Office Home & Business 2021
One-time purchase for 1 PC or Mac
Classic 2021 versions of Word, Excel, PowerPoint, and Outlook
Microsoft support included for first 60 days at no extra cost
Compatible with Windows 11, Windows 10, or macOS*
Works with Microsoft Teams
*Go to aka.ms/systemrequirements for compatible versions of Windows 11, Windows 10 and macOS and for other feature requirements.

Key benefits
The essentials to get it all done. Office Home and Business 2021 is for families and small businesses who want classic Office apps and email. It includes Word, Excel, PowerPoint, and Outlook for Windows 11 and Windows 10. A one-time purchase installed on 1 PC or Mac for use at home or work.

What’s the difference between Microsoft 365 and Office 2021?
Microsoft 365 is a subscription that comes with premium apps like Word, Excel, PowerPoint, OneNote, Outlook, Publisher, and Access (Publisher and Access available on PC only). The apps can be installed on multiple devices, including PCs, Macs, iPads, iPhones, Android tablets, and Android phones. Microsoft 365 also comes with services like 1 TB of OneDrive storage, 60 Skype minutes per month, and Microsoft chat and phone support. With a subscription, you get the latest versions of the apps and automatically receive updates when they happen.

Office 2021 is a one-time purchase that comes with classic apps like Word, Excel, and PowerPoint for PC or Mac, and does not include any of the services that come with a Microsoft 365 subscription. One-time purchases don’t have an upgrade option, which means if you plan to upgrade to the next major release, you'll have to buy it at full price.

How do I know if my computer, mobile device, or browser can run Office?
To see if your computer, mobile device, and/or browser can run Office, please visit the Office system requirements page.

Do I need internet access to run Office?
Internet access is required to install and activate Office, but not to use Office apps such as Word, Excel, and PowerPoint once you have these fully installed on your computer.

How do I download, install, reinstall, activate, or update Office?
Once you have purchased Office, you can install it from the Services & subscriptions section of your Microsoft Account page.

Go to Office Support for more steps to download, install, reinstall, activate, or update Office.

Are there tutorials on how to use the Office apps and services?
Yes, the Microsoft 365 Training Center has quick start guides, cheat sheets, tips and tricks, and training courses on how you can make the best use of Office.