Try or buy a Microsoft 365 subscription
Microsoft 365 is a complete solution that combines Office 365 and Windows 10 with advanced security and device management. If you already have a subscription and you want to trial or buy a Microsoft 365 subscription, the best way to do it is through the admin center. The following Microsoft 365 subscriptions are available in the admin center for you to try or buy now:
Microsoft 365 Business
Microsoft 365 Enterprise E3
(Coming soon!) Microsoft 365 Enterprise E5
When you add a subscription through the admin center, the new subscription will be associated with the same organization (domain namespace) as your existing subscription. This makes it easier to move users in your organization between subscriptions or assign them a user license for the additional subscription they need.
Trial or buy a Microsoft 365 subscription
Sign in to the admin center at https://admin.microsoft.com, and then go to Billing > Purchase services.
On the Purchase services page, find the Microsoft 365 plan that you want to try or buy.
You'll see the subscriptions that are available to your organization. Any subscriptions that you've already purchased are identified like this.
Use CTRL + F on your keyboard to use the browser's search, and then search for Microsoft 365. You'll see all of the Microsoft 365 subscriptions available.
After you've found the Microsoft 365 subscription that you'd like to buy or try, mouse over or tap the subscription. You can Start free trial, which gives you 25 user licenses for a one-month term, or you can Buy now.
If you start a free trial, skip to step 7.
If you buy, enter the number of user licenses you need and choose whether to pay each month or for the whole year, and then Add to Cart.
Your cart opens. If your cart disappears from the screen, select Cart to reopen it, review the order and then select Check Out.
Review the pricing information and select Next.
Provide your payment information, and then select Place order.
On the confirmation page, select Continue.
After getting the new subscription, you have to assign a license to the users who will use that subscription. To learn how, see Assign licenses to users in Office 365 for business.