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Microsoft Office 2021 is still a usable one-time-purchase desktop suite, but it reaches end of support on October 13, 2026. That makes it a poor default purchase for most new buyers in 2026. If you want a perpetual license, compare Office 2024 first; if you need current features, cloud storage, collaboration, or multiple devices, Microsoft 365 is usually the better fit.
This guide explains exactly what Office 2021 includes, which edition works on Windows or Mac, what the verified pricing signals show, and what happens after Microsoft stops supporting it.
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What is Microsoft Office 2021?
Office 2021 is a perpetual, one-time-purchase version of Microsoft’s desktop productivity software. Unlike Microsoft 365, it does not require an ongoing subscription for the purchased release and does not continuously receive major feature updates.
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#1 Best Overall
- Full Sized Keyboard: The US QWERTY keyboard features a tilt angle for the great typing position, which provides you with a comfortable and accurate typing experience, prevents wrist fatigue. Quiet clicks allow you to focus on your work or play without disturbing others
- Stable 2.4G Wireless Connection: Plug and play without any drivers. Advanced 2.4GHz wireless technology provides a powerful and reliable connection up to 33 ft with virtually no delays or dropouts, even in the busiest wireless environments. Note: The USB dongle is stored in the compartment next to the keyboard battery slot, and can be found by opening the keyboard battery cover
- Auto Sleep & Power Saving: The keyboard features automatic sleep function, when you stop using it for more than 15 minutes, it will go into sleep mode to save power and you can click any button to activate it, the battery life up to 6 months. The external keyboard is powered by 1 AAA battery (Batteries Not Included)
- Wide Compatibility: Easy to use, simply plug the USB receiver into the USB port and start working. This wireless keyboard compatible with Windows 11, 10, 8, 7, Vista, XP, Chrome OS, Linux and Mac OS. Works well with desktop, computer, PC, laptop, Chromebook, notebook and more. Perfect for office & home work, business travel. Enjoy your wireless freedom and keep your desk clean and tidy
- Multimedia Shortcuts: The full-sized cordless keyboard with numeric keypad features 12 multimedia hotkeys for instant access to your media player, E-mail, Internet, volume, play/pause, mute, computer and favorites, so you can easily check out your favorite sites. Ideal for office work and entertainment, it saves you time and makes work and life easier. Note: the 12 shortcuts are not fully compatible with the Mac system
Office 2021 was released on October 5, 2021. Microsoft’s consumer Office 2021 support lifecycle ends on October 13, 2026. After that date, the applications may continue to open and run, but Microsoft will stop providing security updates, bug fixes, software updates, and technical support. See Microsoft’s Office 2021 lifecycle page and its end-of-support guidance.
Office 2021 editions compared
| Edition | Included apps | Best suited to | Platform limitation |
|---|---|---|---|
| Home & Student 2021 | Word, Excel, PowerPoint, OneNote | Students and households using Office at home or school | One PC or Mac; non-commercial positioning |
| Home & Business 2021 | Word, Excel, PowerPoint, OneNote, Outlook | Households and small businesses needing email and calendar tools | One PC or Mac |
| Professional 2021 | Word, Excel, PowerPoint, OneNote, Outlook, Publisher, Access | Users who specifically need desktop publishing or database software | One Windows PC; Access and Publisher are not available for Mac |
These are generally single-person, single-device licenses for the purchased edition. Check the applicable retail license terms for transfer rights and device changes.
Which edition should you choose?
- Choose Home & Student if you need only Word, Excel, PowerPoint, and OneNote.
- Choose Home & Business if Outlook is essential or the software will be used for work.
- Choose Professional only if you genuinely need Access or Publisher. It is poor value if you only need the core Office applications.
- Mac buyers should not buy Professional expecting Access or Publisher. Those applications are not included in the consumer Mac edition.
Office 2021 should not be confused with Office LTSC 2021. LTSC is a separate commercial, government, education, and organizational deployment product with different licensing and servicing rules. Microsoft describes it as a device-based perpetual deployment option for organizations that need a controlled software version. The consumer editions discussed here are Home & Student, Home & Business, and Professional.
