Build the property profile
Document eligible acquired acres, historical crop use, years farmed, irrigation, fertilizer history, purchase price, taxpayer profile, and the facts needed to understand prior and continued agricultural use.
The estimator architecture separates property facts, nutrient analysis, pricing support, agronomic evidence, and tax review so the path from input to decision remains understandable.
STEP BY STEP
The opportunity estimate changes as the property facts change. That is intentional. The workflow is designed to avoid working backward toward a desired deduction.

Document eligible acquired acres, historical crop use, years farmed, irrigation, fertilizer history, purchase price, taxpayer profile, and the facts needed to understand prior and continued agricultural use.
The architecture evaluates nitrogen, phosphate, potash, sulfur, lime, calcium, magnesium, boron, zinc, and manganese as separate lines, each with its own quantity, price basis, evidence, and overlap considerations.
The workbook stores the pricing date and source basis. The process uses a 30-day pricing refresh protocol, current USDA Agricultural Marketing Service benchmarks, and monthly BLS/FRED fertilizer-materials indexing for acquisition-date consistency. Stronger local dealer quotes or retained invoices can override national fallbacks.
USDA, BLS/FRED, tax authorities, and agronomic guidance are documented with dates, URLs, and limitations. When a source is only a screening proxy, the model identifies it as such.
The filing-readiness gate separately tracks farming status, prior use, continued use, acquisition evidence, federal acreage exclusions, historical pricing, prior-owner attribution, parcel sampling, nutrient overlap, purchase-price allocation, tax method, and the final filing amount.
Physical soil samples and laboratory results give the agronomist parcel-specific evidence to confirm or replace modeled quantities when the field evidence supports doing so.
The CPA or tax counsel controls the final approved amount, basis treatment, timing, election, and filing position.
CONSERVATIVE BY DESIGN
Low-confidence crop categories use conservative screening assumptions. Native or unfertilized rangeland can carry a zero residual-fertilizer assumption. The architecture is designed to show uncertainty rather than hide it.
NEXT STEP
Start with the facts you already have. We can identify what additional information would be useful for a preliminary review.
Start a Conversation