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

- 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.
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.
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.
Open a web browser on your Mac, navigate to the Microsoft account dashboard, sign in, and download the macOS version of Office.
Launch your Windows partition using Parallels Desktop or restart your Mac into Boot Camp.
Open a browser in Windows, sign in to the same Microsoft account, and download the Windows version of the Office suite.
Launch Word or Excel in Windows and sign in with your Microsoft 365 credentials to activate the suite.

Transferring a One-Time Purchase License
One-time purchase licenses can be transferred between macOS and Windows, but cannot be active on both simultaneously.
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. Download WPS Office: Visit the official WPS website and download the installer for your active operating system (Windows or macOS).
- 2. Install the application: Run the downloaded installer file and follow the straightforward on-screen instructions to complete the setup.
- 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.

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.




