Microsoft Office 2021 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
Microsoft Office 2021 is actively supported. It reaches end of life on 13 Oct 2026.
65 days of security support left
96% of this branch's supported lifetime has elapsed — 5 Oct 2021 → 13 Oct 2026.
Support timeline
Official dates from the Microsoft Office release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 5 Oct 2021 | — |
| End of life (scheduled) | 13 Oct 2026 | in 65 days |
| Latest release | — | current |
How much runway a newer branch buys
Moving to Microsoft Office 2024 extends security support by about 1,092 days.
| Branch | End of life | Days left | vs 2021 |
|---|---|---|---|
| Microsoft Office 2024 | 9 Oct 2029 | 1,157 | +1,092 days |
| Microsoft Office 2024-ltsc | 9 Oct 2029 | 1,157 | +1,092 days |
| Microsoft Office 2021 | 13 Oct 2026 | 65 | this branch |
Frequently asked questions
When does Microsoft Office 2021 reach end of life?
Microsoft Office 2021 reaches end of life on 13 Oct 2026 — 65 days from now. After that date it receives no security fixes.
Is Microsoft Office 2021 still supported?
Yes. Microsoft Office 2021 is currently maintained. Latest release: —.
What happens when Microsoft Office 2021 reaches end of life?
Security fixes stop. After 13 Oct 2026 this branch receives no further updates under standard support.
How long do I have to upgrade from Microsoft Office 2021?
65 days. Moving to Microsoft Office 2024 instead buys roughly 1,092 more days of security support.