How Much Does a Power BI Migration Cost in 2026?
It's the first question most organisations ask — and the honest answer is: it depends. But "it depends" isn't useful when you're trying to build a business case. This article breaks down what actually drives Power BI migration costs, what realistic budget ranges look like in 2026, and how to scope a project accurately before committing.
What Drives the Cost of a Power BI Migration?
Power BI migration costs are almost entirely driven by four factors. Get a handle on these and you can estimate with reasonable accuracy:
1. Number of Reports
The volume of reports being migrated is the primary cost driver. A straightforward migration of a single-source, lightly-calculated report might take a day. A complex multi-source report with intricate business logic might take a week. Large organisations often have hundreds of reports — many of which haven't been used in years and don't need to be migrated at all.
2. Report Complexity
Not all reports are equal. A simple tabular report with basic filters and static calculations costs far less to migrate than one with complex calculated measures, multiple data sources, drill-through paths, and dynamic security. Complexity scoring your report estate before committing to a budget is essential.
3. Data Model Complexity
How many data sources are involved? Are they on-premises or cloud? How clean and well-structured is the underlying data? Migrations involving complex SSRS datasets with embedded SQL, SAP BusinessObjects Universes, or fragmented spreadsheet-driven data all require more data modelling effort in Power BI — and that adds significant cost.
4. Validation Requirements
Data accuracy validation is non-negotiable but variable in cost. A straightforward migration with clean data and a small user base can be validated efficiently. Migrations involving complex business rules, multiple stakeholder sign-offs, and large datasets require more structured UAT — and more consultant time.
The hidden cost: Internal resource time. Even with an external consultant running the migration, your team will spend time on requirements gathering, data access, UAT, and stakeholder management. Budget at least 20–30% of the total consultant days as internal effort alongside any external engagement.
Typical Cost Ranges in 2026
Based on market rates for senior Power BI migration consultants in the US and UK:
These ranges assume senior, specialist practitioners. Junior Power BI developers learning the platform during delivery will cost less per day but deliver more rework, slower timelines, and higher risk of accuracy issues — often making them more expensive overall.
What's Usually Included (and What Isn't)
Typically included in a fixed-scope migration engagement:
- Discovery and report inventory / complexity scoring
- Data model design and build (Power Query + DAX)
- Report development in Power BI Desktop / Report Builder
- Row-Level Security design and implementation
- Output validation against legacy system
- Gateway configuration and refresh schedule setup
- Handover documentation and knowledge transfer
Usually out of scope (and commonly missed in initial budgets):
- Infrastructure changes (e.g. moving on-premises SQL to Azure SQL)
- Data quality remediation in source systems
- Power BI licensing cost itself (separate Microsoft spend)
- Change management and end-user training (often underestimated)
- Post-go-live support and enhancement work
How to Get an Accurate Estimate
The only reliable way to get an accurate project estimate is a structured Discovery phase before committing to build. A proper Discovery should:
- Inventory every report in the legacy system with usage statistics
- Score each report for complexity (Low / Medium / High)
- Identify data sources, gateway requirements, and security model
- Prioritise reports by business value and usage
- Identify quick wins (simple reports that can be delivered fast) vs complex items
- Produce a phased delivery plan with effort estimates by phase
A well-run Discovery typically costs 5–10% of the total build estimate and pays for itself many times over by preventing scope surprises and enabling better decision-making about what to actually migrate vs retire.
At Fusion Data Partners, we offer a fixed-price Discovery phase for every migration engagement. You get a complete inventory, complexity-scored backlog, phased plan, and accurate build estimate — before any build budget is committed.
Questions to Ask Any Migration Consultant
- How do you validate that the migrated reports match the legacy output exactly?
- What's your process for handling reports where the source data logic is unclear or undocumented?
- Are the people doing the Discovery the same people who'll do the build?
- How do you handle scope creep — what happens when requirements change during build?
- What does your handover look like — will my internal team understand what was built and why?
Want an accurate estimate for your Power BI migration?
Start with a fixed-price Discovery phase. We'll inventory your legacy estate, score every report for complexity, and give you a phased build plan with real numbers — before any build budget is committed.
Book a Free Consultation →