Microsoft Q1 FY2027: Azure up 48%, but capital spending doubled to $39.4B and free cash flow fell 27%

Azure grew 48%, and Microsoft spent most of the extra cash building more of it

Microsoft's fiscal first quarter of 2027 covers July to September 2026 (its fiscal year ends June 30). Revenue rose 19% to $92.3 billion. Azure, the cloud computing rental business, grew 48%, faster than the 43% of the previous quarter, and supplied $10.8 billion of the $14.6 billion revenue increase. Operating income rose 21% to $45.9 billion. Reported diluted earnings per share (EPS) rose 32% to $4.92, but most of the gap between that and operating growth is an accounting comparison: a year ago a $3.1 billion loss on Microsoft's OpenAI stake pulled profit down, and it did not repeat. On Microsoft's own adjusted measure, which strips out OpenAI, EPS rose 18% to $4.89. The other side of the quarter is cash. Capital spending, mostly on AI data centers, roughly doubled to $39.4 billion, and the cash left after that spending fell 27%.

This analysis is written from the earnings release (Form 8-K, Exhibit 99.1, filed October 28, 2026). The full 10-Q has not been filed yet, so the management commentary that usually explains each line (the MD&A), the Microsoft Cloud gross margin, and the detail behind some cash-flow lines are not available here. Microsoft also gives its numeric guidance on the earnings call rather than in the release, so none is quoted below.

The numbers

Gross margin is the share of revenue left after the direct cost of delivering products, such as running data centers. Operating margin is the share left after all running costs, before interest and tax. Commercial remaining performance obligation (RPO) is revenue business customers have signed contracts for but Microsoft has not yet delivered: a backlog.

As in fiscal 2026, the two margins moved in opposite directions. Cost of revenue rose 24%, faster than revenue, so gross margin fell 1.3 points. Operating expenses rose only 6%: research and development rose 11%, sales and marketing was flat at $5.7 billion, and general and administrative rose 4%. Holding overhead nearly still while revenue grew 19% is what lifted operating margin to 49.8%. Each dollar of revenue cost more to deliver, and Microsoft made up for it by keeping selling and administrative costs nearly flat.

Where the growth came from

Microsoft changed how it reports its businesses this year. Announced in September 2026, the old three segments are replaced by two, and the release recasts last year's figures to match, so the comparison is like for like.

Operating margin in brackets is the same quarter a year ago.

Agents and Infra (Azure, Microsoft 365 commercial, industry software) is now 83% of revenue. Its revenue rose 24.5%, but its cost of revenue rose 35%, so its margin slipped from 53.1% to 52.8%. That is the data-center bill showing up inside the segment. Within it:

• Azure revenue was $33.2 billion, +48%, with almost no help from currency (48% at constant exchange rates too). It added $10.8 billion of revenue, 74% of the company's total increase.
• Microsoft 365 commercial cloud grew 17% reported. Microsoft says it was 18% "normalized for a 1-point benefit from in-period revenue recognition in the prior year", meaning a one-time accounting boost in last year's quarter makes this year's growth look a point slower than it was. Total Microsoft 365 cloud revenue was $27.8 billion, +17%.
• Industry solutions cloud revenue grew 10%. The older one-time licence business ("productivity and server licensing") fell 3% to $8.4 billion as customers keep moving to subscriptions.

Devices and Consumer (Windows, Surface, Xbox, Bing search) shrank 3%. Windows OEM and Devices revenue, mainly Windows licences sold to PC makers, fell 22% to $3.6 billion, a $1.0 billion drop. Xbox content and services fell 2%. Search and advertising excluding payments to partner sites (traffic acquisition costs) grew 12%. Operating income still rose 2% because cost of revenue fell 8% with fewer hardware sales. As last year, that is a change in what was sold, not efficiency.

Takeaway: The AI build-out is now paying for itself in revenue and not yet in cash. Azure grew 48% and added $10.8 billion of quarterly revenue, but capital spending rose $20.0 billion from a year ago, and free cash flow fell $7.0 billion. Operating margin rose only because overhead stayed flat. That cannot shrink forever, while depreciation and amortization (up 44%) and newly started data-center leases will keep rising.

What the headline numbers hide

Reported EPS growth of 32% is mostly an easier comparison. In the year-ago quarter, losses on the OpenAI investment cut net income by $3.1 billion. This quarter OpenAI added $207 million. That $3.3 billion swing explains 37% of the $8.9 billion rise in net income. You can see it in "other income": it went from a $3.66 billion loss to a $38 million gain. Excluding OpenAI, net income rose 18% to $36.4 billion. There was no sign of a large Anthropic gain like the $3.2 billion one in the fourth quarter of fiscal 2026: total other income, where such a gain would sit, was only $38 million.

