Office 365 Migration Cost Calculator: Hidden Costs & True TCO Explained
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Written By
Aradhya Jain -
Approved By
Shivam Rathore -
Updated on
August 18th, 2026 - Read Time
6 minutes
User Query: How much does an Office 365 migration cost? We’re ready to transfer our company’s Microsoft 365 data to a new setup. I know the migration tool is only one part of the budget. There may also be Microsoft 365 licensing, IT staff time, backup and recovery planning, testing before the cutover, possible downtime, and extra support for users after the migration. Before we commit to this project, I want to figure out how to actually calculate the true cost of this migration.
Introduction: Planning an Office 365 migration is not simply a matter of choosing a migration tool and multiplying its price by the number of users. The actual budget can include many other expenses. You may need new Microsoft 365 licenses, temporary licenses during the transition, IT staff hours, backup storage, testing, and time spent fixing migration errors.
Two organizations with the same number of users may therefore have very different migration budgets. A small business moving a few mailboxes with a simple setup may have limited requirements. A larger organization migrating hundreds of users and multiple workloads may need considerably more time and resources. This guide explains the major Office 365 migration costs and provides a simple way to estimate total cost of ownership (TCO). Also, it shows how the DRS Softech Office 365 Backup Tool supports Office 365 migration.
What Is the True Microsoft 365 Migration Cost?
The true migration cost is the amount your organization spends from the planning stage through the final cleanup and support stage. A simple TCO formula is:
Total Office 365 Migration Cost = Licensing + Migration Tool + IT Labor + Backup + Testing + Downtime + Training + Support + Contingency
Not every project will have all these expenses. Some organizations may already have licenses or internal backup systems. Others may need additional services for a large or complicated migration. The formula is therefore a starting point rather than a fixed price.
Licensing Costs: The Overlap You Should Include in Your Budget
Every migration comes with a stretch where you’re paying for both platforms at once — the one you’re leaving and the one you’re moving into. Take a Google Workspace to Microsoft 365 migration as an example: for that overlap period, you’re covering Google Workspace Business licenses and Microsoft 365 licenses for the same set of users, since both need to stay active until the move is complete.
Tenant-to-tenant migrations, those carried out during mergers and acquisitions, can make this overlap more significant. Both organizations may already have Microsoft 365 licenses running in separate tenants. In that situation, the migration can mean keeping two existing licensing environments active in parallel for longer than originally planned.
DRS Softech License Cost: Office 365 Migration Pricing Based on Your Migration Size
The migration software is another part of the overall project budget. DRS Softech offers different license options, so the right choice depends on how many user accounts you need to handle and how the migration will be managed.
The current DRS Softech Purchase Page lists four options: Home, Administrator, Technician, and Enterprise. Home license accommodates 25 users, Administrator 50 users, Technician 150 users, and Enterprise 300 users. The validity period of licenses mentioned in the list is 1 year for Home and Administrator, 2 years for Technician, and 3 years for Enterprise.
DRS Softech Office 365 Migration Cost Calculator
|
License |
User Accounts |
Validity |
Cost |
|
Home |
Up to 25 |
1 Year |
$99 |
|
Administrator |
Up to 50 |
1 Year |
$199 |
|
Technician |
Up to 150 |
2 Years |
$599 |
|
Enterprise |
Up to 300 |
3 Years |
$999 |
Customized Migration Service for Specific Requirements
Not every migration fits into a standard license plan. If you have a large amount of data or a migration with specific requirements, DRS Softech also offers customized migration assistance. You can share your migration requirements and data details with the DRS Softech team, and the team can handle the migration based on your specific needs.
The cost of a customized migration depends on several factors, such as the amount of data, number of user accounts, source and destination platforms, type of data, migration complexity, and other project requirements. Therefore, there is no fixed price for every customized migration.
If you are unsure about the right migration option or want to discuss a specific project, you can contact the DRS Softech team through Live Chat Support and share your requirements. The team can review the project details and provide information about the available migration options and estimated cost.
Real-Life Scenario: Microsoft 365 Migration Cost
An IT team planning a 250-mailbox migration after a merger initially budgets only for the software license. Planning uncovers more: licensing overlap, staff hours, a backup taken with the Microsoft 365 Backup Tool, pilot testing, permission checks, user support, and contingency. A pilot run on a small group surfaces folder-mapping and permission issues before the full rollout. Because they’d already backed up mailboxes locally beforehand, the team resolves these without risking all 250 mailboxes — proving the tool price was never the real budget number.
Note: For detailed instructions on using the DRS Softech Microsoft 365 Backup Tool, refer to the software user guide.
Conclusion
The actual Office 365 migration cost is more than the price of migration software. Microsoft 365 licensing overlap, IT labor, backup, testing, DNS configuration, downtime, training, support, and unexpected troubleshooting can all affect the final budget. A practical TCO calculation helps businesses understand these expenses before migration begins. By assessing the environment, running a pilot, protecting data with a backup, and planning for unexpected work, organizations can create a more realistic migration budget and reduce costly surprises.
Frequently Asked Questions
Ans. It is possible for downtime to raise costs due to loss of productivity and more IT support required. Its influence would depend on the number of people affected and the period of downtime. Pre-migration and staged migration may reduce cutover time.
Ans. Some examples of hidden costs include license costs, personnel costs, backup, testing, DNS setup, training, and contingency costs.
Ans. Yes. IT teams may spend time preparing tenants, configuring authentication, mapping users, monitoring migration batches, troubleshooting errors, validating data, and supporting users.
Ans. However, there is no standard cost per user. The overall costs will vary depending on such factors as migration tool, number of users, amount of data to migrate, workload, and so forth.
Ans. They can be. Some projects may require additional features or licenses for workloads such as OneDrive, SharePoint, Teams, reporting, or advanced migration management. Check what is included in the base license before calculating the total budget.
Ans. Run a pilot, assess the environment first, plan licensing overlap, create a backup, automate repetitive tasks where possible, prepare DNS changes in advance, and allocate enough time for testing and user support.
Ans. Yes. DNS work can require IT time for updating and validating MX, Autodiscover, SPF, DKIM, and DMARC records. Mail-flow testing and DNS propagation can also add time to the project.
