Office License Types: Perpetual vs Subscription (Microsoft 365)
Office 2021/2024 one-time licenses vs Microsoft 365 subscriptions — pricing, updates, device limits and which fits you.
Last updated · January 2026
On this page+
Microsoft sells Office in two fundamentally different ways: a one-time (perpetual) license and a subscription. Both are genuine — the right choice depends on your needs.
01Perpetual licenses — Office 2021 & 2024
- Pay once, own forever
- Word, Excel, PowerPoint (and more, depending on edition)
- Installed on one PC or Mac (some editions allow five)
- No new features after release; security updates continue for years
02Subscription — Microsoft 365
- Yearly or monthly fee
- Always the latest apps and features
- Install on all your devices (PC, Mac, tablet, phone)
- Includes 1 TB OneDrive cloud storage
03Which should you choose?
Choose Office 2024/2021 if you want a fixed version with no recurring cost — ideal for one computer. Choose Microsoft 365 if you use multiple devices, want cloud storage, or like getting new features.
Both activate with a genuine key or subscription; see our Office activation guide.
Keep reading
Still stuck?
Our team helps with activation and licensing 24/7.
Get a genuine Office 2021 key
Office 2021 from PCKEY.NET — €41.99, with digital delivery and activation information.