Microsoft 365 Copilot Pricing (2026): $21 Business vs $30 Enterprise, the License Underneath, and What 10 Seats Really Cost

Microsoft 365 Copilot pricing: the short answer

As of September 2026, Microsoft 365 Copilot costs $21 per user per month for businesses up to 300 users (Microsoft 365 Copilot Business, $18 for the first year on annual plans bought by December 31, 2026) and $30 per user per month for enterprise. Both are add-ons, so you also pay for the Microsoft 365 plan underneath. Buying the suite fresh? Business Standard with Copilot is $23.50 and Business Premium with Copilot is $32, paid yearly. There is no free trial, but Copilot Chat is already free in your tenant. Every number on this page comes from Microsoft's own Copilot pricing, enterprise, and business plan pages, read on September 12, 2026. The part the other pricing pages skip is the bill for ten actual people, and how many of them need the seat at all.

Every Microsoft 365 Copilot price in one table

US prices, per user per month, as Microsoft listed them on September 12, 2026:

Two patterns worth noticing. Every business plan costs exactly 20% more month-to-month than yearly ($25.20 against $21, $38.40 against $32). Enterprise charges only 5% more for monthly payments, because you are still locked into the year. And the no-Teams bundles are $3.20 a seat cheaper, which matters only if your company already runs on Slack or Zoom.

The license underneath: why Copilot is always a second line on the invoice

Microsoft is direct about this on its enterprise page: "A qualifying Microsoft 365 subscription is required to purchase Copilot." The Business add-on is even narrower. Per the plans page footnote, it "is available only to existing Microsoft 365 customers with an eligible Business plan."

So $21 is a real price and never the whole bill. You can buy Copilot two ways. You can add it seat by seat to the Microsoft 365 plan you already pay for, or buy one of the "with Copilot" bundles, which fold the suite and the assistant into one per-user number. The bundle is the only place Microsoft prints the full cost as a single figure. That makes it the honest number for a budget: $23.50 a person on Business Standard, $32 on Business Premium.

Microsoft sells the assistant the way airlines sell seats. The fare is real. It is just never the total.

The $18 promo: read the footnote before you budget

The $18 rate is real, but read the conditions before you build it into next year's budget. Microsoft's footnote, as of September 12, 2026: the discount offer runs from July 1 to December 31, 2026. It requires an annual commitment, it is not available on trial subscriptions, and "promotional pricing applies to the first year only." The subscription auto-renews.

For ten seats, that is $2,160 in year one and $2,520 in year two at today's list price, a $360 jump nobody sends you an email about. Budget the $21. If you still see guides saying the promo ends September 30, go by Microsoft's footnote, which says December 31, 2026.

What 10 seats actually cost

Here is the same ten-person company priced every way Microsoft sells it, using the September 2026 list prices above:

The first three rows are Copilot only. Your existing Microsoft 365 plan stays on the invoice beside them. The bundle rows are suite plus Copilot.

The row that matters is the fourth one. Copilot is priced per user, so you license people, not the company. In most ten-person offices I have looked at, the people who get real value from Copilot inside the apps are the ones whose day is the inbox, the Teams meeting, and the long Word or Excel file. That is usually two to four people, not ten. Buying seats for the other six is how a $756 decision becomes a $2,520 one.

Microsoft 365 Copilot Business vs Enterprise

The split is headcount. Microsoft's business plans, including the Copilot Business add-on, are for organizations up to 300 users, and Microsoft's own FAQ says it can enforce a 300-license limit across the business plan family. Above that, you are on enterprise plans and the $30 add-on. Volume discounts are for enterprise agreement customers, "typically 250+ licenses," which is not a ten-person company's lever.

What the paid license adds is the same idea at both sizes. Per Microsoft's pricing FAQ, a Microsoft 365 Copilot license brings Work IQ (its layer that understands your work context), Copilot inside Teams and the Microsoft 365 apps, and pre-built agents like Researcher, Analyst, and Facilitator. Licensed users can also use assistive custom agents at no additional cost. That in-app part is the product. Summarize this thread in Outlook, draft the deck from the doc, recap the meeting, ask Excel what changed.

Copilot Chat: the free part you already have

Before anyone buys a seat, check what is already on. Microsoft says Microsoft 365 Copilot Chat is "available at no additional cost for all Microsoft Entra account users with an eligible Microsoft 365 subscription." It is web-grounded chat with file uploads and enterprise data protection.

The limit is spelled out on the plans page too. Copilot Chat "doesn't integrate with Microsoft 365 apps or organizational content such as files, emails, or chats." Agents in Chat need an Azure subscription and are billed on a metered basis. And there is no trial of the paid product: Microsoft's FAQ answers "Is there a trial for Microsoft 365 Copilot?" with "No."

That makes Copilot Chat your trial, whether Microsoft calls it that or not. Turn it on for everyone for 30 days. The people who keep bumping into "I wish it could see my email" are your seat list. If your team is confused about which Copilot is which (there are five products with that name), I mapped them on is Copilot free.

Copilot vs ChatGPT and Claude on price

On the per-seat sticker, the three business assistants landed in the same place. As of September 12, 2026, per each vendor's pricing page:

• Microsoft 365 Copilot Business: $21 per user per month yearly, $25.20 monthly, on top of Microsoft 365.
• ChatGPT Business: $20 per Standard seat billed annually, $25 monthly, for teams of 2 to 200, with a Microsoft 365 connector. Full breakdown on ChatGPT Business pricing.
• Claude Team: $20 per Standard seat billed annually, $25 monthly, for teams of 2 to 150, with Claude for Microsoft 365 and Claude for Microsoft Outlook on the plan. How that works is on Claude for Microsoft 365.

So the dollar is not the decision. Copilot's $21 buys the assistant inside the apps your company already lives in, with your tenant's permissions already applied, and nothing new to administer. ChatGPT and Claude are a second vendor, a second admin console, and a second place to work. They do not need Microsoft 365 at all, and they are better at some jobs. My working rule as of 2026: a company that is Microsoft end to end should buy Copilot seats for its inbox-and-meetings people, and put a $20 ChatGPT or Claude seat in front of the people who write and build. The feature-by-feature version is on Copilot vs Claude for business.

Commitment and cancellation: the terms that cost money

Microsoft's plans FAQ lays out three billing shapes, and they behave very differently when you change your mind:

• Monthly commitment, monthly payment: cancel anytime, no penalty. This is the $25.20 price.
• Annual commitment, monthly payment: may incur penalties if canceled early.
• Annual commitment, paid upfront: no refund if canceled before the term ends.

Paid subscriptions get a 7-day window for a prorated refund. After that you own the year. That shapes how I would buy: pay the 20% monthly premium on a handful of seats for 60 to 90 days, see who actually opens Copilot in Outlook and Teams, then move only those people to annual. Paying $4.20 extra per seat for two or three months is cheap insurance against a year of seats nobody uses.

What to do this week

Confirm Copilot Chat is on for everyone. It costs nothing, and it is the only trial you get. Ask who hits its wall in the first month. Buy the Copilot Business add-on month-to-month for those people only. Move the ones still using it to annual before December 31, 2026 if you want the first-year $18, and budget year two at $21 regardless.

If the real question is bigger, like whether the company standardizes on Copilot, ChatGPT, or Claude and what each person should use, that is exactly what the AI Readiness Assessment answers. It is $2,500 flat, takes two weeks, and ends in a written roadmap. The fee is credited in full if we do an install together within 90 days. Either way, don't buy ten seats because the quote said "per user." Buy three, and make the other seven earn theirs.