Is Office 2021 Still Worth Buying in 2026?
If you are considering Microsoft Office 2021 in 2026, the approaching support deadline needs to be part of your decision. Office 2021 remains a capable desktop suite, but Microsoft support ends on 13 October 2026.
That does not mean the applications will suddenly stop opening. However, after the deadline, Microsoft will no longer provide security updates, bug fixes or technical support. For most people purchasing Office for long-term use, a newer version is therefore the safer choice.
Important: Microsoft has confirmed that Office 2021 support ends on 13 October 2026, with no extension and no extended security updates. The applications may continue to work, but using unsupported software can introduce security risks. Read the official Microsoft support notice.
Is Office 2021 Still Worth Buying in 2026?
The short answer is that it depends on how long you intend to use it and what you need from Office.
Office 2021 may still suit someone who needs its familiar Windows desktop applications for a limited period, understands the support deadline and does not require the latest features.
For a new purchase intended to last several years, Office 2024 is normally the more sensible option. It provides a newer feature set and remains supported until October 2029.
What Is Included in Office 2021 Professional Plus?
Office 2021 Professional Plus is a Windows desktop suite normally associated with applications including Word, Excel, PowerPoint, Outlook, Access, Publisher and OneNote. The exact applications and installation rights depend on the particular licence supplied.
Microsoft Teams is a separate application and service. It should not be treated as one of the locally installed Office 2021 Professional Plus desktop applications.
Our guide to what is included in Office 2021 Professional Plus explains what each application is designed to do.
Useful Features Introduced with Office 2021
Office 2021 introduced several worthwhile improvements over older perpetual editions such as Office 2016 and Office 2019.
New Excel Functions
Excel 2021 introduced functions that can make spreadsheet work quicker and formulas easier to maintain:
- XLOOKUP searches a range and returns a corresponding result from another range.
- Dynamic arrays allow one formula to return results across several cells.
- FILTER, SORT and UNIQUE provide simpler ways to work with lists of data.
- LET allows calculation results to be assigned names within a formula.
Interface and Accessibility Improvements
Office 2021 introduced a refreshed appearance designed to fit more naturally with modern versions of Windows. It also includes improved accessibility checking, Microsoft Search and additional colour and drawing controls.
Word and PowerPoint Improvements
Word 2021 includes features such as modern comments, improved proofing tools and a darker document canvas. PowerPoint 2021 provides additions including Ink Replay, improved recording options and expanded presentation controls.
Some sharing and simultaneous editing features require documents to be stored using a compatible Microsoft cloud account or business service. These services are not automatically included with an Office 2021 licence.
Reasons Someone Might Still Choose Office 2021
Despite its age, Office 2021 can still meet certain requirements:
- No continuing subscription: It is a perpetual desktop release rather than a Microsoft 365 subscription.
- Familiar applications: Its interface and file formats will be familiar to users of recent Office versions.
- Useful Excel improvements: Functions such as XLOOKUP and dynamic arrays provide a significant improvement over older editions.
- Local desktop applications: The main applications are installed on the Windows computer.
- Older document compatibility: It can open and edit common Word, Excel and PowerPoint file formats.
These benefits must now be considered alongside the short period of Microsoft support remaining.
Reasons to Choose a Newer Office Version
Office 2021 Support Ends Soon
The most important limitation is the 13 October 2026 support deadline. After that date, newly discovered security problems will not be corrected through Office 2021 security updates.
The Feature Set Is Fixed
Office 2021 receives security and reliability updates while supported, but it does not receive the continuous new features supplied to Microsoft 365 subscribers. It will not be upgraded into Office 2024 automatically.
Cloud Services Are Separate
A purchase of Office 2021 does not automatically provide Microsoft 365 cloud storage, a Microsoft Teams business plan or other subscription services. The functionality available through Outlook, OneDrive, SharePoint and Teams depends on the separate account or service being used.
Publisher Is Being Retired
Microsoft Publisher reaches the end of its supported life in October 2026. Anyone who relies heavily on Publisher should plan how existing publications will be accessed and edited in the future. Microsoft explains the change on its Publisher retirement page.
Office 2021 vs Office 2024 in 2026
| Consideration | Office 2021 | Office 2024 |
|---|---|---|
| Release generation | 2021 | 2024 |
| Microsoft support | Ends 13 October 2026 | Supported until October 2029 |
| Feature set | Older fixed feature set | Newer fixed feature set |
| Subscription required | No | No |
| Best suited to | Shorter-term or specific compatibility requirements | New purchases intended for longer-term use |
For a more detailed breakdown, read our Office 2024 vs Office 2021 comparison.
Who Might Office 2021 Still Suit?
Office 2021 could remain a reasonable choice when:
- You specifically need compatibility with an existing Office 2021 installation or working environment.
- You only intend to use the software for a limited period.
- You understand and accept that Microsoft support ends in October 2026.
- You do not require continuing feature upgrades or Microsoft 365 subscription services.
It is less suitable when the software will be used for sensitive business information, online account management or several years beyond the support deadline.
Frequently Asked Questions
Will Office 2021 stop working in October 2026?
Microsoft says the Office 2021 applications may continue to function after support ends. However, the software will no longer receive security updates, bug fixes or Microsoft technical support.
Is Office 2021 a subscription?
No. Office 2021 is a perpetual desktop release rather than a monthly Microsoft 365 subscription. Installation, activation and device rights still depend on the exact licence purchased.
Does Office 2021 include Microsoft Teams?
Microsoft Teams is a separate application and service. Its chat, meeting, storage and business features depend on the Microsoft account or Teams plan being used.
Does Office 2021 include cloud storage?
Cloud storage is not included simply because Office 2021 is installed. OneDrive storage and other online services depend on the separate Microsoft account or subscription attached to them.
Can Office 2021 be upgraded to Office 2024?
Office 2021 does not automatically become Office 2024 through an update. Office 2024 is a separate release with its own licence.
Our Verdict
Office 2021 remains capable, but its remaining supported life is now very short. As of August 2026, buyers have only a limited period before Microsoft support ends on 13 October 2026.
For most new purchases, Office 2024 offers the stronger long-term choice because it remains supported until October 2029. Office 2021 should only be selected when its lower cost or compatibility with an existing setup outweighs the approaching support deadline.
If you have considered the support position and Office 2021 still meets your requirements, you can review the exact applications, compatibility and licence details on our Office 2021 Professional Plus product page.
