Usage-based billing for AI experiences will be turned on across your tenant at a $40/user/mo budget limit by default with any Copilot Business purchase from Oct 19 (Dec 1 for CSP purchases).
Two simple changes in MC1476200 made on October 1 have completely changed my perspective on the blast radius of this update. When I posted about it previously on Sept 23, my reading was this applied only to new subscriptions, not to every new license, and that the default budget limit would be what we already see in current UX, $10/user/mo. But with the new Message Center clarifications, it becomes clear that I was wrong.
What now appears to be the case:
1️⃣ Make any new license purchase of Copilot Business and a default spending policy covering every Copilot user in your tenant will be created if one doesn't already exist.
2️⃣ That spending policy will be set with a limit of 4,000 Copilot Credits or $40/user/mo.
What is still unclear:
1️⃣ Whether that spending policy is truly created with a per-user limit, or will just have an aggregate of 4,000 credits multiplied by the number of users in your tenant. If it is a per-user limit, then the question becomes what the aggregate policy-wide limit will be.
2️⃣ Whether there is any notification or control in the UX at the point of purchase to limit or decline this spending policy creation, or whether it just happens silently in the background.
Until there are specific answers to these questions, it is vital that anyone purchasing a Copilot Business license after Oct 19 (Dec 1 for CSP) understands that a spending policy may be created and, if that is different from what your organization wants or has planned for, has the ability to delete or modify it. In most cases those who can buy licenses have access to Copilot Cost Management, but this will not always be the case depending on your setup.
Where a business has Copilot deployed and no spending policy, I doubt that's often down to a lack of information. It's usually a deliberate decision. In that light, Microsoft's narrative that it is "now making it easier to access eligible usage-based AI experiences" is a little difficult to get behind. And depending on how the UX of these changes works, and whether this standard spreads to other licenses, a change that is inconvenient for some customers now risks eroding trust more broadly, where stated license prices become a "starting from" sticker with a lot of fine print.
My hope is that more clarity comes prior to Oct 19 and that due consideration has been given both to making usage-based billing simple to set up and to respecting the decision some businesses will make not to enable it. I work every day with SMBs that are the audience for Copilot Business, and I suspect budget discussions there look somewhat different than they do at Microsoft, and the potential for nearly $500/user of additional spend per year feels a lot more significant.
First posted on Linkedin on 10/6/2026 → View Linkedin Post Here