of the federal tax code that has been in place since 1960. It allows taxpayers engaged in farming to elect to expense certain costs associated with fertilizer, lime, and other soil-enriching materials that would otherwise be capitalized.
In practical terms, the provision recognizes that soil fertility is an important component of agricultural production and land value.
The provision specifically addresses qualifying expenditures for materials used to enrich, neutralize, or condition land used in farming. The land must be used to produce crops, fruits, other agricultural products, or to sustain livestock.
Understanding Residual Soil Fertility
One reason Section 180 has received increased attention is the discussion surrounding residual soil fertility.
When agricultural property changes hands, the buyer may be acquiring more than just the physical acreage. The soil may already contain valuable nutrients, including phosphorus, potassium, calcium, magnesium, and other elements that contribute to agricultural productivity.
Depending on the circumstances, the existing excess fertility at the time of acquisition may have a separately identifiable tax value.
This is where a residual fertility valuation becomes important. By analyzing soil conditions and documenting nutrient levels, specialists can help determine whether the property’s existing fertility has a supportable value.
This type of residual fertility deduction involves additional tax considerations and interpretations beyond simply deducting fertilizer purchased during the year. The appropriate tax treatment and applicable code provisions should be determined by a qualified tax professional.
Who Should Explore This Opportunity?
Section 180 and residual fertility tax strategies may be worth discussing with a CPA if you:
- Recently purchased agricultural property.
- Inherited farmland or agricultural property.
- Own land actively used for crop production or livestock operations.
- Have agricultural property with established soil fertility and a documented production history.
- Are evaluating the financial implications of a recent land acquisition.
Not every landowner or property will qualify. Eligibility depends on how the property is used, the nature of the acquisition, the taxpayer’s circumstances, and the documentation available.
Why Proper Documentation Matters
As with any tax deduction, documentation is essential.
A residual fertility valuation requires more than a general estimate of the nutrients present in the soil. A thorough evaluation should consider existing nutrient levels, agronomic requirements, the amount of fertility above established critical levels, and the supporting value of those nutrients.
Soil sampling and detailed analysis can help establish a more accurate picture of the property’s fertility at the time of acquisition.
For landowners considering this opportunity, working with professionals who understand both soil science and agricultural land can be an important part of the process.
A Resource Worth Knowing: Advanced Agrilytics
For landowners interested in exploring residual soil fertility valuations, Advanced Agrilytics is one resource worth considering.
Their team specializes in precision agronomy and offers a Residual Fertility Valuation program that uses soil sampling and agronomic data to evaluate existing soil nutrients and prepare supporting documentation.
We recommend becoming familiar with their work if you are considering whether your agricultural property may have an opportunity worth investigating.
Learn more about their services at advancedagrilytics.com.
Make Sure You Understand the Value of Your Land
Land ownership involves more than the purchase price and the number of acres on a deed. Understanding the property’s agricultural productivity, natural resources, and potential financial benefits can help landowners make more informed decisions.
Section 180 and residual fertility valuations are worth understanding, particularly for those who have recently purchased or inherited agricultural property.
If you believe your property may qualify, start by speaking with your CPA or agricultural tax advisor. They can help determine whether an opportunity exists, what tax provisions apply, and what documentation is necessary to support a potential deduction.
At Southeastern Land Group, we believe understanding a property’s full value is an important part of land ownership. Sometimes, that value extends well beyond what you can see on the surface.

