Microsoft FY26 Q4: Azure Growth Hits 43% as AI Capex Reaches $41 Billion

The numbers, corrected and anchored​

Microsoft's release has Satya Nadella saying that Azure revenue passed $100 billion for the first time this year. He also said Microsoft 365 Copilot reached more than 30 million paid seats. The quarter ended June 30, 2026, and results came out July 29.

One correction to the AlphaStreet text: Q4 operating income was $40.6 billion, not $40.0 billion. Microsoft's full set of Q4 figures:

• Revenue was $90.007 billion, up 18% (17% in constant currency).
• Operating income was $40.603 billion, up 18%.
• GAAP net income was $35.766 billion, up 31%. Diluted EPS was $4.81.
• Non-GAAP net income, which excludes the impact of the OpenAI investments, was $35.286 billion. Non-GAAP EPS was $4.74.

For the fiscal year, revenue was $331.8 billion and operating income was $155.2 billion, up 21%. Net income was $133.7 billion.

Read the earnings quality before the headline​

GAAP net income growth of 31% is flattered by non-operating items. Microsoft cited a $3.2 billion gain on its Anthropic investment. It also cited lower-than-expected Voluntary Retirement Program expenses, partly offset by severance expense and Xbox impairment charges. Together, Microsoft said, these items gave a $0.27 boost to diluted EPS against its April guidance. The company said that after adjusting for them, it still beat expectations on revenue, operating income and EPS.

The takeaway is that operating income growth of 18% is a cleaner read on the core business than the 31% net income figure.

Azure: 43% growth, and what the "constant currency" wording means​

The AlphaStreet text says Azure grew 43% in constant currency. That is correct, but Microsoft's metrics table shows reported and constant-currency growth were both 43% in Q4. The prior quarter was 40% reported and 39% constant currency. For the full year the figures were 41% reported and 40% constant currency.

Two cautions apply:

• Microsoft does not report Azure as a standalone dollar line. The $100 billion figure is a company statement, not a segment total.
• Don't confuse it with Intelligent Cloud revenue. That segment was $39.3 billion in Q4, up 32%.

Directions on Microsoft reports that Microsoft projected Azure growth could reach 45% in Q1 FY27, driven by a mix of AI and non-AI workloads.

Where demand shows up​

• Microsoft Cloud: revenue was $59.3 billion, up 27%.
• Commercial remaining performance obligation (RPO): it rose 84% year over year to $678 billion. CNBC notes that this was 8% higher than the prior quarter, and that Microsoft said the sequential growth came from clients other than AI model developers. RPO is contracted future revenue. It shows commitment, not margin or realized returns.
• AI run rate: in April, Microsoft said its AI business passed a $37 billion annual revenue run rate, up 123%. That is a run-rate disclosure and not a reported quarterly revenue line.
• Copilot: paid seats went from more than 20 million on the Q3 call to more than 30 million at Q4. Microsoft has not disclosed revenue per seat or Copilot profitability.

Not every segment is growing. Windows OEM and Devices revenue fell 7%, and Xbox content and services fell 10%. The AI boom is happening in the cloud and in software. The PC and gaming businesses are shrinking against it.

Capex: the actual spotlight​

This is the part AlphaStreet gestures at without numbers.

• Directions on Microsoft puts Q4 capex at $41 billion, including spending on datacenters and increasingly expensive components. CNBC reports that capital expenditures plus finance leases rose 69% in the quarter.
• Cash-flow-statement additions to property and equipment were $35.8 billion in Q4 and $115.9 billion for the year. That is a different measure from management's capex figure, which includes finance leases.
• Ahead of earnings, GeekWire noted that Microsoft expected roughly $190 billion of calendar-2026 capex. About $25 billion of that came from higher component prices.
• CNBC reports that Amy Hood reiterated the 2026 capital spending plans. She said Microsoft will lengthen the useful life of office and data center buildings to 25 years from 15. She also said more future data center leases will appear as operating leases instead of finance leases.
• According to a Yahoo Finance summary of the call, the useful-life change takes effect in FY27 and affects only the timing of future depreciation, with minimal benefit to FY27 operating income.

The accounting change matters for anyone comparing capex across fiscal years. Some of the headline movement in reported capex and depreciation will reflect classification and useful-life choices, not just physical buildout. Treat year-over-year comparisons with care.

The short-lived assets matter too. Hood said capex is heavily weighted toward short-lived assets such as CPUs and GPUs. In Q3 the company said roughly two-thirds went to such hardware. That mix is part of Microsoft's answer to the oversupply question, because hardware that wears out quickly is less of a long-term stranded-asset risk. It is also why the spending has to keep pace with revenue.

Margins: pressure, now with a Q4 figure​

Microsoft told investors in April to expect Microsoft Cloud gross margin of roughly 64% in Q4. The metrics table shows the actual figure was 65%. That is slightly better than guided, and still down from 68% a year earlier. For the full year it was 66%, versus 69% in FY25.

Management said efficiency gains across the CPU and GPU fleet helped. Hood said demand continues to exceed available supply, and that the Azure acceleration came from efficiency gains that let Microsoft get more out of existing infrastructure. If that holds, utilization is improving even as total spend grows.

Cash flow and capital return​

Cash from operations was $55.4 billion in Q4, up from $42.6 billion a year earlier. For the year it was $182.9 billion, up from $136.2 billion. Microsoft also returned $10.2 billion to shareholders through dividends and buybacks in the quarter.

CNBC reports that Hood said Microsoft should remain cash-flow positive in FY27. "Cash-flow positive" is a low bar for a company generating this much operating cash. The better question is how much free cash flow remains after capex and leases, and the AlphaStreet piece does not quantify it.

What the evidence doesn't prove​

• AI return on invested capital. Microsoft does not disclose it.
• Copilot unit economics. Paid seats are disclosed. Revenue per seat is not.
• The lag between capacity coming online and revenue. Management says new capacity is "immediately monetized," but that is a statement, not a metric.
• Whether paid-seat counts will keep being reported each quarter. That is not guaranteed.

What to watch for IT and Windows readers​

• Capacity constraints. Demand outrunning supply means GPU availability, quota limits and regional capacity can still affect Azure planning. Plan AI workloads with buffers.
• Pricing pressure. Component price inflation is part of the capex story, and customers may eventually see some of it.
• Copilot licensing. With 30 million-plus paid seats against roughly 6% commercial seat growth, Copilot is a growing add-on to a slow-growing seat base. That is a reasonable basis for expecting continued bundling and upsell efforts.
• Windows. The 7% drop in Windows OEM and Devices revenue is a reminder that Microsoft's growth is coming from the cloud, not the desktop.

Bottom line​

AlphaStreet's summary holds up on the main points: Azure is accelerating, the spending is enormous, and the open question is whether returns arrive fast enough. The corrections are the $40.6 billion operating income, the clear split between GAAP and adjusted earnings, and the actual 65% Q4 cloud margin. The new fiscal-year depreciation policy is the detail most likely to affect how FY27 spending and margins read. Microsoft has shown demand, with 43% Azure growth and $678 billion of contracted commitments. It has not yet shown the return on that spending.