Microsoft recorded $10 billion in revenue from its commercial arrangements with OpenAI in the quarter ended September 30, 2026, according to its regulatory filing. Why it matters: that is nearly 11% of Microsoft’s entire quarterly revenue, a hard number for how deeply the two companies’ finances remain tied together even as they compete.
October 29, 2026
What the filing says
TechCrunch reported the disclosure from Microsoft’s filing on Wednesday. The $10 billion, which includes revenue-sharing payments, compares with Microsoft’s total quarterly revenue of $92.3 billion. The quarter is the first of Microsoft’s fiscal 2027, since its financial year begins in July.
For the full 2026 fiscal year, revenue from OpenAI hit $24.1 billion. At the latest quarter’s pace, that would be about $40 billion a year — an annualized calculation from one quarter, not a forecast or guidance from Microsoft.
The filing does not break out how much of the $10 billion came from revenue sharing and how much came from Azure cloud services. TechCrunch said it had asked Microsoft for more information.
The other numbers in the same disclosure
Microsoft also reported $7.2 billion in outstanding receivables from OpenAI at the end of September, up from $6 billion at the end of June. Receivables are amounts owed for previous transactions; they are not additional revenue on top of the $10 billion.
Microsoft’s ownership stake in OpenAI slipped slightly over the quarter, from about 25% in June to about 24% in September.
The underlying arrangement, as previously reported, is two-way: OpenAI reportedly shares 20% of its revenue with Microsoft — a percentage neither company has publicly confirmed — under a deal tied to Microsoft’s investment of more than $13 billion. An April 2026 agreement keeps that revenue sharing in place through 2030, subject to a cap, even as OpenAI works with competing cloud providers.
Why it matters
Investors have debated for two years how much of Microsoft’s AI growth is really OpenAI passing money back and forth. This filing does not settle that debate — the Azure versus revenue-share split is exactly the piece Microsoft did not disclose — but it does put a floor under the scale: $10 billion in one quarter, and a receivables balance that grew by $1.2 billion in the same period. For anyone buying AI tools, the practical read is simpler: Microsoft and OpenAI remain financially locked together at a scale no other AI partnership matches, whatever their product rivalry looks like from the outside.
Frequently asked questions
How much revenue did Microsoft get from OpenAI last quarter?
$10 billion in the quarter ended September 30, 2026, from commercial arrangements including revenue-sharing payments — nearly 11% of Microsoft’s $92.3 billion total quarterly revenue.
What are the $7.2 billion in receivables?
Amounts OpenAI owed Microsoft for previous transactions at the end of September, up from $6 billion at the end of June. They are a balance-sheet item, not extra revenue.
How big is Microsoft’s stake in OpenAI now?
About 24% at the end of September, down from about 25% at the end of June, according to the filing as reported.
Sources: TechCrunch, Microsoft regulatory filing via TechCrunch