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Word 2021
Word 2021 provides the familiar desktop word-processing experience, including document creation and formatting, templates, Track Changes, comments, accessibility tools, and editing features. Microsoft also lists modern comments, co-authoring in supported configurations, inking, translation-related tools, and a visual refresh among the Office 2021 improvements.
Do not interpret that as the full Microsoft 365 collaboration experience. Co-authoring and related features can depend on the Microsoft account, OneDrive or SharePoint storage, service availability, and internet connectivity. Cloud-backed features may also differ from Microsoft 365.
Excel 2021
Excel 2021’s most important improvement is better compatibility with modern workbooks. It adds XLOOKUP, dynamic arrays, and several newer calculation functions:
FILTERSORTSORTBYUNIQUESEQUENCERANDARRAYLET
These functions can replace complicated legacy formulas. For example, XLOOKUP can search in either direction without the limitations associated with older lookup formulas, while FILTER and UNIQUE can produce automatically expanding results.
Excel 2021 also includes calculation improvements, updated charts, new data types, and usability changes. Its limitation is that it is fixed at the 2021 release level: it does not receive the continuing Excel features delivered to Microsoft 365 subscribers.
PowerPoint 2021
PowerPoint 2021 includes updated presentation templates, visual design changes, inking and drawing tools, improved recording and presentation tools, motion graphics, and updated animation capabilities. Co-authoring is available in supported consumer configurations when the necessary account and cloud services are in place.
It does not contain every newer Microsoft 365 presentation, collaboration, security, or intelligent feature. A buyer who depends on current presentation tools should confirm that the exact feature is available in the perpetual edition rather than assuming feature parity.
Rank #2
- All-day Comfort: This USB keyboard creates a comfortable and familiar typing experience thanks to the deep-profile keys and standard full-size layout with all F-keys, number pad and arrow keys
- Built to Last: The spill-proof (2) design and durable print characters keep you on track for years to come despite any on-the-job mishaps; it’s a reliable partner for your desk at home, or at work
- Long-lasting Battery Life: A 24-month battery life (4) means you can go for 2 years without the hassle of changing batteries of your wireless full-size keyboard
- Simply plug the USB receiver into a USB port on your desktop, laptop or netbook computer and start using the keyboard right away without any software installation
- Simply Wireless: Forget about drop-outs and delays thanks to a strong, reliable wireless connection with up to 33 ft range (5); K270 is compatible with Windows 7, 8, 10 or later
Outlook 2021
Outlook is included in Home & Business 2021 and Professional 2021. It is not included in Home & Student 2021.
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OneNote, Access, and Publisher
- OneNote: Included in all three principal consumer editions.
- Access: Included only in Professional 2021 and available for Windows.
- Publisher: Included only in Professional 2021 and available for Windows.
- Mac: The consumer Mac lineup does not include Access or Publisher.
Office 2021 pricing
Pricing depends on country, retailer, promotion, edition, and whether the product is a legitimate retail license. The figures below are U.S. price signals observed in August 2026, not permanent worldwide prices.
Verified official price signal
Microsoft’s indexed U.S. product page showed Office Professional 2021 at $439.99 for a one-time purchase covering one Windows PC and one person. The listing includes Word, Excel, PowerPoint, Outlook, Publisher, and Access, and identified 60 days of Microsoft support at no additional cost. Check the official Microsoft product page before buying because availability and displayed pricing can change.
That price is especially difficult to justify for a new buyer when support ends on October 13, 2026. A perpetual license means you do not pay a recurring subscription for the purchased release; it does not mean the release receives security support forever, and it does not provide a free upgrade to the next major version.
What about Home & Student and Home & Business?
The official Microsoft information reviewed confirms the editions and their included applications, but it does not provide a reliable current U.S. price for Home & Student 2021 and Home & Business 2021. Do not treat old comparison-site prices as current pricing. A historical launch MSRP, a temporary retailer promotion, and a marketplace key are three different things.
Before purchasing, use Microsoft’s official product or account pages and verify:
- the country and currency;
- the exact edition;
- whether the license is for Windows, Mac, or both as applicable;
- the number of permitted devices;
- whether the purchase redeems through a Microsoft account; and
- the seller’s authorization and license provenance.
