
Should I self-host Microsoft 365 Personal?
NOT REALLYkeep paying
$1.99/mo including 100GB and real Office compatibility. OnlyOffice self-hosts well, but nothing self-hosted opens a tracked-changes .docx from a lawyer with guaranteed fidelity. Keep paying.
The math (nothing hidden, including your time)
| Microsoft 365 Personal (Basic) | $1.99/mo |
| VPS share + storage | −$1.00/mo |
| Your maintenance: 30 min/mo at $20/h | −$10.00/mo |
| Net saving | $-9.01/mo |
| Setup: 15 min measured (one-time) | $5.00 |
| Break-even | never |
| Markup Index (price ÷ real self-host cost) | 0.2× |
Price: source, checked 2026-08-07. Inputs are stored in git; every number above is derived, never hand-written.
What you lose
- Office format fidelity when documents leave your house
- 1TB OneDrive at the family tier is absurdly cheap storage
What you're paying Microsoft 365 Personal for
- Word/Excel/PowerPoint
- OneDrive storage
- Outlook mail

Ranked alternatives
The Word, Excel and PowerPoint half of an office subscription, as a server your own file app hands documents to.
Hardware
Runs comfortably on a real VPS (2 GB+).
Verification
Protocol v1 · verified by zernonia on 2026-08-10 · setup measured at 15 min · AI assistant: claude-code (allowed & stated)
Full timed log
# Microsoft 365 Personal — verdict log - **Date:** 2026-08-10 - **Verdict:** NOT REALLY — keep paying - **Protocol:** v1 (2GB reference env, Docker preinstalled, AI assistant: claude-code) ## Why no compose file - This verdict is decided by economics/capability, not setup effort — the rubric doesn't require a timed install to conclude the subscription should stay (or that the replacement's cost lives elsewhere, e.g. GPUs, egress, or an installer script). ## The call $1.99/mo including 100GB and real Office compatibility. OnlyOffice self-hosts well, but nothing self-hosted opens a tracked-changes .docx from a lawyer with guaranteed fidelity. Keep paying.
Verdict history
- 2026-08-10: unscored → NOT_REALLY — Initial verdict: $1.99/mo including 100GB and real Office compatibility.