Know your break-even before you take a bid

When a buyer offers you $312 a tonne, the only honest response is a question. $312 against what? Without a break-even, a bid is just a number. With one, it is either a profit or a loss, and you know which before you say yes.

Your break-even is the price per tonne that covers the full cost of growing the grain. Sell above it and you make money. Sell below it and you are subsidising the buyer.

Build it from the paddock up

Break-even per tonne is your total cost per hectare divided by your yield per hectare. The trap is leaving costs out, so build it in three layers.

• Variable, or input, costs. Seed, fertiliser, chemical, and anything else that scales with the crop.
• Operating costs. Fuel, labour, repairs, and contract operations like spreading or harvesting.
• Overheads. Land cost or finance, rates, insurance, and machinery depreciation, spread across your hectares.

Add all three per hectare, then divide by a realistic yield.

Why yield is the lever that matters most

Cost per hectare is reasonably stable through the season. Yield is not, and because it sits on the bottom of the equation, it swings your break-even hard.

If your costs are $640 a hectare, then at 4 tonnes a hectare your break-even is $160 a tonne. Drop to 3 tonnes a hectare in a dry finish and the same costs now need $213 a tonne to break even. Nothing about your spending changed. Your floor just rose by a third.

The same costs across a smaller harvest mean a higher price just to stand still. That is why break-even is a moving line, not a fixed one.

Run it before you need it

The point of a break-even is to have it ready when a bid lands or a contract opportunity appears, not to reconstruct it under pressure. Update it as input costs firm up and as your yield estimate sharpens through the season, so the number you are negotiating against is always current.

Before you say yes

Compare any bid to a current break-even built from all three cost layers and a realistic yield. If the bid clears it, you are selling a margin. If it doesn't, you are selling at a loss you can at least see, which beats one you can't.