The farm profitability metrics that matter are the five your lender already calculates: operating expense ratio, operating profit margin, return on assets, return on equity, and cost of production per bushel. Each one adds back interest or charges for your own labor and management, so it measures the farm, not the financing or the family. In 2025, the median Minnesota farm in the FINBIN database earned a 4.3% return on assets at cost, and its operating expense ratio was 78%, just under the 80% line farm analysts treat as vulnerable. You should know your own versions of those numbers before your banker brings them up.
Key takeaways
- Use the Farm Financial Standards Council measures. They are what lenders and Iowa State use.
- Operating expense ratio above 80% is a warning sign. The 2025 Minnesota median was 78%.
- Return on assets depends on whether land is valued at cost or market. Know which one you are looking at.
- Cost per bushel beats “gross margin” for a grain farm. Iowa State puts 2026 corn at about $4.32.
- Owned Iowa ground earns roughly 2% in rent on today’s values, which pulls ROA down on almost every land-owning farm.
Why do generic farm profitability metrics mislead?
Farm profitability metrics are the ratios that show whether a farm is making money relative to its revenue, its assets, and the owner’s equity. The textbook versions, built for retail businesses, skip three things that decide whether a farm actually made money.
They do not charge for the family running it. A farm that shows $75,000 of net income has not made $75,000 of profit if that money also has to pay the people who ran it. The standard measures charge family living, or a value for operator labor and management, before calling anything profit. They also ignore interest. The standard measures add it back, so a farm with debt and a farm without it can be compared on the same footing. Land is the third gap. Iowa farms carry a huge asset at a low cash yield, and whether that land sits on the balance sheet at what you paid or what it is worth changes every return ratio.
“Gross profit margin” built on cost of goods sold is the clearest example. It works fine for a business that buys and resells inventory. A grain farm does not have a clean cost of goods sold, so the number depends on how you sort your expenses.
Iowa State’s Financial Performance Measures for Iowa Farms, updated in October 2026, follows the Farm Financial Standards Council guidelines that most ag lenders and farm accountants use. Those are the measures below.
What is your operating expense ratio?
Operating expense ratio = (total operating expenses minus depreciation and interest) divided by gross revenue.
It tells you how many cents of every revenue dollar go to running the farm before equipment wear and financing. Farm Credit Services of America lists below 65% as the desirable range. The 2025 FINBIN report on Minnesota farm finances puts the median at 78%, down from 82% in 2024, and calls anything above 80% vulnerable.
A hypothetical grain farm with $500,000 of gross revenue and $370,000 of operating expenses, not counting depreciation and interest, sits at 74%. Workable, but it does not leave much room for a bad year.
Watch the trend more than the single year. A ratio climbing three points a year means costs are outrunning revenue, and rent is usually the first line a tenant tries to cut.
What is your operating profit margin?
Operating profit margin = (net farm income plus interest expense minus family living or an owner labor and management charge) divided by gross revenue.
This replaces “net profit margin” as the bottom-line efficiency measure, because it charges for the operator’s time. FCS America lists above 30% as desirable. Few grain farms hit that in a down year.
Same hypothetical farm: $75,000 of net farm income, $25,000 of interest, and $60,000 of family living. ($75,000 plus $25,000 minus $60,000) divided by $500,000 is 8%. Plain net farm income over revenue would have said 15%. That gap is the family’s own labor, and the generic formula pretends it is free.
What is your return on assets?
Return on assets = (net farm income plus interest expense minus family living or the labor and management charge) divided by total farm assets.
FCS America lists above 6% as desirable. FINBIN’s 2025 Minnesota median was 4.3%, up from 2.0% in 2024, with assets valued at adjusted cost. Crop farms in that report earned about 3%.
Now value the land at market. Put our hypothetical farm at $3 million of assets, mostly owned ground carried at today’s values, and the same $40,000 of return is 1.3%. The farm did not change. Only the value put on the land did.
That is not a reason to panic. It is a good reason to ask “cost basis or market basis?” before you compare your ROA with anyone else’s, including your neighbor’s at the co-op.
