Cloud & DevOps · Topic cluster spoke
Enterprise cloud migration costs explained
What drives cloud migration TCO, where budgets break, and how FinOps should sit inside the programme.
18 Aug 2026 · 7 min read
How much does enterprise cloud migration cost?
Enterprise cloud migration cost varies widely by portfolio size, but budgets usually include discovery, remediation, dual-running, data transfer, licensing, professional services, training, and ongoing cloud consumption after cutover.
Cost modelling belongs inside your Enterprise Cloud Migration Strategy, not as a spreadsheet after go-live.
Where budgets usually break
- Dual-running old and new platforms longer than planned.
- Hidden application remediation discovered mid-wave.
- Untagged resources and orphaned environments after cutover.
- Licensing surprises for databases and middleware.
- Data egress during repeated sync and test cycles.
A simple TCO checklist for CFOs and CTOs
- Estimate discovery and remediation for the first two waves only.
- Price dual-running with a hard decommission date per wave.
- Model steady-state cloud spend with tagging and owners.
- Include training and platform operations headcount.
- Reserve contingency for security and compliance findings.
Example cost lenses (illustrative)
| Lens | Question to ask | Owner |
|---|---|---|
| One-off | What must we spend to leave the data centre? | Programme |
| Dual-run | How many months will both stacks exist? | CTO / CFO |
| Run | What is the monthly bill after optimisation? | FinOps |
| Risk | What compliance work is non-negotiable? | CISO |
Continue with the full Enterprise Cloud Migration Strategy pillar for phase-by-phase planning.
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