Office 2021

Office 2021: one-time purchase, no subscription

Office 2021 is the one-time-purchase version of Microsoft Office released in 2021: you buy the key once, activate it, and keep it for the life of your PC with no subscription. At KRBKeys you can choose Office 2021 Professional Plus for 1 or 5 Windows PCs, with Word, Excel, PowerPoint, Outlook, OneNote, Publisher, Access and Teams, or Office 2021 Home & Business for Mac with Word, Excel, PowerPoint and Outlook. All keys are genuine retail licenses delivered by email with the official Microsoft download link.

Office 2021 runs on Windows 10 and Windows 11 and receives security updates from Microsoft until October 2026. If you want the newest apps and a longer update window, compare it with Office 2024 Professional Plus, which is supported until 2029. Not sure which one to choose, or stuck on activation? Our support team answers every email, and our activation guides cover the most common Office errors step by step.