The soil science. The supporting file. Your judgment.
Help agricultural clients evaluate residual fertility with a coordinated agronomy and valuation team—and clear documentation your firm can review with confidence.
A useful nutrient inventory explains how the soil results were interpreted and which quantities can be supported. Each step should connect back to the property and its records.
Start with the source. Identify the sample date, field, laboratory, extraction method, and units.
Apply field context. Evaluate crop needs and supported nutrient thresholds rather than treating every soil result alike.
Address the acquisition. Review what the records can establish about fertility present when ownership changed.
Why this matters to your firm
You can follow the path from a laboratory result to the quantity being valued—and see where assumptions or missing records affect the conclusion.
WHAT THE INVENTORY CONNECTS
Illustrative report structure
Review item
Supporting detail
Sample identity
Field reference, location, and collection date
Lab result
Reported nutrient, test method, and measurement units
Critical level
Basis for the crop- and field-specific threshold
Residual quantity
Calculation, conversions, and material assumptions
Historical connection
Records and limitations relevant to acquisition
P PhosphorusK PotassiumS SulfurZn Zinc
Examples of nutrients that may be evaluated. Their presence alone does not establish a qualifying tax asset.
02 / THE REVIEW FILE
Put every conclusion back on the land.
Field maps connect soil evidence to the area being evaluated. They help your firm see how the sampling and field boundaries relate to the valuation.
Locate the evidence. Connect sample locations with the relevant fields and available parcel records.
Understand variation. Review nutrient distribution instead of assuming one result represents an entire operation.
Keep the scope clear. Identify the acreage and field areas covered by the analysis.
Why this matters to your firm
Maps help make coverage and field differences visible, including areas where additional information may be needed.
FROM SAMPLE LOCATION TO FIELD CONTEXT
S1–S7: illustrative sample locationsColors distinguish fields, not nutrient levels.
LocateSample recordsCompareField conditionsConnectValuation area
Schematic only. Actual geospatial layers and nutrient maps depend on available data and the engagement.
03 / THE REVIEW FILE
Show how the valuation was built.
A supportable valuation connects the nutrient quantity to the correct unit, a documented equivalent, and pricing relevant to the acquisition period.
Use supported quantities. Begin with the agronomic analysis and its historical limitations.
Make conversions visible. Explain how reported nutrients translate to the quantities and product equivalents used in the valuation.
Match the period. Document the pricing basis for the acquisition month and year where supported.
Why this matters to your firm
Your team can review the inputs, follow the calculations, and identify which assumptions drive the result. A valuation does not determine the allowable deduction.
THE VALUATION PATH
01
Supported nutrient quantity
Field evidence + acquisition context
02
Documented unit & equivalent
Conversion basis + product relationship
03
Acquisition-period pricing
Period + pricing source + assumptions
04
Nutrient valuation for CPA review
Traceable inputs and calculations
Illustrates the workflow, not a formula for tax savings. Your firm determines eligibility, basis, timing, and tax treatment.
04 / THE REVIEW FILE
A method your firm can question.
The methodology should explain what was reviewed, how the analysis was performed, and where the evidence limits the conclusion. Technical support continues within the agreed engagement scope.
Explain the approach. Describe interpretation of lab data, critical levels, historical records, and valuation inputs.
Expose assumptions. Identify gaps, reconstruction assumptions, and limitations relevant to the property.
Define support. Clarify who answers agronomy and valuation questions if the work is challenged.
Why this matters to your firm
The technical team can explain its work. Your CPA firm retains independent judgment over the tax position and handles representation when authorized.
FOUR QUESTIONS THE FILE SHOULD ANSWER
1
What did we rely on?
Property records, soil analyses, agricultural history, and pricing support.
2
How did we interpret it?
Test methods, thresholds, nutrient quantities, and relevant field context.
3
What remains uncertain?
Missing records, historical assumptions, and boundaries of the analysis.
4
Who supports the work?
Ash & Acre coordinates questions; specialists explain their technical conclusions.
Technical audit support is defined by the engagement. It is not a guarantee of IRS acceptance or an audit outcome.
1 of 4 · Nutrient inventory
Conceptual preview of report components. No client data or valuation results are shown. Final contents depend on the property and engagement.
A WORKFLOW THAT RESPECTS YOUR FIRM
Specialist support. A clear handoff.
Ash & Acre
Coordinates intake, property records, communication, and the specialist review workflow.
Agronomy & valuation team
Evaluates field evidence, develops the supported valuation, and explains the technical methodology.
Your CPA firm
Determines tax eligibility, ownership and basis, treatment, timing, elections, and the return position.
Technical support when questions arise.
Agronomy and valuation specialists support their methodology and conclusions within the agreed audit-support scope. Your firm or the client’s authorized representative handles tax representation.
WHY BRING US INTO THE CONVERSATION?
Make the opportunity reviewable.
Give agricultural clients access to specialized field analysis while keeping the tax decision with the professionals who know their business.
Start with a discussion of your client portfolio, documentation standards, and the records needed to evaluate a case.
General background for professional analysis. These resources do not endorse Ash & Acre or establish a particular client’s eligibility.
A nutrient valuation is not a tax opinion or a guaranteed deduction. Acquisitions back to 2010 may be reviewed when records support the analysis; this does not establish an open filing or amendment period. Engagement terms define deliverables and audit support.