Buy an Office 2021 key for your apps and platform
Compare Office 2021 editions and check included apps, Windows or Mac compatibility, licence channel and activation instructions before selecting your key.
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Before you choose a licence
Choose Office 2021 by the applications you need and the platform on which you will install them. Professional Plus, Home & Business and other editions do not describe the same package. A Windows listing must not be treated as a Mac licence, and a familiar application name does not confirm that every edition includes it. Open the product details and compare the included apps, device allowance and exact edition before choosing between listings with similar names.
Office 2021 is a fixed-release purchase, distinct from a Microsoft 365 subscription. Buying it does not include an automatic upgrade to Office 2024 or an unlimited period of vendor support; check the approaching October 2026 support milestone with Microsoft for your edition. Activation can differ by licence channel, so a Professional Plus or LTSC offer should not be assumed to use the same account redemption flow as a retail Home edition. Follow the supplied instructions and resolve any existing installation conflict before activating.
Delivery is digital. After payment, an email link takes you to the protected order page, where the key can be revealed when fulfilment is complete; the key is not sent in plaintext email. Read the selected product's availability and delivery information before paying. Keep the order reference and follow the supplied activation instructions for your chosen variant.
The store's refund policy allows a full refund within 14 days of purchase while a key remains unrevealed. Revealing it ends the change-of-mind withdrawal right described in that policy. Defective keys are handled separately: contact support with the order number and activation error for assistance or a replacement; if a working key cannot be provided, the policy provides a full refund.
Frequently asked questions
Does Office 2021 include Microsoft 365?
Office 2021 is a fixed release. A purchase does not by itself include a Microsoft 365 subscription, its cloud services or upgrades to later Office releases; check the selected edition's app list.
Is Professional Plus the same as Home & Business?
They are different editions. Compare included applications, supported platform and licence channel on the product page, and use the activation instructions supplied for that exact version.
What will I receive after payment?
An email links to your protected order page. Once fulfilment is complete, you can reveal the digital key there and follow the supplied instructions. Keys are not sent in plaintext email.
Does the activation region matter?
Check the region stated for the selected variant before purchase. A language choice on this site does not change a key's activation territory, device allowance or licence conditions.
Can I request a refund?
Unrevealed keys can be refunded within 14 days of purchase under the store's policy. If a revealed key is defective, contact support for activation help or replacement; a full refund applies if no working key can be provided.