Microsoft delivered a blowout quarter for its cloud business and provided an even stronger outlook, underscoring how the race to build AI infrastructure is yielding immediate financial returns. In a call with analysts, executives revealed that Azure revenue growth jumped to 43% in constant currency for the fiscal fourth quarter, easily outpacing the company’s prior guidance and setting the stage for further acceleration.

“Demand continues to exceed available supply,” CFO Amy Hood said. “When we can make efficiency gains, they are quickly monetized in the quarter.”

She pointed to engineering improvements that squeezed more performance from both CPU and GPU fleets, as well as process changes that shortened the time to bring new capacity online. That fueled Azure’s outperformance, and Hood guided to approximately 45% constant-currency growth in the first quarter of fiscal 2027, accelerating from the already high Q4 level.

The results capped a record fiscal year for the company, with total annual revenue surpassing $331 billion, up 18%. Microsoft Cloud, which includes Azure, Office 365 commercial, LinkedIn, and other services, surpassed $214 billion in annual revenue, a 27% increase.

Financial Snapshot

MetricQ4 FY2026YoY GrowthTotal Revenue$90.0B+18% (+17% CC)Operating Income$40.5B+18%Operating Margin45%+0.1ppEarnings Per Share (adj.)$4.74+23%Gross Margin %67%-1ppMicrosoft Cloud Revenue$59.3B+27%Commercial RPO$678B+84% (incl. OpenAI)

Revenue was led by the Intelligent Cloud segment, which grew 32% to $39.3 billion, while Productivity and Business Processes added 14% to $37.8 billion. More Personal Computing was the lone drag, down 4% to $12.9 billion amid weak PC demand and a tough prior-year comparison from Windows 10 end-of-support upgrades.

AI Demand Drives Capacity Crunch and Efficiency Wins

Azure’s growth was not just a story of volume but of rapid monetization. Hood emphasized that the supply-demand gap remained acute, with spot-market pricing for AI hardware reflecting fierce competition for compute. The improvements in fleet efficiency meant that as soon as incremental capacity became available, it was absorbed by customers. The company added 31 new data centers in the quarter, bringing the fiscal-year total to 88, and expects to roughly double its overall capacity in two years.

“The improvement came from efficiency gains in both CPU and GPU fleets, as well as process improvements that shortened lead times to bring capacity online,” Hood explained in response to an analyst question about Azure’s trajectory. “That dynamic drove the acceleration in Q4 and is part of the expected Q1 trajectory.”

The strong top-line performance was not limited to infrastructure. CEO Satya Nadella highlighted that Microsoft’s platform approach—letting customers mix and match models from OpenAI, Anthropic, Mistral, and its own MAI family—is gaining traction. The number of customers building with models from multiple providers increased fivefold since the start of the year. Nadella positioned this as a strategic imperative: enterprises must control their own “token capital” and not outsource their core IP.

“The models are an input, not some extraction of the knowledge of the enterprise,” he said. “You’ve got to keep your harness separate from the model. The harness will ensure that your memory, your context, all of that is external. That means any given model at any given time is swappable.”

Copilot Momentum: 30 Million Paid Seats and a New Suite

On the application side, the quarter marked a breakthrough for Microsoft 365 Copilot. Paid seats exceeded 30 million, with net additions more than doubling sequentially. Time to active usage has collapsed from months to days, and weekly engagement is now on par with Outlook and Teams. Large-scale deployments accelerated: the number of customers with over 50,000 seats rose more than sevenfold year-over-year.

Nadella credited a rapidly evolving product shape. Copilot now integrates chat, co-work, autopilots, and code into a single “super app,” and it is deeply wired into enterprise governance and business processes through Agent 365. “This is the first time where you really have an enterprise-wide tool, which has both a per-seat and usage-based pricing,” he said. “The TAM is much more expansive.”

The new E7 suite, which bundles Copilot, E5, Entra, and Agent 365, showed early promise. Just two months after launch, hundreds of enterprise customers had already purchased millions of seats. EY deployed E7 to 400,000 employees in the quarter’s largest win. Hood noted that E7 provides IT departments with observability and manageability of token spend, a feature she expects will drive further adoption.

Usage-based billing is also expanding the revenue base. Copilot Cowork introduced consumption pricing earlier in the month, and GitHub Copilot’s June shift to a usage model boosted quarterly revenue acceleration above 60%. In Dynamics 365, consumption-based credit usage in customer service rose fourfold sequentially.

CapEx Surge and ROI Confidence

Capital expenditures reached $41 billion in Q4, with roughly two-thirds going to short-lived assets like CPUs and GPUs. For Q1, the company expects CapEx to exceed $50 billion, partly because of a lease reclassification triggered by extending the useful life of data centers and office buildings from 15 to 25 years. That accounting change shifts many future data center leases from finance to operating leases, which are not captured in CapEx, but does not alter investment plans.

Hood fielded multiple questions about return on investment and the risk of overbuilding. She stressed that the flexibility of hyperscale infrastructure—with short lead times for the bulk of spending and a diverse, global book of business—gives Microsoft room to adjust. “If the demand environment changes, you just slow down what is, in fact, the largest component, right, and the driver of COGS,” she said.

As for margin impact from rising component prices, both executives argued that the cloud still offers superior value versus on-premises purchases, and that a combination of silicon diversity, model efficiency, and product-mix optimization will sustain profitability. Nadella added, “You’ve got to run an efficient railroad. You have to sort of monotonically work at it. We are very focused on all of those.”

Outlook: Cloud Strength, PC Headwinds

For the first quarter of fiscal 2027, Microsoft guided total revenue between $89.85 billion and $90.95 billion, representing growth of 16% to 17%. The Intelligent Cloud segment is expected to grow 33%–34%, propelled by Azure’s approximately 45% constant-currency acceleration. However, the More Personal Computing segment will remain under pressure: Windows OEM and devices revenue is forecast to decline in the low-20s, driven by higher component costs, elevated channel inventory, and a tough prior-year comparison.

The company expects full-year fiscal 2027 to deliver double-digit revenue and operating income growth, with operating margins down less than one point. Capital expenditures will increase year-over-year, and free cash flow is expected to remain positive.

In sum, the quarter demonstrated that the AI infrastructure build-out is translating directly into top-line momentum, especially in Azure, while the company’s application layer is scaling rapidly through a combination of per-seat licensing and consumption models. The biggest question mark remains the PC market, but for now, AI demand is overwhelming any concerns about near-term hardware weakness.