A grower signs a forward contract at a bid that beats last year's, without comparing it to the break-even price per bushel on the fields that will deliver the grain. The math was never done.
Break-even is the price at which a crop covers its costs and nothing more. Every marketing decision sits above or below that line.
Most sales mistakes start with a number that looked good in isolation. A bid feels strong against last year or against the neighbor's story, and the cost sheet stays in the drawer. Costly habit.
What a break-even price per bushel actually measures
Quick Tips
- Divide each field's total cost per acre by its own expected yield, not the farm average.
- Add rent, interest and drying to the cost side before you divide.
- Recalculate whenever USDA revises its yield forecast or your input bills change.
- Set a rule: no contract below break-even unless it fills a clear cash need.
Break-even is total cost per acre divided by expected yield per acre. Simple, but easy to skip.
For example, $620 of cost on a field expected to make 180 bushels works out to about $3.44 per bushel. The cost did not change. At 160 bushels the same field needs about $3.88 per bushel.
Notice what moved the answer. Yield sits in the denominator, so a small miss on bushels raises the floor faster than most growers expect. That surprises people.
Field costs change the answer across one farm
| Cost item | How it moves break-even | What to check |
|---|---|---|
| Rented ground | Raises cost per acre on fields with no yield edge | Compare rent with each field's own yield history |
| Seed and fertilizer | Rises or falls with rates by zone | Match rates to zone potential |
| Drying and hauling | Adds cost per bushel after harvest | Add moisture and distance to the sheet |
| Machinery and labor | Spreads across more or fewer acres | Divide by acres actually worked |
Two fields can have very different floors. A rented field with high rent and average yield needs a higher price than an owned field with a strong yield history. Averaging them hides that gap.
Costs also arrive at different times. Inputs are paid before planting, while drying and hauling show up near harvest. A sheet that only lists inputs understates the true floor.
The number one mistake is a single farm-wide average
Many producers calculate one break-even for the whole operation and apply it everywhere. It is quick, and it is wrong for any farm with uneven fields.
Picture a farm with a 200 bushel field costing $640 per acre and a 150 bushel field costing $600 per acre. The floors differ. For example, the first needs $3.20 per bushel and the second needs $4.00.
A blended figure near $3.60 looks safe for both, but it leaves the weaker field selling below its cost. That is the trap.
Sell the grain from each field against its own number. Weak fields deserve the most caution.
Linking break-even to forward contracts and storage
A forward contract only helps when the locked price clears the floor with room to spare. Break-even decides that.
For the mechanics of the contract itself, read our look at how forward contracting works for row crop revenue. Then apply your floor.
Storage adds its own cost per bushel, including interest and shrink. If the expected gain from waiting is smaller than that cost, the bin is not paying you. Do the math first.
Local pricing matters here too. Basis decides what you receive at your elevator, and local grain basis mechanics can move the real return well away from the headline futures number. Use your delivered price.
Margin above break-even absorbs surprises
A sale at exactly break-even leaves no room for a late input bill, a wet harvest or a repair. No cushion.
Most operations need extra margin on top of the floor, sized to their own risk and cash needs. Call it a cushion.
Floor first, then floor plus margin. Sales above the second line are the ones worth celebrating, because they leave real room for error. Aim there.
Lenders and landlords watch this too. A field-level floor makes it easier to explain a rent offer, an operating loan request or a decision to drop a poor field. Paper beats memory.
Yield forecasts that move your marketing floor
USDA publishes yield forecasts during the season and revises them as the crop develops. A forecast is an estimate, not a final number. Treat it that way.
When your own yield expectation changes, your break-even changes with it. A field that looked like a $3.40 crop in summer may need $3.80 after a dry August. Update before selling.
Market prices change often, so the comparison needs a current reference. Check your state's current price and set it beside your own floor. The gap is your margin of safety.
Turning the calculation into a routine
Keep one simple sheet with a row for each field, listing cost per acre, expected yield and the resulting floor. Review it often. Share it with whoever helps market the grain, whether a partner, a lender or an advisor.
Then write down your sales rules in advance. For example, you might sell a set share only above break-even plus a chosen margin. Calm rules beat rally decisions.
Break-even does not predict the market. It tells you what the market must pay before a sale helps you. That is enough to avoid the worst mistakes.
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Frequently Asked Questions
How do I calculate break-even price per bushel?
Divide total cost per acre by expected yield per acre. Include rent, interest, drying and hauling so the result reflects the real cost.
Should break-even be calculated by field or for the whole farm?
By field when you can. A farm-wide average hides weak fields that need a higher price to cover their costs.
Why does break-even change during the season?
Yield expectations and costs change as the crop develops. Because yield is the divisor, a lower expected yield raises the price you need.
Is break-even the same as a good selling price?
No. Break-even only covers costs. A good sale also leaves a margin above it, and that margin is your own decision.
