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Microsoft Office Keys
Buy a Microsoft Office key once and use Office without a subscription. Office 2024 is the current version, supported until 9 October 2029. Office 2021 costs less. On a Mac, choose a Home & Business edition. Every key is delivered instantly by email with install steps, and the comparison below the products helps you choose.
Which Microsoft Office do I need?
| Office 2024 Professional Plus (LTSC) | Office 2024 Home & Business | Office 2024 Home | Office 2021 Professional Plus | |
|---|---|---|---|---|
| Apps | Word, Excel, PowerPoint, Outlook, OneNote, Access | Word, Excel, PowerPoint, Outlook, OneNote | Word, Excel, PowerPoint, OneNote | Word, Excel, PowerPoint, Outlook, OneNote, Access, Publisher |
| Works on | Windows 10 and 11 | Windows or Mac | Windows 10 and 11 | Windows 10 and 11 |
| License | Activates online on one PC and stays on that PC | Linked to your Microsoft account, can move to a new device | Linked to your Microsoft account, can move to a new device | Retail key, activated online with Microsoft |
| Payment | One-time | One-time | One-time | One-time |
| Microsoft support until | 9 October 2029 | 9 October 2029 | 9 October 2029 | 13 October 2026 |
| Best for | Businesses and power users on one Windows PC | Mac users, and anyone who changes computers | Home and school use | The lowest price, if you can do without updates after October 2026 |
One-time purchase or Microsoft 365?
The keys on this page are one-time purchases: you pay once and keep using the version you bought. Microsoft 365 is a yearly subscription with the newest apps, cloud storage and Copilot. If several people need Office on several devices and you don't mind paying every year, Microsoft 365 fits better. If you want to pay once for a PC or Mac, choose one of the editions above.
Office versions and their support dates
- Office 2024: supported until 9 October 2029.
- Office 2021: support end date 13 October 2026.
- Office 2019 and Office 2016: support ended on 14 October 2025. They still install and run, but get no security updates.
End of support doesn't switch Office off. It means Microsoft no longer fixes security problems or bugs in that version. Our Office 2019 vs 2021 comparison explains how the versions differ.
How delivery and activation work
- After payment, your 25-character product key is emailed to you instantly, together with the download link and our activation guide. It's also saved under My Account → Keys.
- Install Office. Home and Home & Business editions are redeemed and installed from your Microsoft account. Office 2024 Professional Plus (LTSC) installs with Microsoft's Office Deployment Tool, and the steps are on its product page.
- Activate with your key. Online-activation keys activate in a few clicks. Phone-activation keys use a confirmation code, which our Phone Activation Helper gets for you.
If a key doesn't work
Contact us within 15 days of your order, on live chat or at support@cheapkeys.io. We'll help you activate it or replace the key, and if no working solution is possible, you get a refund under our refund policy.
Microsoft Office keys: FAQ
Is this a subscription?
No. Every Office key on this page is a one-time purchase. Only Microsoft 365 is a subscription.
Can I use Office on a Mac?
Yes, with Office 2024 Home & Business or Office 2021 Home & Business for Mac. Professional Plus editions and Office 2024 Home are for Windows.
How many computers can I install it on?
One computer per key, unless the product says 5 PCs. Home and Home & Business editions are linked to your Microsoft account, so you can move them to a new computer later. Office 2024 Professional Plus stays on the PC where you activate it.
Will Office 2021 stop working after 13 October 2026?
No. It keeps working, but it no longer gets security updates. If that matters to you, choose Office 2024.
How fast will I get my key?
Instantly, by email and under My Account → Keys. In rare cases a system delay can add 5–10 minutes. If nothing arrives, check your spam folder or contact us on live chat.
Why are these keys cheaper than Microsoft's price?
We buy unused keys from companies that purchase Microsoft licenses in large batches. We get their surplus for a fraction of the retail price and pass the saving on to you.
Browse by version
Office 2024 keys · Office 2021 keys · Office 2019 keys · Office 2019 vs 2021 compared · Install and activation guides