Agricultural real estate professionals know that farmland value extends beyond acres and location. Productivity, drainage, improvements, access and soil quality can all influence how a buyer evaluates a property.
But there may be another form of value worth putting on a buyer’s radar: residual fertility already in the soil.
That is where Section 180 and Residual Fertility Valuation (RFV) enter the conversation.
Real estate professionals don’t need to calculate residual fertility or give tax advice. But understanding the concept can help you introduce buyers to a potential opportunity connected directly to the agricultural land they are acquiring.
What Does Section 180 Have to Do With a Land Purchase?
Section 180 has been part of the tax code since 1960. In residual fertility applications, the concept centers on fertilizer, lime and other qualifying inputs applied by a previous owner that remain available in the soil when agricultural land changes hands.
If fertility remains above what is needed for normal production, that excess may have measurable value. A qualified landowner may be able to recover that value through a Section 180 deduction or related tax treatment, depending on the circumstances. Their tax professional makes that determination.
This is sometimes called residual fertility, residual fertility value or legacy nutrients. Advanced Agrilytics uses a Residual Fertility Valuation to determine and document that agronomic value.
The important connection for agricultural real estate professionals is simple: the opportunity begins with a land transaction.
Your Role Is Recognition, Not Tax Advice
Buyers depend on agricultural real estate professionals for more than finding available acres. They look to you for knowledge of agricultural property and the questions they should be asking before and during a transaction.
Section 180 can become one more conversation worth knowing how to start.
You don’t need to tell a buyer whether they qualify. You don’t need to estimate a deduction. And you certainly don’t need to become a soil scientist.
Instead, you can say:
“There may be value in the residual fertility you’re acquiring with this property. Have you talked with your tax advisor or an RFV provider about it?”
That simple question can introduce an opportunity the buyer might otherwise overlook.
Why Timing Around the Transaction Matters
Residual fertility is valued based on conditions and nutrient pricing tied to the time the property was acquired, not what those nutrients are worth years later.
That makes the transaction itself a natural time to start thinking about RFV.
Information about prior management may also be more accessible while a property is changing hands. Fertilizer applications, lime history, crop production and other records can help establish what happened on the land before the new owner took possession.
Soil sampling near acquisition, ideally before the buyer makes additional fertility applications, can also create a clearer picture of what was present when the property changed hands.
A buyer who learns about RFV early can begin assembling the right information rather than trying to recreate it later.
A Soil Test Alone Isn’t a Residual Fertility Valuation
Understanding Section 180 also helps real estate professionals set appropriate expectations.
The opportunity isn’t simply based on whether a farm has “good dirt” or high soil-test numbers. The relevant value is the excess fertility attributable to prior applications, not all nutrients naturally present in the soil.
Advanced Agrilytics uses actual soil samples, point-level data, field-specific critical levels and documented historical nutrient pricing to calculate and support a Residual Fertility Valuation. The goal is to establish a value that can be traced back to the property and explained.
The resulting RFV Report gives the landowner and their tax professional the agronomic documentation needed to evaluate the appropriate tax treatment.
One Transaction. Three Areas of Expertise.
Section 180 value can be maximized when these 3 areas collaborate as part of a team surrounding the landowner.
The agricultural real estate professional understands the transaction and can make the buyer aware that residual fertility may be worth evaluating.
Advanced Agrilytics establishes and documents the agronomic value through RFV.
The buyer’s tax professional determines eligibility and the appropriate tax treatment.
For real estate professionals, that knowledge can become another way to provide value before, during and after the sale.
You aren’t selling a tax strategy. You’re helping your client understand that when they buy agricultural land, they may be acquiring value they can’t see from the road.
The best time to recognize that possibility is when the land is changing hands.
Advanced Agrilytics provides agronomic analysis and valuation documentation, not tax, accounting or legal advice. Eligibility and tax treatment should be determined by a qualified tax professional.