Be cautious with “lifetime” Office keys
“Lifetime license” is usually retailer language. The accurate description for Office 2021 is a perpetual license for the purchased release. It is not a promise of lifetime security updates, lifetime technical support, or compatibility with every future version of Windows or macOS.
Be particularly cautious with listings that offer “Professional Plus 2021 lifetime,” unlimited devices, activation-only services, or keys priced far below Microsoft’s normal pricing. Such offers may involve volume licensing, education licensing, an improperly transferred license, or a key that cannot be legitimately redeemed as a consumer retail product. A seller providing only a product key, without a credible Microsoft account redemption path and clear license terms, deserves extra scrutiny.
Office 2021 system requirements
Windows
Microsoft’s current requirements information lists the following baseline requirements for Office suites for individuals and families:
Rank #3
- Reliable Plug and Play: The USB receiver provides a reliable wireless connection up to 33 ft (1), so you can forget about drop-outs and delays and you can take it wherever you use your computer
- Type in Comfort: The design of this keyboard creates a comfortable typing experience thanks to the low-profile, quiet keys and standard layout with full-size F-keys, number pad, and arrow keys
- Durable and Resilient: This full-size wireless keyboard features a spill-resistant design (2), durable keys and sturdy tilt legs with adjustable height
- Long Battery Life: MK270 combo features a 36-month keyboard and 12-month mouse battery life (3), along with on/off switches allowing you to go months without the hassle of changing batteries
- Easy to Use: This wireless keyboard and mouse combo features 8 multimedia hotkeys for instant access to the Internet, email, play/pause, and volume so you can easily check out your favorite sites
- Windows 11 in the current supported requirements matrix;
- a 1.1 GHz or faster, two-core processor;
- 4 GB of RAM;
- 4 GB of available disk space;
- a minimum display resolution of 1280 × 768;
- DirectX 9 or later for graphics hardware acceleration; and
- a current version of Edge, Chrome, or Firefox for browser-dependent functions.
Microsoft product pages may also describe an individual Office 2021 product as compatible with Windows 10 and Windows 11. That is different from saying Windows 10 is a good long-term security platform: Windows 10 support has itself ended. Check Microsoft’s current system requirements for the exact configuration before installing.
Mac
Mac requirements include:
- an Intel or Apple Silicon processor;
- 4 GB of RAM;
- 10 GB of available disk space;
- a minimum display resolution of 1280 × 800; and
- one of the three most recent macOS versions.
Microsoft’s supported macOS window changes as Apple releases new versions. Therefore, a Mac that meets the requirement today may fall outside the supported three-version window later.
Internet and offline use
Office 2021 is not a continuously streamed web application. After installation and activation, you can generally use Word, Excel, and PowerPoint offline. Internet access is nevertheless required for initial installation, product redemption, account association, activation, and periodic activation checks. OneDrive, SharePoint, co-authoring, Exchange-connected Outlook features, and other cloud functions may require internet access and an appropriate service account.
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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesOffice 2021 versus Microsoft 365
| Consideration | Office 2021 | Microsoft 365 |
|---|---|---|
| Payment model | One-time purchase | Recurring subscription |
| Feature updates | No ongoing major feature updates | Continuing feature and security updates |
| Cloud storage | Not bundled as a general subscription benefit | OneDrive storage included with qualifying plans |
| Devices | Typically one PC or Mac | Multiple devices, depending on plan |
| Upgrade path | Buy a later major release separately | Latest available version while subscribed |
| Best fit | A fixed suite for one device and mostly offline work | Users needing current apps, storage, collaboration, or several devices |
Choose Office 2021 only when you strongly prefer a fixed, non-subscription release, work mostly offline, do not need the newest features, and accept the imminent end of support. It may also remain practical for an existing owner who needs continuity temporarily.
Microsoft 365 is generally better for people working across a PC, Mac, tablet, and phone; households with multiple users; teams collaborating on shared documents; users who need OneDrive; and anyone who wants security and feature updates beyond October 2026. See Microsoft’s Microsoft 365 plan comparison for current plans and pricing.
