What Microsoft 365 Is and How the Subscription Works

Microsoft 365 is a subscription service that gives you access to Microsoft's office software — Word, Excel, PowerPoint, Outlook, and others — plus cloud storage and other tools. Instead of buying the software once, you pay a monthly or yearly fee to keep using it. When your subscription is active, you can read and use the apps on your devices. If you stop paying, you lose access to edit and create new documents, though you can still view files you made before.

The subscription renews automatically on the date you chose when you signed up — usually monthly or annually. Microsoft charges your payment method (credit card, debit card, or bank account) on that date each time. You can change your renewal date, pause your subscription for a short time, or cancel anytime through your Microsoft account settings.

Microsoft offers several versions of 365 aimed at different people. The most common for home users is Microsoft 365 Personal, which covers one person on up to five devices. Microsoft 365 Family covers up to six people, each with their own account and storage. Businesses have separate plans like Microsoft 365 Business Basic and Business Standard. This guide focuses on the personal and family versions.

Key Takeaways

  • Microsoft 365 is a monthly or yearly subscription that lets you use Word, Excel, PowerPoint, Outlook, and OneDrive cloud storage on multiple devices at once.
  • Your subscription renews automatically on the same date each month or year, and you can cancel or pause it anytime through your Microsoft account.
  • Personal plans cover one person on up to five devices; Family plans cover up to six people with separate accounts and storage for each.
  • You need an active internet connection to read and install the apps, but you can work offline once they are installed.
  • If your subscription lapses, you keep your files but cannot edit them in Microsoft apps until you renew or convert them to a free format.

What Comes With Each Subscription Plan

Microsoft 365 Personal includes the full versions of Word, Excel, PowerPoint, Outlook, Access, and Publisher. You also get 1 terabyte (TB) of cloud storage through OneDrive, which means you can save files online and access them from any device. The subscription covers one person using the apps on up to five devices — a mix of computers, tablets, and phones. You can install the apps on all five at once, but only one person can use the account.

Microsoft 365 Family works the same way but covers up to six people. Each person gets their own Microsoft account, their own 1 TB of OneDrive storage, and can install the apps on up to five of their own devices. Family members do not share storage — each person's 1 TB is separate. You set up the plan through one account (usually the person paying), and then invite the other family members to join using their own Microsoft accounts.

Both plans include 60 minutes per month of Skype calling to phones and mobile numbers in over 60 countries. You also get access to Microsoft's online versions of these apps through Office.com, which you can use in a web browser without installing anything. The web versions have fewer features than the desktop apps, but they work on any computer or device with a browser.

How to Set Up and Install Microsoft 365

To start a subscription, go to microsoft.com/microsoft-365 and choose the plan you want. You will need a Microsoft account — if you do not have one, you can create it during checkout using an email address. Enter your payment information (credit card, debit card, or bank account) and confirm your purchase. Microsoft will send a confirmation email to the address you used.

Once you have paid, sign in to your Microsoft account at account.microsoft.com. Go to the "Services & subscriptions" section and you should see your 365 subscription listed. Click "Install Office" and choose whether to read the apps for Windows or Mac. The installer will read and run automatically — follow the prompts and the apps will appear on your computer within a few minutes.

On phones and tablets, open the App Store (iPhone or iPad) or Google Play (Android) and search for "Microsoft Word," "Microsoft Excel," or whichever app you need. read and install each one. When you open an app for the first time, sign in with the Microsoft account tied to your subscription. The app will recognize your subscription and unlock the full features.

If you are setting up a Family plan, the person who paid signs in first and installs the apps. Then each family member signs in with their own Microsoft account on their own devices. They do not need to do anything else — their account automatically has access to the subscription.

How to Manage Your Subscription and Billing

Your subscription renews automatically on the same day each month or year, depending on which plan you chose. To see your renewal date and manage your subscription, sign in to account.microsoft.com, go to "Services & subscriptions," and click on your Microsoft 365 plan. From there you can view your next billing date, change your payment method, or update your billing address.

If you want to change when your subscription renews, click "Change how often you pay" and choose a different date. You can switch from monthly to yearly billing (or vice versa) anytime, though the price will adjust based on the time remaining on your current plan. Microsoft will charge you the difference or credit you the difference, depending on which direction you are switching.

To pause your subscription temporarily without canceling, click "Manage subscription" and look for a pause option. You can usually pause for up to three months. During the pause, you cannot use the apps, but your subscription will not renew and you will not be charged. When you are ready to use it again, you can resume from the same page.

