An agent working overnight in your Microsoft 365 tenant doesn’t check the invoice. That’s the failure mode in the new Microsoft Copilot, and it’s why the usage meter matters more than the three new tools. Set a per-user spending limit, put a name on the bill, and switch nothing on until both exist.
Microsoft announced the update on Friday, September 25. None of it is generally available yet. The pieces are rolling out through Microsoft’s Frontier programme, several of them still in preview, so you have a short window to set rules before your staff start asking for access.
Key points
- What did Microsoft add to the new Microsoft Copilot? Four things. Home is the front door for questions and drafting.
- What changes when billing is usage-based by default? The cost stops being predictable. A seat licence costs the same whether someone uses it or not.
- What should an admin set before switching anything on? Four settings, in this order, all under Copilot and Cost management in the Microsoft 365 admin center.
- What’s the most a 25-person firm could be charged? About $1,000 a month in credits, on top of seat fees.
What did Microsoft add to the new Microsoft Copilot?
Four things. Home is the front door for questions and drafting. Code builds small apps and automations from a prompt, using sandboxes. Autopilot is a persistent agent that can watch channels and follow up on threads within the permissions it’s given. Today, a command centre that surfaces what you’ve missed, comes later.
Computing’s report describes Autopilot as a cloud-hosted personal agent with its own identity and memory. That’s the one to take seriously. An agent that acts on its own sits closer to a new hire than a new button, and we’d treat it that way, with a defined job, a defined access list and someone responsible. Our AI agent incident plan lays out what to write down first, and our AI agent security checklist covers the access list. For the older seat-based setup, see our Microsoft Copilot pricing and setup guide.
Picture the failure concretely, and note it’s our illustration, not an incident. A team lead asks Autopilot to keep an eye on a busy channel and follow up on threads. Nobody sets an end date. The agent runs every day, on metered services, and the first anyone hears of the cost is a finance email in the second week of the month. Nothing malfunctioned. Nobody had set a limit.
What changes when billing is usage-based by default?
The cost stops being predictable. A seat licence costs the same whether someone uses it or not. A metered service costs what it’s used for, which can be far less for light users and far more for heavy ones, or for an agent that runs unattended. ChannelE2E, citing CRN, also reported the billing default and the new cost management tools.
Microsoft’s documentation on Copilot Credits lists what consumes them, including Cowork, advanced work in SharePoint and OneDrive, the Work IQ API and a managed runtime. It says new supported services are covered automatically in a spending policy by default unless an admin turns that off. Look at that setting first. A new feature that starts spending your money without a decision is how a small overage becomes a large one, a pattern we described in our piece on off-balance-sheet AI spending.
The dates moved. Reports at launch said Copilot Business licences would switch to usage-based billing by default from November 2. On October 1, Microsoft’s Partner Center announcement pushed the default-on date for new licences bought through resellers to December 1 and set the default limit at 4,000 Copilot Credits per user per month, which admins can change. Existing subscriptions weren’t mentioned as changing. Copilot Business is aimed at businesses with up to 300 seats per tenant, and Canada wasn’t on the list of markets excluded at launch.
What should an admin set before switching anything on?
Four settings, in this order, all under Copilot and Cost management in the Microsoft 365 admin center. Then a fifth thing that isn’t a setting. Do them before the first pilot user gets access, because an alert you add after the first overage is a post-mortem.
- A per-user monthly limit. Start at or below Microsoft’s 4,000-credit default.
- An alert at a percentage of that limit, so the owner hears about it at 70% rather than 100%.
- An owner for the bill, ideally someone in finance with read-only access.
- A decision on whether new services join the spending policy automatically. We’d say no.
The documentation says admins can set limits at policy and user level, configure alerts, and give reader roles to people who only need to look at spending. That’s enough to run a sensible pilot with five people. The fifth thing is the habit: nothing new goes live without a limit attached, the same approval rule we recommend in our Slack code agents approval rules. For choosing among assistants before you commit, our ChatGPT, Claude and Gemini comparison is a decent companion.
If you are still choosing a plan, start with what Microsoft Copilot costs in Canada and how to set it up before the usage meter starts.
Email is where most teams first see a return on Copilot. We laid out a simple AI email workflow that keeps a person on every reply.
What’s the most a 25-person firm could be charged?
About $1,000 a month in credits, on top of seat fees. A third-party advisory firm, EPC Group, reports Copilot Credits at $0.01 each at pay-as-you-go rates, a price Microsoft’s own pages don’t state. Cap each of 25 people at 4,000 credits and the ceiling is 25 x 4,000 x $0.01. That’s a worst case, not a forecast.
Two inputs there deserve suspicion. The credit price is a third party’s figure, and reports disagree on the default limit; one reseller article gave $10 per user, which doesn’t match Microsoft’s later partner notice. If Microsoft publishes its own per-credit price, redo the sum. The sum is the point, though. A limit turns an open-ended bill into a number you can approve in advance.
How do you decide who keeps the metered tools?
At 30 days, ask three things of each person: what they ran, what it cost, what it replaced. Anyone whose use is low loses access to the metered tools. Anyone whose use is high and valuable gets a higher cap, on purpose. A limit isn’t there to stop spending. It makes every increase a decision somebody owns.
Switch on one new thing at a time, for named people. If Autopilot arrives in your tenant in October, it goes to two people with a written job description, not to everyone on the same afternoon.
Metered billing isn’t the villain here. Most seats go unused most days, and if your team uses AI in short bursts a meter may well beat a flat fee. The firms that get hurt will be the ones that leave the defaults alone and find out at month end. We’d change this advice if Microsoft published a flat cap admins couldn’t accidentally exceed. Our read of what the new tools do comes from press descriptions, since none was generally available when this ran, and the first full billing cycle will show whether the details held. For a check on what other firms actually pay for, the Ramp AI Index tracks business spend by vendor.
Frequently asked questions
What is the new Microsoft Copilot?
It’s a redesign built around Home, Code and Autopilot, with a command centre called Today to follow. It’s rolling out through Microsoft’s Frontier programme over the coming weeks.
Will my Copilot bill become usage-based?
Reports said Copilot Business licences would move to usage-based billing by default from November 2. Microsoft later said new licences bought through resellers would default to it on December 1. Check your own agreement.
How do I stop surprise Copilot charges?
Set a per-user monthly limit, set alerts at a percentage of it, give finance read-only access, and decide whether new services join your spending policy automatically.
Archive entry dated September 28, 2026, written and fact-checked on October 8, 2026. Sources are linked on the claims they support.
