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Note: Microsoft 365 Family isn't available in all markets.

Microsoft 365 is a subscription service that makes sure you always have the most up-to-date modern productivity tools from Microsoft. There are Microsoft 365 plans for home and personal use, as well as for small and midsized businesses, large enterprises, schools, and non-profits.

Microsoft 365 plans for home or business include the robust Office desktop apps that you’re familiar with, like Word, PowerPoint, and Excel. You also get extra online storage and cloud-connected features that let you collaborate on files in real time. With a subscription, you'll always have the latest features, fixes, and security updates along with perennial tech support at no extra cost. You can choose to pay for your subscription on a monthly or yearly basis. The Microsoft 365 Family plan also lets you share these subscription benefits with up to five additional people. 

Most of the Microsoft 365 plans for business, schools, and non-profits include the fully installed desktop apps, but Microsoft also offers basic plans with the online versions of Office, file storage, and email. You decide what works best for you: Small business, Enterprise, School, or Non-profit.

Office 2021 is sold as a one-time purchase, which means you pay a single, up-front cost to get Office apps for one computer. One-time purchases are available for both PCs and Macs. However, there are no upgrade options, which means if you plan to upgrade to the next major release, you'll have to buy it at full price.

Office for the web is a free version of Office that you can use in a web browser. All you need is to sign up for a Microsoft account with a new or existing email address. Try the Office for the web apps.

Not sure what you have now? See What version of Office am I using?

Ready to install Office? See Install Office on your PC or Mac.

Looking for product details and prices?

Buy or try Microsoft 365

Compare Microsoft 365 subscription with Office 2021 (one-time purchase)

One-time purchase (Example: Office Home & Business 2021)

Microsoft 365 subscription
(Example: Microsoft 365 Family*)


Pay a single, one-time cost.

Pay a small monthly fee, or save by paying for a full year.

Office applications


Get Office apps like Excel, Word, and PowerPoint.


Get the fully installed and latest versions of Excel, Word, PowerPoint and Outlook, and OneNote for Windows or Mac. You'll always get the latest features, new tools, security updates, and bug fixes. (PC users also get Access and Publisher.)

Feature updates

Not included

Security updates are included, but you won’t get any new features. Upgrades to major releases aren't included.


Your apps will always be improving. You'll get all the latest features and updates, as well as security updates and bug fixes.

Install Office on more than one computer (Mac or PC)

Not included

One-time purchases can be installed once on either a PC or Mac.


You can install Microsoft 365 Family or Personal, on all your devices and sign in to five at the same time―that means you can use the Office apps no matter where you are or what device you’re on. This includes PCs, Macs, tablets, and phones. With Microsoft 365 Family you can also share your subscription with up to five other people.

Advanced features on tablets and phones

Not included

Install the mobile apps for free and get basic editing features on tablets or phones under 10.1 inches.


Install the mobile apps for free and get extra features when you sign in to Office apps on your device.

Extra online storage

Not included

Not included.


Securely store your files in the cloud and access them from anywhere. Get 1 TB of OneDrive cloud storage and with Microsoft 365 Family you get 1 TB per user, for up to 6 users including yourself. (Microsoft 365 Family).

Technical support is included

Not included

Initial technical support is included for installing only.


Contact us throughout your subscription at no extra cost for help with technical issues, or for subscription and billing support.

* This Microsoft 365 subscription isn't licensed for commercial use.


Choose an option below to get pricing info.

Compare prices

Microsoft 365 subscriptions

For home or personal use:

Microsoft 365 Family (share with up to 5 additional people)

Microsoft 365 Personal (for one individual)

For business use:

Compare Microsoft 365 small and midsized business plans (up to 300 users)

Compare Microsoft 365 enterprise plans

For non-profits:

Microsoft 365 Nonprofit plans

One-time purchases of Office

Office Home & Student 2021

Office Home & Business 2021

Office Professional 2021

Yes. You can buy standalone versions of Word, Excel, and PowerPoint for Mac or PC. Go to the Microsoft Store and search for the app you want.

You can also get a one-time purchase or a subscription version of Visio or Project, available for PCs only. Buy Visio or buy Project.

Microsoft 365 subscriptions and Office 2021 can be installed on either Mac or PC. Compare prices

You don't need to be online to use Office after it is installed and activated on your devices. However, you will need internet access initially to install and activate Office, to install any updates, and to manage your billing. Internet access is also required to access documents stored on OneDrive, unless you install the OneDrivedesktop app. However, after your Office applications (like Word, PowerPoint, and Excel) are installed, you can use them offline.

You should connect to the internet regularly to keep your version of Office up to date and benefit from automatic upgrades. If you don’t connect to the Internet at least every 39 days, your applications will go into reduced functionality mode, and you might see an unlicensed product error. To reactivate your Office applications, simply reconnect to the internet and sign in to Microsoft 365. Learn how to sign in.

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See Also

Find out which Office is right for you

What's new in Microsoft 365

Install Office on your PC or Mac

Need more help?

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