Microsoft Office Office LTSC 2021
Ending Soon53 days left
- Released
- 16 Sep 2021
- Mainstream Support ends
- Not announced
- End of Support
- 13 Oct 2026
Recommended upgrade: Microsoft Office Office LTSC 2024 — Supported / 9 Oct 2029
There is no Extended Support phase. The official lifecycle table shows only a Mainstream End Date. Planning on the ten-year pattern of Office 2019 and earlier will leave you five years short.
Sources
Last verified: 2026-08-04