Microsoft’s fiscal first-quarter 2027 capital expenditures, covering July through September 2026, are shaped primarily by its accelerated AI infrastructure buildout amid sustained Azure demand growth. On its July 29 earnings call, Microsoft guided to reported capex above $50 billion for the quarter after extending data-center and office useful lives from 15 to 25 years, which shifts more leases from finance to operating classification and lowers the reported figure relative to prior analyst estimates around $56 billion. Calendar-2026 expectations were similarly adjusted to roughly $175 billion while underlying investment plans remained unchanged. Actual spending will be confirmed in the company’s upcoming Q1 results, with two-thirds of recent quarterly outlays typically allocated to short-lived GPUs and CPUs to address capacity constraints.