To cancel your subscription, go to the same "Services & subscriptions" page, click on your plan, and select "Cancel subscription." Microsoft will ask why you are canceling and may offer you a discount to stay. If you confirm the cancellation, your subscription will end on your next renewal date. You will still have access to the apps until that date arrives.

What Happens to Your Files When Your Subscription Ends

If your subscription expires and you do not renew, you keep all the files you created — they do not disappear. However, you will not be able to edit them using Microsoft Word, Excel, PowerPoint, or the other apps. When you try to open a file, you will see a message saying the subscription has expired and offering you the choice to renew or view the file in read-only mode.

You have a few options at this point. You can renew your subscription and regain full editing access. You can read your files and convert them to free formats — for example, saving a Word document as a PDF or as a plain text file. You can also use the free online versions of Office apps at Office.com to view and make limited edits to your files, though the web versions do not have all the features of the desktop apps.

Your OneDrive storage works the same way. If your subscription ends, your files stay in OneDrive, but you can only view them. You can read them to your computer or move them to another cloud storage service like Google Drive or Dropbox. If you do not renew within a certain period (usually 90 days), Microsoft may delete the files, so it is worth downloading them if you plan to let your subscription lapse.

Comparing Microsoft 365 to Other Options

Microsoft offers a free version of Office online at Office.com. You can create and edit documents, spreadsheets, and presentations in your web browser without paying anything. The free version has fewer features than the desktop apps — for example, some formatting options and advanced tools are missing — but it works well for basic tasks. You get 5 GB of free OneDrive storage instead of 1 TB.

Microsoft also sells a one-time purchase version called Microsoft Office Home & Student, which costs more upfront but does not renew. You buy it once and own it permanently, though you do not get cloud storage or the ability to install on multiple devices. This option makes sense if you plan to use the software for many years and do not want to pay a subscription, but it does not include the online apps or the flexibility of 365.

Other companies offer similar subscription services. Google Workspace includes Gmail, Google Docs, Sheets, and Slides, and costs less than Microsoft 365 but has different features and file formats. LibreOffice is free and open-source software that works with Microsoft file formats but does not have cloud storage or the same polish as Microsoft's apps. The choice depends on what you need, how many people will use it, and whether you want cloud storage included.

Troubleshooting Common Subscription Issues

If you install Microsoft 365 but the apps say your subscription is not valid, sign out and sign back in. Open any Office app, click "File," then "Account," and look for a "Sign out" button. Sign out completely, close the app, and open it again. Sign in with the Microsoft account that has the active subscription. This usually fixes the problem because the app needs to refresh its connection to your account.

If your payment fails and your subscription lapses, you will see a message when you open the apps. Go to account.microsoft.com, check your payment method, and update it if the card has expired or been declined. Then renew your subscription. You may have a grace period of a few days to renew without losing access, but this varies.

If you installed 365 on a device and want to use it on a different device, uninstall it from the old device first (if you are not using it anymore). You can install on up to five devices at once, but if you try to install on a sixth device, Microsoft will ask you to uninstall from one of the others. Go to account.microsoft.com, click "Manage installation," and you can see which devices have the apps installed and uninstall from any of them remotely.

Frequently Asked Questions

Can I use Microsoft 365 offline?

Yes. Once you read and install the apps, you can work offline without an internet connection. Your changes save to your device. When you reconnect to the internet, any files stored in OneDrive will sync automatically. However, you need an internet connection at least once every 30 days to keep your subscription active — Microsoft checks this periodically.

What is the difference between Microsoft 365 and Microsoft Office?

Microsoft Office usually refers to the one-time purchase version you buy once and own forever. Microsoft 365 is the subscription version that renews monthly or yearly. 365 includes cloud storage, online apps, and regular updates; the one-time purchase does not. Both use the same desktop apps (Word, Excel, PowerPoint), but 365 gives you more features and flexibility.

Can I share my Microsoft 365 subscription with someone else?

If you have a Personal plan, no — it is licensed for one person only. If you have a Family plan, yes — you can invite up to five other people to use the same subscription. Each person gets their own account, storage, and can install the apps on their own devices. They cannot see each other's files unless you specifically share them.

Do I lose my files if I cancel my subscription?

No. Your files stay in OneDrive and on your devices. You just cannot edit them in Microsoft apps until you renew. You can read them, view them in the free online versions at Office.com, or convert them to other formats like PDF. If you do not renew for 90 days, Microsoft may delete files in OneDrive, so read them if you plan to let your subscription lapse.

Can I use Microsoft 365 on a Mac?

Yes. Microsoft 365 works on both Windows and Mac computers. When you go to install, choose the Mac version and the installer will read the apps for macOS. The apps work the same way as on Windows. You can also use the online versions at Office.com on any computer, regardless of the operating system.