What is your return on equity?
Return on equity = (net farm income minus family living or the labor and management charge) divided by owner equity, where equity is total assets minus total liabilities.
If ROE is higher than ROA, your borrowed money is earning more than it costs. If it is lower, debt is costing you. FINBIN’s 2025 median ROE was 3.8% against a 4.3% ROA, and the report says outright that borrowed capital again cost more than it earned.
The hypothetical farm, with $900,000 of debt and $2.1 million of equity: ($75,000 minus $60,000) divided by $2.1 million is 0.7%, which is low and below its ROA. That farm should think hard before borrowing for anything that does not pay back fast.
What does it cost you to raise a bushel?
For a corn and soybean farm, cost of production per bushel does the job “gross margin” was supposed to do, and it is the number that should drive marketing decisions.
Iowa State’s 2026 estimated costs of crop production put corn following soybeans at about $4.32 a bushel at a 211-bushel yield, and soybeans following corn at about $11.13 at 61 bushels. Both include land at $274 an acre, which is roughly 30% of the corn cost and 40% of the soybean cost. ISU economists Chad Hart and Ann Johanns expect average 2026 prices to fall below those costs.
Your own number matters more than the state average. Total your costs per acre for each crop, land included, and divide by your actual yield. An operator who knows their corn costs $3.95 a bushel makes very different marketing calls than one who is guessing.
How do you actually move these numbers?
Each ratio points at a different lever, which is the real reason to track all five instead of just net income. If cost per bushel is high, start with inputs. Check fertilizer rates against soil tests, seed and chemical spend per acre, and whether your rotation is costing you yield. If you are selling below your breakeven, the problem is marketing. Knowing your cost per bushel lets you price grain against it instead of against the elevator’s bid on the day you need cash.
ROE below ROA means debt is costing more than it earns. Pay down or refinance the most expensive borrowing before you add more. An operating expense ratio that keeps climbing usually means one line is growing, and on rented ground that line is often rent. A flexible lease can tie it to what the crop actually brings.
What do these metrics say about buying more land?
Here is where we can give you a straight read, because we sell the land.
Iowa State’s 2026 cash rent survey puts the Northwest district at $290 an acre, and the 2025 land value survey puts the same district at $14,522 an acre. Owning that ground instead of renting it saves you rent equal to about 2% of its price. If the money to buy it costs you more than 2%, the purchase lowers your ROA and your cash flow, and you are buying for appreciation, security of tenure, or the long game.
Those are good reasons. Plenty of operators buy the farm next door in years when it does not pencil on cash flow. The point is to know that going in. Run your ROE and operating expense ratio with the new debt included before you bid, and get pre-approved, as we cover in how to pay for farmland bought at auction.
Where Midwest Land Management fits
We are not your accountant or your lender. We bring the land number every one of these ratios leans on: a current market value built from our own database of recent area sales, not a guess or an old appraisal. For buyers, our land acquisitions team finds ground that fits your operation. For owners, our farm management team, led by Travis Johnson, AFM, keeps income and expense accounting and profitability reports on every farm we manage. Land is our business, and that number is where the work starts.
FAQ
What is a good return on assets for an Iowa farm?
FCS America lists above 6% as desirable, but the answer depends on how land is valued. FINBIN’s 2025 Minnesota median was 4.3% at cost. A land-heavy farm valued at market will often show far less, and that alone is not a red flag.
What is the difference between net farm income and profit?
Net farm income has not paid the operator. The standard profitability measures subtract family living or a charge for unpaid labor and management, which is why a farm can show positive net farm income and still have a thin operating profit margin.
Should I use cost or market value for my balance sheet?
Lenders typically want market-value balance sheets for solvency, and some benchmarks report returns at cost. Keep both if you can, and always compare ratios built on the same basis.
How often should I calculate these metrics?
At least once a year, after you close the books, and before any big decision like buying land or equipment. Track five years to see the trend.
Need a current value for your balance sheet, or are you thinking about adding ground? Request a free farm evaluation or call our Spencer office. We will give you the number and tell you what we would do with it.