Office 2021 versus Office 2024
For a buyer who wants a perpetual license in 2026, Office 2024 is the more relevant comparison. Microsoft’s current consumer support information lists Office 2024 alongside Office 2021, and an indexed U.S. Microsoft Store listing showed Office Home 2024 at $149.99. Confirm the current price, included apps, platform support, and license terms on the official Office Home 2024 page.
The key comparison is not simply “subscription versus one-time purchase.” It is also remaining support runway. Office 2021 is less than two months from retirement as of August 18, 2026, while Office 2024 is the newer perpetual generation. If a legitimate Office 2021 license is only slightly cheaper than Office 2024, buying the older release can create avoidable migration and security work.
Office 2024 may not include every application found in Professional 2021, so buyers who need Access or Publisher must verify the exact edition. But for someone who wants a current one-time purchase containing the core productivity applications, Office 2024 is the logical starting point.
What happens when Office 2021 support ends?
On October 13, 2026, Microsoft will end support for Office 2021. The installed software may continue to function, but it will no longer receive Microsoft security fixes, bug fixes, software updates, or technical support.
This distinction matters for personal finances and small businesses. A product continuing to open is not the same as a product remaining safe to use for sensitive documents, tax records, customer information, or email. Unsupported software can also become less suitable as operating systems, cloud services, file formats, and security requirements change.
Rank #4
- Media-Friendly: The K400 Plus wireless touch TV keyboard gives you integrated, comfortable control of your PC-to-TV entertainment, eliminating the clutter of a separate keyboard and mouse
- Plug-and-Play: Simply plug the Unifying receiver into a USB port and the wireless touchpad keyboard is ready to go; adjust controls using the Logitech Options Software to save preferred settings
- Power-Packed: Built with laid-back control in mind, this wireless TV keyboard has a reliable and long battery life of up to 18 months (2), including an on/off button to help it go even longer
- Wireless Freedom: Designed for seamless comfort and control, this HTPC keyboard boasts a range of up to 33 ft (1) wireless connectivity, with quiet keys and a large touchpad for easy navigation
- Broad Compatibility: Designed for use with Windows 7, Windows 8, Windows 10 and later, Android 7 or later, and Chrome OS
Existing owners should inventory their Office-dependent files, check whether Outlook, Access, Publisher, macros, or add-ins are essential, and plan a move to Office 2024, Microsoft 365, or a suitable alternative before the deadline.
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Is Office 2021 worth buying in 2026?
Existing Office 2021 owner
Continuing to use a valid installation temporarily can be reasonable if it meets your needs. Begin planning an upgrade before October 13, 2026 rather than treating continued functionality as continued support.
Student or home user needing Word, Excel, and PowerPoint
Do not automatically buy Home & Student 2021. Compare Office Home 2024 and Microsoft 365 first. Office 2021 makes sense only if the price is substantially lower, the seller is legitimate, and you accept the short support horizon.
Small-business user needing Outlook
Home & Business 2021 includes Outlook, but a new purchase so close to end of support is difficult to justify unless there is a specific compatibility or fixed-version requirement. Compare Microsoft 365 and current perpetual alternatives.
Mac buyer
Home & Student or Home & Business may work for a Mac user, but Professional is not a shortcut to Access or Publisher. Confirm the supported macOS versions and remember that Office 2021 support ends on the same date across the consumer product lifecycle.
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User who needs Access or Publisher
Professional 2021 is the relevant consumer edition, but it is a Windows-only choice and had an observed official price of $439.99 in August 2026. Buy it only if those applications are genuinely necessary and you understand that support ends on October 13, 2026.
Multi-device household or frequent collaborator
Microsoft 365 is normally the better fit because qualifying plans support multiple devices, ongoing updates, OneDrive storage, and broader collaboration features.
Offline-first user
A perpetual desktop suite can be attractive if most work is local and you dislike subscriptions. Even so, Office 2024 is generally a better one-time-purchase starting point than Office 2021 in 2026.
How to buy and activate Office 2021 safely
- Buy from Microsoft or a seller that can explain the license type and its provenance.
