Microsoft Copilot Cost for a Small Business
Microsoft 365 Copilot Business is an add-on priced per person, on top of a Microsoft 365 business plan you already pay for. The list price is $25.20 a seat billed monthly or $21 billed annually, with an $18 first-year promotional price that runs to Dec 31, 2026. Whether that's money well spent depends on who actually works in Word, Excel, Outlook and Teams all day.
Copilot prices
US list prices per user per month, before tax. Checked Oct 12, 2026.
| Plan | Billed monthly | Billed annually | Notes |
|---|---|---|---|
| Microsoft 365 Copilot Business (add-on) | $25.20 | $21 ($18 promo) | Needs a qualifying Microsoft 365 business plan on top. The $18 first-year promo runs to Dec 31, 2026. Microsoft |
The add-on price does not include the Microsoft 365 business plan underneath it, which you pay for separately. Prices change often and vary by region, tax and contract. Check Microsoft's Copilot Business page before you budget.
Worked examples: what Copilot seats cost
Simple arithmetic on the add-on price only, for hypothetical firms. Add your existing Microsoft 365 plan cost on top.
| Seats | Monthly billing ($25.20) | Annual billing ($21) | Promo price ($18) |
|---|---|---|---|
| 1 seat | $25.20 a month / $302.40 a year | $21 a month / $252 a year | $18 a month / $216 a year |
| 3 seats | $75.60 a month / $907.20 a year | $63 a month / $756 a year | $54 a month / $648 a year |
| 5 seats | $126 a month / $1,512 a year | $105 a month / $1,260 a year | $90 a month / $1,080 a year |
| 10 seats | $252 a month / $3,024 a year | $210 a month / $2,520 a year | $180 a month / $2,160 a year |
| 25 seats | $630 a month / $7,560 a year | $525 a month / $6,300 a year | $450 a month / $5,400 a year |
The gap between buying for everyone and buying for the few who need it is usually bigger than the gap between billing options. A hypothetical 10-person firm that licenses 3 heavy users instead of all 10 on annual billing pays $756 a year instead of $2,520.
How it compares with other AI seats
From the same Oct 12, 2026 price check on our AI cost page:
- ChatGPT Business standard seat: $25 monthly or $20 annually, from 2 users (OpenAI).
- Claude Team standard seat: $25 monthly or $20 annually, minimum 2 members (Claude Help Center).
- Google Workspace Business Standard: $14, with Gemini in Gmail, Docs, Sheets and Meet included in the plan itself (Google).
The headline seat prices are close. The real difference is where the AI works: Copilot sits inside your Microsoft documents, mail and meetings, while a standalone chat seat sits beside them.
When Copilot is worth it for a small firm, and when it isn't
Likely worth it
- The person lives in Outlook, Word, Excel and Teams, and your files are in OneDrive or SharePoint where Copilot can reach them.
- They spend real time on meeting summaries, first drafts, email triage or pulling figures out of spreadsheets.
- You can name what they'll use it for in the first month, and someone checks after 60 to 90 days whether they did.
Probably not worth it
- Licensing everyone "to be fair." Unused seats are the most common hidden AI cost.
- Your firm mostly works in Google Workspace, or in specialist software (CAD, practice management, accounting) where Copilot doesn't reach.
- The same people already pay for ChatGPT or Claude and use those daily. Paying for both is usually duplication.
- You expect it to automate a whole process. Copilot helps individuals work faster; a repetitive loop such as invoice processing or contract drafting from templates usually needs a mapped workflow too.
A sensible test: buy a few seats for the heaviest Microsoft users, set a review date, and keep them only if they're used. Our AI cost calculator lets you add Copilot seats alongside other tools and API usage to see your full monthly bill.
Frequently asked questions
How much does Microsoft Copilot cost per month?
Microsoft 365 Copilot Business is $25.20 per user per month billed monthly, or $21 per user per month billed annually, on prices we checked Oct 12, 2026. An $18 first-year promotional price runs to Dec 31, 2026.
Is Copilot included in Microsoft 365?
Not this version. Copilot Business is an add-on bought per person on top of a qualifying Microsoft 365 business plan.
Do I have to buy Copilot for everyone?
No. It's licensed per user, so you can buy seats only for the people who will use it.
Is Copilot worth it for a small business?
For heavy Microsoft users with a clear use in mind, it can be. For occasional users, or firms that already pay for another AI chat tool, it's often duplication.
Spend on AI where it pays
Before you buy seats, map one piece of work and see where AI would actually save time. You'll get a straight answer on whether Copilot, another tool, or no new tool is the right fit.