Crop Insurance Premium Calculator
Estimate your annual crop insurance premium based on insured acres, APH yield, price election, coverage level, and county risk. Use it during fall enrollment to compare coverage levels before committing.
About this calculator
Federal crop insurance premiums under the USDA Risk Management Agency (RMA) are calculated as a function of the total insured liability adjusted for the probability of a loss in your county. The insured liability is: liability = insuredAcres × averageYield × commodityPrice × coverageLevel. The premium is then: premium = liability × countyRisk / 100. Here, averageYield is your Actual Production History (APH) yield established from 4–10 years of farm records. The coverageLevel is expressed as a decimal (e.g., 0.75 for 75% coverage). The countyRisk factor represents the actuarial rate the RMA assigns based on historical loss frequency in your county — higher-risk counties with frequent drought or hail pay higher rates. Note that farmers pay only a portion of the full premium; the federal government subsidizes 38–62% depending on coverage level.
How to use
A corn farmer has 500 insured acres, an APH yield of 180 bu/acre, a price election of $4.90/bu, a coverage level of 0.75, and a county risk factor of 0.045 (4.5%). Step 1 — Liability: 500 × 180 × $4.90 × 0.75 = $330,750. Step 2 — Full premium: $330,750 × 0.045 / 100 — wait, countyRisk here is already a decimal-adjusted rate. Applying directly: $330,750 × 0.045 = $14,884. Step 3 — This is the estimated gross premium before federal subsidy. At 75% coverage, the farmer's share is roughly 45%, so out-of-pocket cost ≈ $14,884 × 0.45 ≈ $6,698.
Frequently asked questions
How is APH yield calculated and why does it matter for my premium?
Actual Production History (APH) yield is the simple average of your farm's certified yield records over the most recent 4–10 crop years, subject to RMA floors and adjustments. A higher APH yield increases your insured liability and therefore your gross premium, but it also raises the dollar value of any indemnity payment you receive after a loss. Farms with incomplete records may have yields assigned at 65% of the county average, which can understate both coverage and premium. Keeping accurate yield records every year is the most important step in maximizing the value of your crop insurance policy.
What is the county risk factor and how does it affect my crop insurance premium?
The county risk factor is the actuarial loss rate the USDA Risk Management Agency assigns to your county based on decades of historical indemnity data. Counties prone to drought, hail, or flooding carry higher risk factors, resulting in higher premiums for the same coverage level. Risk factors can differ significantly between neighboring counties and are updated annually by RMA. You can look up your county's current actuarial data on the RMA Cost Estimator tool at rma.usda.gov to cross-check results from this calculator.
How does choosing a higher coverage level change the cost and benefit of crop insurance?
Coverage levels typically range from 50% to 85% of your APH yield in 5-percentage-point increments. Selecting a higher coverage level raises your premium but significantly lowers the yield threshold at which an indemnity payment is triggered, providing more protection in a moderate loss year. Federal subsidy rates are highest at lower coverage levels (55% subsidy at 65% coverage) and decline as coverage rises (38% subsidy at 85% coverage), meaning your out-of-pocket share grows faster than the premium itself as you move up. Most risk management advisors recommend at least 75–80% coverage for farms with significant debt obligations.