- Redeem the purchase with the Microsoft account that will own the license.
- Open the account’s Services & subscriptions area.
- Download and install the exact edition you purchased.
- Open an Office application and sign in or enter the product key when prompted.
- In Windows Office, check File > Account to confirm the product and activation status.
Common problems include a key that has already been used, a key for the wrong edition, a Mac/Windows mismatch, leftover Office installations causing activation conflicts, no internet connection during setup, an unsupported operating system, and confusion between an Office 2021 license and a Microsoft 365 subscription.
If co-authoring or cloud storage does not work, that does not necessarily mean the desktop installation is defective. Those functions may require OneDrive, SharePoint, Exchange, a Microsoft account, an eligible service, and the right connection or storage location.
Best Value
- ✅ INSTANT CONNECTIVITY. Plug in the USB receiver and you can use the KLIM Chroma wireless keyboard instantly, from up to 30 feet away. There is no need to install any drivers!
- ✅ LONG-LASTING BATTERY. There's no need to buy batteries anymore! The gaming keyboard comes with premium-quality built in rechargeable batteries. You will spend lesser money while helping the environment.
- ✅ RGB BACKLIGHTING. Bring your desk to life! Choose static or breathing mode, or turn off the lights completely if you prefer. Note: colors are not customizable.
- ✅ IMPROVE YOUR TYPING SPEED. The membrane keys have a short travel distance, allowing for quick and easy typing.
- ✅ SPILL-RESISTANT & DURABLE. Engineered to handle everyday accidents. One of the only spill-resistant keyboards available at this price point.
Office 2021 alternatives
- Office 2024: The main perpetual-license alternative for a new buyer who wants current-generation desktop Office without a subscription.
- Microsoft 365: Best for current features, multiple devices, cloud storage, collaboration, and ongoing updates.
- LibreOffice: A free, open-source desktop suite for basic documents, spreadsheets, and presentations. File-format fidelity, macros, advanced Excel functions, Outlook replacement, and Access or Publisher compatibility may differ.
- Google Workspace: A cloud-first option for browser-based collaboration and centralized online work. It is less suitable for offline-first workflows, full desktop Office compatibility, or VBA-heavy Excel files. See its official pricing page for current plans.
For most readers, the practical 2026 decision is straightforward: choose Office 2024 if you want a one-time purchase, or Microsoft 365 if you want a continuously updated multi-device service. Office 2021 is mainly a temporary continuation option for existing owners or a narrowly justified bargain from a verifiable seller.
Frequently Asked Questions
Is Microsoft Office 2021 still supported?
Yes, but only until October 13, 2026. After that date Microsoft will stop providing security updates, bug fixes, software updates, and technical support, even though installed applications may continue to run.
Does Office 2021 require a subscription?
No. Office 2021 is a one-time purchase for the purchased release. It still requires internet access for installation, redemption, activation, account association, and periodic activation checks.
Does Office 2021 include Outlook?
Outlook is included in Home & Business 2021 and Professional 2021, but not Home & Student 2021.
Does Office 2021 work on Mac?
Home & Student 2021 and Home & Business 2021 are available for Mac, subject to supported macOS requirements. Professional 2021 is a Windows-only consumer edition, and Mac users do not receive Access or Publisher.
Does Office 2021 include Access?
Only Professional 2021 includes Access, and it is available for Windows. Home & Student and Home & Business do not include it.
Can Office 2021 be used offline?
Yes, ordinary local use is generally possible offline after installation and activation. Setup, activation checks, and cloud-connected features require internet access.
Can Office 2021 be installed on multiple computers?
The consumer editions are generally licensed for one person using one PC or Mac, depending on the edition. Check the specific retail license terms before transferring or reinstalling it.
Will Office 2021 still work after October 2026?
It may continue to function, but it will be unsupported and will no longer receive Microsoft security fixes, bug fixes, software updates, or technical support.
Should I buy Office 2021 or Office 2024?
For a new one-time purchase in 2026, Office 2024 is generally the better choice because Office 2021 is nearing its October 13, 2026 support deadline. Compare the exact apps and current prices before buying.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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