Adjusted EPS grew slower than operating income. Operating income rose 21%, but adjusted net income rose 18%. The effective tax rate, the share of pretax profit paid in tax, rose to 20.3% from 19.1% on reported figures. Buybacks did almost nothing for EPS: diluted shares fell just 0.3%, to 7,446 million from 7,466 million.

Operating cash flow ran well ahead of profit. Operating cash flow was $58.0 billion, 1.58 times net income. Much of the gap is costs that are charged against profit without using cash in the quarter: depreciation, amortization and other charges rose 44% to $11.7 billion. Deferred taxes, tax recorded now and paid later, added $4.6 billion, up from $2.5 billion. A quarter-to-quarter fall in receivables (money owed by customers) of $17.1 billion also added cash, but that happens every September quarter after the June year-end billing peak; last year it was $16.5 billion.

Capital spending is only part of the infrastructure bill. On top of $39.4 billion of capital spending, "other" investing outflows were $12.9 billion, more than double last year's $6.2 billion. The fiscal 2026 10-K described this line as "primarily to facilitate the purchase of components"; the release gives no explanation for this quarter. Together the two came to $52.3 billion, more than the $45.9 billion of operating income. Leases also started to arrive: operating lease right-of-use assets, which record leased data centers, rose $6.0 billion in three months to $30.2 billion.

The backlog stopped growing in dollars. Commercial RPO was $677 billion, up 73% from a year ago, but roughly level with the $678 billion at June 30 cited in our fiscal 2026 report. Growth slowed from 84% at year end. A flat backlog in one quarter is not a problem by itself, since large contracts arrive unevenly, but it means this quarter's revenue was drawn from the backlog rather than added to it.

Capital returned. The cash flow statement shows $4.4 billion of buybacks (down from $5.7 billion) and $6.8 billion of dividends (up from $6.2 billion), $11.1 billion in total. The release's own figure is "$10.2 billion" returned; it does not explain the difference, which is likely timing of when dividends were declared versus paid.

On balance the quarter is flattered: reported EPS rose 32%, but 18% once the prior year's $3.1 billion OpenAI loss is set aside, and operating income rose 21%.

Did last time's read hold up?

Our fiscal 2026 analysis and the preview note set out four things to watch.

• Cloud gross margin against 66%. Not answerable yet: the release does not give the Microsoft Cloud gross margin, which comes with the 10-Q. Total gross margin fell 1.3 points year on year, after falls of 1.1 points in the third quarter and 1.4 points in the fourth, so the pressure continued at about the same pace.
• Capital spending against $35.8 billion, and free cash flow. Spending rose again, to $39.4 billion, and free cash flow fell year on year for another quarter, by 27%. That held.
• The reported vs adjusted EPS gap. This quarter the OpenAI effect was small ($0.03 a share), and there was no visible Anthropic mark. The large gap is in the growth rate, because of last year's loss.
• Windows inventory. We said some of the unwind was still ahead. It came: Windows OEM and Devices fell 22%, far more than the 7% fall in the fourth quarter.

We also said fiscal 2027 depended on margins, not demand. Demand held better than expected (Azure accelerated to 48%), and gross margin kept slipping, so that framing still fits.

Outlook

The release contains no numeric guidance; Microsoft gives it on the earnings call. Chief financial officer Amy Hood said "results exceeded expectations across revenue, operating income, and earnings per share" and that Microsoft Cloud revenue growth accelerated to 30%.

Our view: the revenue side is strong and getting stronger. Azure growth went from 43% to 48% while the company was already spending heavily, which suggests new capacity is being filled as it comes online. The cost side is where the next few quarters will be decided. Depreciation, amortization and other charges grew 44% in the quarter while revenue grew 19%, and the $329 billion of leases signed but not yet started at June 30 begin to hit costs from this fiscal year. Microsoft has kept operating margin rising by holding sales and marketing flat. If those charges keep growing twice as fast as revenue, that cushion runs out. For the 10-Q, watch the Microsoft Cloud gross margin against 66%, what the $12.9 billion of other investing outflows were for, and whether the RPO plateau is explained by contract timing.

Source: Microsoft Corporation earnings release for the quarter ended September 30, 2026 (Form 8-K, Item 2.02, Exhibit 99.1, filed October 28, 2026, accession 0001193125-26-436122). Prior-year figures are as recast in that release for the new segment structure. Margins, free cash flow, the effective tax rate, the share of net income growth from OpenAI and the segment cost growth are our calculations from the reported figures.