What it means
Every business owns things: stock, machinery, buildings, receivables, cash. Those assets were paid for by someone, whether shareholders or lenders, and ROA asks a simple question about whether they are earning their keep.
A software firm with few physical assets will show a far higher ROA than a steel mill, which is why the ratio is only meaningful within an industry. Managers use it to compare divisions, spot idle capital and challenge investment cases.
If a proposed $5,000,000 machine will add $200,000 of profit, that is a 4% ROA, and a business already earning 10% on its assets should think hard before diluting that. The calculation usually uses average total assets rather than the closing figure, because profit is earned across the whole year while the balance sheet is a snapshot on one date.
Averaging the opening and closing totals stops a large purchase made in December from distorting the answer. ROA sits alongside return on equity, and the difference between the two is borrowing.
ROE looks only at shareholders' money, so a heavily indebted company can post a strong ROE on a weak ROA, and comparing the pair is a quick way to see how much of the return comes from leverage rather than operations. One nuance worth knowing is that the numerator and denominator do not quite match.
Net income is what is left after interest paid to lenders, while total assets are funded by lenders and shareholders together, so some analysts add interest back after tax to get a cleaner figure.
In practice
Real-world examples.
Example
A logistics company reviewing its depot network finds one site holding $12,000,000 of assets and contributing $240,000 of profit, an ROA of 2%. The board approves a sale and leaseback of the property, releasing capital that earns considerably more elsewhere in the group.
Example
A private equity buyer screening manufacturing targets ranks candidates by ROA rather than profit alone. One business with lower headline earnings turns out to run on half the assets of its rivals, which makes it far more attractive once purchase price is factored in.
Example
A bank assessing a loan application notices the borrower's ROA has fallen from 9% to 4% over three years while revenue grew. The cause is a warehouse full of slow moving stock, and the bank sets a working capital covenant before lending.
Think of it
“ROA shows profit relative to total assets-how well you use what you have.
Formula
Calculation
ROA = net income / average total assets, where average total assets = (opening total assets + closing total assets) / 2
A specialist retailer reports net income of $4,500,000 for the year. It began the year with total assets of $56,000,000 and ended with $64,000,000, so average total assets are ($56,000,000 + $64,000,000) / 2 = $60,000,000.
ROA = $4,500,000 / $60,000,000 = 7.5%. A competitor earning $3,000,000 on the same $60,000,000 of average assets would post $3,000,000 / $60,000,000 = 5%, meaning the first retailer produces half as much profit again from an identical asset base.Case study
Seen in the real world.
This is an illustrative and entirely fictional case. Tallow Creek Brewing, an invented craft brewery, was proud of doubling revenue in four years and reported steady profits of about $1,800,000. Its founders assumed the business was performing well.
A new finance director calculated ROA and found it had slipped from 12% to 4.5%, because the company had bought a second production site, filled it with tanks and then run it at 40% of capacity. Total assets had climbed to $40,000,000 while profit had barely moved.
The fictional management team responded by contract brewing for two smaller labels to fill the empty capacity and by selling a redundant bottling line. Profit rose to $2,600,000 on assets reduced to $34,000,000, lifting ROA back above 7.6% without any change to the brewery's own brand sales.
Watch out
Common mistakes.
- Comparing ROA across industries and concluding that an asset-light consultancy is better run than a capital intensive utility, when the two are simply built differently.
- Using closing total assets after a large year-end acquisition, which understates ROA because the new assets had no time to generate profit.
- Reading a rising ROA as automatically good news when it has been produced by starving the business of maintenance capital expenditure.
Questions
People also ask.
What counts as a good ROA?
It depends entirely on the sector, but a figure of 5% or more is respectable for most asset heavy businesses while software and services companies often exceed 15%.
Should intangible assets be included?
Yes, if they sit on the balance sheet, though large amounts of goodwill from acquisitions can depress ROA, so some analysts also calculate a version excluding it.
How does ROA relate to asset turnover?
Asset turnover measures revenue per dollar of assets and ROA measures profit per dollar of assets, so ROA equals asset turnover multiplied by net profit margin.
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