License & Subscription Issues

Can I Use Microsoft Office on macOS and Windows with One License?

Bushra ParveenBushra Parveen Nov 4, 2026 869 views

Question details

The user wants to know if a single software license allows for the installation and use of Microsoft Office on both macOS and a Windows virtual machine (like Parallels) on the same computer.

Can I Use Microsoft Office on Both macOS and Windows with One License?
Product
Microsoft Office / Microsoft 365
Device & OS
macOS and Windows
Scenario
Using Office applications across dual operating systems on a single physical machine.
Observed behavior
The user needs to activate the software on a secondary operating system without purchasing an additional product key.
Before you start

Check your Microsoft account dashboard to determine whether you own a one-time purchase license (like Office 2019/2021) or an active Microsoft 365 subscription, as cross-platform installation rules differ significantly.

Solution 1Recommended

Use Microsoft 365 for Simultaneous Cross-Platform Access

A Microsoft 365 subscription covers both macOS and Windows, allowing simultaneous installations on multiple devices.

If you have a Microsoft 365 subscription, your license is associated directly with your Microsoft account rather than a specific operating system. This allows you to install and activate Office on both your native macOS and your Windows partition (via Parallels or Boot Camp) without needing a separate product key.

1
Sign in on macOS

Open a web browser on your Mac, navigate to the Microsoft account dashboard, sign in, and download the macOS version of Office.

2
Switch to your Windows environment

Launch your Windows partition using Parallels Desktop or restart your Mac into Boot Camp.

3
Download Office for Windows

Open a browser in Windows, sign in to the same Microsoft account, and download the Windows version of the Office suite.

4
Activate the applications

Launch Word or Excel in Windows and sign in with your Microsoft 365 credentials to activate the suite.

Use Microsoft 365 for Simultaneous Cross-Platform Access
Device Limit Allowances: Microsoft 365 permits installation on up to five devices at the same time, which includes PCs, Macs, tablets, and smartphones.
Free Microsoft Office alternative

Try WPS Office: One Account Across All Your Devices

Avoid confusing licensing restrictions and device limits. WPS Office offers a powerful, lightweight, and free alternative to Microsoft Office. With a single account, you can easily access and edit your documents across Windows, macOS, Linux, iOS, and Android seamlessly.

  1. 1. Download WPS Office: Visit the official WPS website and download the installer for your active operating system (Windows or macOS).
  2. 2. Install the application: Run the downloaded installer file and follow the straightforward on-screen instructions to complete the setup.
  3. 3. Sign in to sync: Create or log in to your WPS account to effortlessly sync your files and preferences across your Mac and Windows partition.
Fully compatible with Microsoft Word, Excel, and PowerPoint formats (.docx, .xlsx, .pptx)One account synchronizes your files across macOS, Windows virtual machines, and mobile devicesFree to download and use with lightweight system requirementsIntuitive tabbed interface similar to standard web browsers for better multitasking
microsoft office alternative - wps office

Frequently Asked Questions

Are older Office licenses like Office 2016 cross-platform?

No. Office 2016 and earlier one-time purchase licenses were specific to either Mac or Windows. You cannot transfer a Mac-specific Office 2016 license to a Windows computer.

Do I need a separate product key for Windows if I bought Microsoft 365 on a Mac?

No. A Microsoft 365 subscription is tied directly to your Microsoft account, not to a specific device or operating system. You can log in on your Windows partition and download the software without needing a new product key.

Can I use Office on my iPad with the same Microsoft 365 license?

Yes. A Microsoft 365 subscription supports installation on tablets and smartphones, allowing you to use fully featured Office apps on iOS and Android devices alongside your Mac and PC installations.