"Moving to the cloud" gets quoted as everything from a few thousand dollars to well into six figures, because the term covers wildly different projects. Here's what actually drives the cost of the migration itself, separate from ongoing cloud subscription costs.
What's Actually Being Priced
This is specifically about the migration project cost - the labour and planning to move your systems - not the ongoing monthly cost of running in the cloud afterward. Those are two different budget lines, and quotes that blur them together make comparison difficult.
What Drives Migration Cost
- Data volume - more data means longer transfer time and more validation work
- What's being moved - email and file storage migrate relatively simply; line-of-business applications with databases and custom integrations take considerably more planning
- Downtime tolerance - a business that can accept a weekend cutover costs less to migrate than one requiring near-continuous availability
- Data cleanliness - years of disorganised files add cleanup time that's easy to underestimate
- Number of integrations - systems that talk to each other need those connections re-established and tested post-migration
Realistic Cost Ranges
Email and File Storage Only
Migrating email and core file storage to Microsoft 365 or a similar platform, for a small business, typically runs $2,000-$8,000 depending on data volume and mailbox count. See our guide on email migration cost and process for this specific scenario.
File Server to Cloud Storage
Moving an on-premise file server to SharePoint or equivalent cloud storage, including permission structure and folder reorganisation, typically $3,000-$10,000. See our guide on migrating a file server to SharePoint for what this specific project involves.
Full Infrastructure Migration
Moving line-of-business applications, databases, and full server infrastructure to the cloud is the most involved category, typically $10,000-$40,000+ depending on application complexity and integration count.
Costs Businesses Commonly Underestimate
- Data cleanup and archiving before migration, rather than moving everything as-is
- Staff training on new tools and workflows after the move
- Testing and validation time, not just the data transfer itself
- A contingency buffer for issues discovered mid-migration, which is genuinely common
How to Get an Accurate Quote
A genuinely accurate quote requires a proper discovery phase - reviewing current data volume, applications in use, and integration points - before a fixed price is possible. Be cautious of a fixed-price quote given without this step; it's either padded to cover unknowns or likely to change once the real scope becomes clear.
Comparing Against the Alternative
The migration cost should be weighed against what staying on-premise would cost over the same period - hardware replacement, maintenance, and the growing risk of running ageing infrastructure. See our guide on on-premise server vs cloud for that broader comparison.
Frequently Asked Questions
Is migrating to the cloud cheaper than keeping an on-premise server long term?
Often, but not automatically - it depends on your current server's remaining life, your data volume, and ongoing cloud subscription costs. See our guide on on-premise server vs cloud for the full total-cost-of-ownership comparison, separate from the one-off migration cost covered here.
Can migration happen without any downtime?
For most small businesses, meaningful downtime can be minimised to a scheduled after-hours cutover window rather than eliminated entirely - some services need a brief switchover point. Full zero-downtime migration is achievable but adds cost and complexity that's rarely justified for a typical SMB.
What's the biggest hidden cost businesses don't budget for?
Data cleanup - migrating years of disorganised files as-is rather than reviewing and archiving what's no longer needed first. Skipping this step is faster upfront but means paying to store and migrate data that didn't need to move at all.
Should I migrate everything at once, or in stages?
Staged migration is usually lower-risk and easier to budget for - moving email and core file storage first, then line-of-business applications once the foundation is proven stable. An all-at-once migration is faster but concentrates risk into a single cutover window.
We scope cloud migrations properly before quoting, so the number you get reflects your actual data and applications, not a guess.
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Call 0433 087 091 - we'll scope your environment and give you a realistic, itemised cost estimate.
Get a Free Migration QuoteFor related reading, see our guides to moving to the cloud and on-premise server vs cloud.