Office End of Support Dates: Every Version in One Table

Office end of support dates are set by Microsoft for every version, and several have already passed. Office 2016 and Office 2019 lost support on October 14, 2025. Office 2021 and Office LTSC 2021 have an end-of-support date of October 13, 2026. Office 2024 and Office LTSC 2024 are supported until October 9, 2029. Microsoft 365 is a subscription, so it has no fixed end date. The table below lists every recent version in one place.

When Does Each Version of Office Reach End of Support?

Every one-time-purchase version of Office has a fixed last day of support, and the table below lists them from oldest to newest. Dates come from Microsoft's lifecycle and support pages and show the last day each version was, or will be, supported.

Older versions followed Microsoft's two-phase Fixed Lifecycle Policy: mainstream support brought bug fixes and small improvements, then extended support delivered security updates only. A dash in the mainstream column means the version has a single support window instead, so only one date matters: the day updates stop. If you need a version that is still supported, our Microsoft Office collection lists every edition we sell side by side.

What Happens When Office Reaches End of Life?

When Office reaches end of life, the apps keep opening and your documents stay intact, but Microsoft stops sending security fixes, bug fixes and technical support. Microsoft's own end of support notice for Office 2016 and Office 2019 says the apps may continue to work but performance and reliability can decline over time.

The real risk is cause and effect. Office files are a common route for malware, because a document can carry malicious macros or exploit a flaw in how Word or Excel reads a file. While a version is supported, Microsoft patches those flaws through monthly updates. Once support ends, any new flaw found in that version stays open for good, so every unexpected attachment becomes a bigger gamble.

There are practical side effects too:

• Microsoft no longer offers phone or chat help for that version.
• Online help articles for it are retired over time.
• Businesses may fail security or compliance checks that require patched software.

Is Office 2016 or Office 2019 Still Supported?

No. Office 2016 and Office 2019 both reached end of support on October 14, 2025, on the same day as Windows 10. Many people searching for "office 2016 end of life" or "office 2019 end of life" expect the newer version to last longer, but Office 2019 had a shorter extended support phase, so both versions retired on the same day.

Office 2016 for Mac and Office 2019 for Mac ended even earlier, on October 13, 2020 and October 10, 2023 respectively. If you still use either on a Mac, it has been without security updates for some time.

When Does Office 2021 Support End?

Office 2021 support ends on October 13, 2026; from that date Microsoft no longer releases security fixes, bug fixes and software updates for it. Microsoft's Office 2021 end of support page confirms the date. The same deadline applies to Office LTSC 2021, Visio LTSC 2021 and Project LTSC 2021.

Office 2021 had a support life of about five years, much shorter than the ten years older versions received. Office 2021 keeps working after that date, but you should plan a move to Office 2024 or Microsoft 365 rather than run it for years without updates. Our comparison of Office 2024 Pro Plus features versus Office 2021 shows what changes.

How Long Will Office 2024 Be Supported?

Office 2024 is supported until October 9, 2029, for both Windows and Mac. That makes it the only one-time-purchase version with several years of security updates still ahead.

Office 2024 is a perpetual licence: you pay once and keep the right to use that version. It does not upgrade itself to the next release. When 2029 arrives you will face the same choice again, so the purchase works best for people who want predictable costs for the next few years rather than the newest features every month.

How to Check Which Version of Office You Have

You can see your Office version in under a minute from inside any Office app.

1. Open Word, Excel or Outlook.
2. Select File → Account (in Outlook it may be File → Office Account).
3. Look under Product Information. The product name shows the version, such as Office Professional Plus 2019 or Microsoft 365 Apps for business.
4. Select About Word (or the app you opened) if you need the exact build number.
5. On a Mac, open the app, then choose Word → About Microsoft Word from the menu bar.

Compare the product name with the table above. If the end-of-support date has passed, start planning your upgrade now.

Should You Upgrade to Office 2024 or Microsoft 365?

Choose Office 2024 if you want to pay once and use the same apps until 2029; choose Microsoft 365 if you want continuous updates, cloud storage and the latest features for an ongoing fee. Both keep you on a supported, patched version.

Our guide to Microsoft Office vs Microsoft 365 explains the trade-off in detail. Keep the operating system in mind too: Windows 10 also reached end of support in October 2025, as covered in our Windows 10 end of life guide. Microsoft says it will continue security updates for Microsoft 365 apps on Windows 10 until October 10, 2028, but that does not apply to one-time-purchase Office versions.

A Common Mistake We See

A common mistake is buying an older version of Office because it is cheaper, without checking its support date first. Office 2016 and 2019 keys are still sold widely, and they still install and activate, but a version that no longer receives security updates is a poor choice for a work PC that opens email attachments every day.

Older versions still have a place, for example on an offline PC that runs one legacy macro or add-in that newer releases break. For everyone else, the small price difference is rarely worth losing years of security fixes. Whichever version you choose, our keys are genuine, delivered instantly by email, and covered by a 30-day money-back guarantee and lifetime replacement warranty.

Frequently Asked Questions

Will Office stop working after end of support?

No. Office does not switch off when support ends. The apps keep opening, editing and saving files as before. What stops is the flow of security updates, bug fixes and Microsoft technical support, so the software becomes steadily riskier to use on a connected PC, especially for email and downloaded documents.

Is Office 2019 end of life the same date as Office 2016?

Yes. Office 2016 and Office 2019 for Windows both reached end of support on October 14, 2025. Office 2019 had a shorter extended support phase than Office 2016, so both ended together. The Mac editions ended earlier, on October 13, 2020 for Office 2016 and October 10, 2023 for Office 2019.

Can I still install Office 2016 after end of life?

Yes, you can still install and activate Office 2016 with a valid product key, and existing installations keep working. However, it receives no further security patches after October 14, 2025. It is best kept for offline machines or specific compatibility needs rather than everyday use on a PC connected to the internet.

Does Microsoft 365 have an end of support date?

Microsoft 365 has no single end-of-life date because it is a subscription that keeps updating. It follows the Modern Lifecycle Policy, which requires you to stay on a supported build and operating system. On Windows 10, Microsoft has said Microsoft 365 apps get security updates until October 10, 2028.

Which Office version has the longest support left?

Office 2024 and Office LTSC 2024 have the longest support of any one-time-purchase version, with security updates until October 9, 2029. Microsoft 365 has no fixed end date while you subscribe. Every other perpetual version, including Office 2021 from October 13, 2026, is out of support.

Conclusion

The Office end of support calendar is simple once it is in one table: Office 2016 and 2019 ended in October 2025, Office 2021's support end date is October 13, 2026, and Office 2024 runs to October 9, 2029. If your version is on the expired list, moving to a genuine Office 2024 Professional Plus licence keeps you patched for years without a subscription.

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