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Buy Office 2021
Office 2021 Professional Plus and Home and Business for Mac, as a perpetual licence with no subscription. Good to know: Microsoft has not released updates for Office 2021 since 13 October 2026. It remains an affordable option for a workstation with simple needs; for everyday use, we recommend Office 2024, supported until 2029. Key by email within 24 hours with an invoice.
No. Microsoft support ended on 13 October 2026: Office 2021 still installs, activates and works normally, but no longer receives security updates. Your documents remain compatible with recent versions of Office.
Office 2021 or Office 2024?
Office 2024 is supported until October 2029 and costs only a little more: it is the safer choice for a computer that is online every day. Office 2021 suits a secondary workstation or a PC used mostly offline. Compare prices in Office 2024.
Which apps does Office 2021 Professional Plus include?
Word, Excel, PowerPoint, Outlook, OneNote, Access and Publisher, for a PC running Windows 10 or Windows 11. The Home and Business for Mac edition includes Word, Excel, PowerPoint and Outlook.
Retail, LTSC, Bind Key or phone activation: which should I take?
A Retail key is activated online and can be moved to another PC. A Bind Key is linked to your Microsoft account, which makes reinstalling easy. LTSC and phone-activation keys are the cheapest; activation is done online or through Microsoft's phone service (guide).
When will I receive my key, and what if it doesn't work?
By email, within 24 hours of payment, together with your invoice (please also check your spam folder). If the key does not activate, let us know within 7 days at support@chkey.ch: after checking, we replace it or refund you. Details: Shipping & Returns.
Office 2021 is the perpetual alternative to a Microsoft 365 subscription, with Word, Excel, PowerPoint and, in the Professional Plus edition, Outlook, Publisher and Access. Chkey.ch offers it as a one-off licence for PC and for Mac, at Swiss prices.
Several licence types coexist here and the difference is worth knowing. A standard retail key activates one PC, a Bind key is tied to your Microsoft account and can be moved to a new machine, the LTSC branch is the long-term servicing build without cloud features, and a five-PC licence covers a small office.
Why buy your Office 2021 key from chkey.ch?
Key validated before sending: no failed activations.
Prices in CHF: TWINT or credit card, Swiss invoice.
Support in Lausanne: four languages, by email.
Perpetual licence: bought once, yours for as long as the machine lasts.
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