The Pulse
Amazon’s AI Buildout Drives $42.4B Trailing Free-Cash Outflow
Amazon reported a $42.4 billion free-cash outflow for the 12 months ended September 30, 2026, attributing the decline primarily to higher spending on property and equipment for AI. AWS revenue rose 39.3% in the third quarter, while Amazon m
AI.info Team · Written with AI · fact-checked ·
Amazon reported a $42.4 billion free-cash outflow for the 12 months ended September 30, a sharp reversal from the $14.8 billion inflow it recorded for the comparable period a year earlier. The company said the decline primarily reflects a $94.8 billion year-over-year increase in net purchases of property and equipment, driven mainly by investments in artificial intelligence. Amazon announced the results on October 29, 2026, alongside third-quarter revenue growth and a record operating margin.
A $57.2 Billion Swing in Trailing Cash Flow
The $42.4 billion figure covers the trailing 12 months, not just the quarter ended September 30. Amazon’s more detailed financial release reports the outflow as $42.357 billion; the company rounded it to $42.4 billion in its earnings summary. A year earlier, trailing free cash flow stood at positive $14.788 billion.
Amazon defines free cash flow as operating cash flow less purchases of property and equipment, net of proceeds from sales and incentives. Operating cash flow rose 29% year over year to $168.3 billion for the trailing period, but net equipment purchases reached $210.7 billion. The difference left free cash flow in the red despite the increase in cash generated by operations.
Amazon Ties the Increase to AI Investment
The company said net property-and-equipment purchases rose by $94.8 billion from the prior-year period and that the increase “primarily reflects investments in artificial intelligence.” The earnings summary does not break out how much of that spending went specifically to AI, or how much went to other property and equipment. Amazon’s figures describe the cash-flow impact of the spending, rather than an accounting loss from its operations.
Amazon reported third-quarter operating income of $28.1 billion, up from $17.4 billion a year earlier, and net sales of $201.9 billion, up 12%. Its overall operating margin reached 13.9%, which the company called its highest ever. The contrast in the results is between stronger operating performance and a large cash commitment to equipment and infrastructure.
AWS Revenue Climbs 39.3%
Amazon Web Services produced $46.0 billion in third-quarter sales, a 39.3% year-over-year increase and its fastest growth in nearly five years, according to the company. AWS operating income rose to $17.8 billion from $11.4 billion in the same quarter last year. Amazon described AWS revenue as running at an annualized rate of $184 billion.
“Our AWS investment in functionality and infrastructure is working, with over 39% year-over-year revenue growth in Q3 ($184 billion revenue run rate) and projected revenue growth rates of over 40% both in 2027 and in 2028,” said Andy Jassy, President and CEO, Amazon. Those figures show the growth Amazon is pointing to as it makes its infrastructure case, while the cash-flow result captures the near-term cost of expanding capacity.
2026 Cash Capital Expenditure Forecast Holds at $220 Billion
Amazon said it continues to expect cash capital expenditures of approximately $220 billion for 2026. That is a full-year forecast; the $42.4 billion free-cash outflow, by contrast, measures the 12 months through September 30. Amazon also forecast fourth-quarter net sales of $240 billion to $247 billion and operating income of $28.5 billion to $33.5 billion.
The forecast gives investors a concrete measure of the spending Amazon expects to sustain through year-end, but the earnings release does not specify how much of the $220 billion will be allocated to AI. For now, the reported balance is clear: trailing operating cash flow reached $168.3 billion, while net purchases of property and equipment were $210.7 billion.