Editorials

Microsoft's 10-Q for the quarter ended September 30, 2026, filed October 28, 2026, reports the first quarter of fiscal 2027. The company reported revenue of $92.28 billion, gross profit of $62.56 billion, operating income of $45.92 billion, income before taxes of $45.95 billion, an income tax expense of $9.32 billion, net income of $36.63 billion and diluted earnings per share of $4.92. Those are the figures this piece works from. The comparison column is the first quarter of fiscal 2026, as shown in the company's prior-year filings in the same data set.

On the reported figures, gross margin for the quarter was 67.8%, and operating margin was 49.8%. Both are high for a business of this size, but the two lines moved in different directions from a year earlier. Gross margin was about 1.2 percentage points lower than the 69.0% reported in the first quarter of fiscal 2026, while operating margin was about 0.9 points higher than the 48.9% of that year-ago quarter.

The gap between those two movements is the useful part. Gross profit grew more slowly than revenue, so the company kept less of each incremental dollar at the gross line. Operating income grew faster than revenue, which means operating costs below the gross line grew more slowly still. Revenue rose about 18.8% and operating income about 21.0%, based on the reported figures for the two quarters.

Research and development expense was $9.05 billion in the quarter, or about 9.8% of revenue. In the first quarter of fiscal 2026 it was $8.15 billion, or about 10.5% of revenue. R&D therefore grew about 11% in dollar terms, which is below the rate of revenue growth, so its share of sales fell.

General and administrative expense was $1.88 billion, or about 2.0% of revenue, compared with $1.81 billion, or about 2.3%, a year earlier. G&A rose about 4% in dollars.

Together, R&D and G&A came to $10.93 billion, or about 11.8% of revenue, against about 12.8% in the year-ago quarter. Gross profit less operating income, which captures all operating expense the company reports below the gross line, was $16.64 billion, or about 18.0% of revenue, compared with $15.67 billion, or about 20.2%, a year earlier. The scale of these figures is the point: a company with this revenue base can fund very large research budgets and still report operating margins near half of sales.

Operating income of $45.92 billion became $36.63 billion of net income after two steps. The first is non-operating items, which netted to a gain of $38 million in the quarter, so income before taxes ($45.95 billion) sits almost exactly on top of operating income. Within that net figure, the 10-Q tags interest expense of $870 million, a $46 million loss on investments, and a separate other non-operating line of $282 million. The company did not present a single explanation of the net figure in the data reviewed here beyond those tagged lines.

The second step is tax. Income tax expense of $9.32 billion on $45.95 billion of pre-tax income implies an effective rate of about 20.3%. In the first quarter of fiscal 2026 the rate was about 19.1% ($6.55 billion on $34.30 billion).

The result is that net income equalled about 79.8% of operating income. Most of the difference from operating income is the tax line, not non-operating items, in this quarter.

The year-over-year net income comparison needs care. Net income rose about 32% from $27.75 billion to $36.63 billion, and diluted EPS rose from $3.72 to $4.92. But the first quarter of fiscal 2026 carried a non-operating net expense of $3.66 billion, while this quarter's non-operating items were close to zero. Much of the growth in net income therefore reflects the swing in non-operating items, not only the growth in operations. Operating income growth of about 21% is the cleaner measure of the underlying business in this comparison.

The data set includes the four quarters of fiscal 2026 as well as the first quarter of fiscal 2027, which allows a short sequence to be read. It should be read with the caveats that follow it.

Across fiscal 2026, gross margin drifted down each quarter, from 69.0% to 67.2%, before recovering to 67.8% in the first quarter of fiscal 2027. Operating margin declined from 48.9% to 45.1% over the same four quarters and then rose to 49.8% in the latest quarter. The step-up of nearly five points from the fourth quarter of fiscal 2026 is the largest sequential move in the series, and one quarter is not enough to call it a trend.

The series also shows why net income should not be used alone to judge the period. Net income in fiscal 2026 ranged from $27.7 billion to $38.5 billion, but non-operating items ranged from a $3.7 billion expense to a $10.0 billion gain. Operating income moved in a much narrower and steadier range relative to revenue.

For the full fiscal year ended June 30, 2026, the company's 10-K data show revenue of $331.84 billion, gross profit of $225.47 billion and operating income of $155.24 billion, implying gross margin of about 67.9% and operating margin of about 46.8%. The fiscal 2027 quarter is the first in the data set on the new fiscal year, so it cannot yet show a full-year pattern.

A few points are outside what this 10-Q and the surrounding data can establish. The filing reported the quarterly lines above, but the data reviewed does not break revenue or operating income into business segments for this quarter, so this piece makes no claim about which segments drove the margin change. The company did not, in the data reviewed, explain the drivers of the 1.2-point decline in gross margin or the rise in operating margin in terms of cost categories beyond the lines reported. The fiscal 2026 quarterly series also covers only one prior year, which is too short to separate a structural change in cost mix from a single quarter's timing.

The structure is clear enough to describe. A business with roughly $92 billion of quarterly revenue reported gross margin near 68%, operating margin near 50%, R&D near 10% of revenue and G&A near 2%. Its reported net income depends on tax and on non-operating items that can swing by billions of dollars from quarter to quarter, so the operating line is the better guide to the underlying business in any single period. Readers who want to weigh the durability of those margins will need more quarters of the same line items, and the company's own discussion of cost drivers in its filings, before drawing conclusions.