The Hidden Costs of Power BI Reporting
Many businesses are attracted to Microsoft Power BI because it appears to offer a cost-effective way to improve reporting. The software itself is relatively accessible, and the ability to create dashboards and visualisations can make it seem like a straightforward solution.
However, for many SMEs, the true cost of Power BI reporting is not immediately obvious.
While the initial setup may appear affordable, the ongoing effort required to build, maintain and adapt reporting can introduce hidden costs over time.
The first cost is development time.
Power BI dashboards do not build themselves. Data must be extracted from source systems, transformed into the correct structure and modelled in a way that supports reporting. This process often requires technical expertise and a detailed understanding of how the business operates.
Many organisations rely on external developers or consultants to complete this work. While this can deliver good results initially, it introduces a dependency on external support.
As reporting requirements evolve, additional development work is often required. New reports may need to be created, existing dashboards updated and data models adjusted to reflect changes in the business.
These changes are rarely one-off. Reporting requirements tend to grow over time, meaning that development costs can continue long after the initial project has been completed.
Another hidden cost is internal time.
Even when external developers are used, someone within the business still needs to take ownership of the reporting process. This may involve managing requirements, checking data accuracy and coordinating updates when changes are needed.
For SMEs without dedicated BI teams, this responsibility often falls to finance or operational staff. Time that could be spent analysing data or supporting the business is instead used to manage reporting.
There is also the cost of complexity.
Power BI relies on data models, relationships and calculations that must be maintained over time. As reporting becomes more sophisticated, these models can become increasingly complex.
Changes to one part of the model can affect other reports, meaning that updates must be handled carefully. Without the right expertise, even small changes can take longer than expected.
One finance director described how their organisation initially implemented dashboards but found that making adjustments became increasingly difficult as the system evolved. What seemed simple at the start required more time and specialist knowledge as reporting needs grew.
Another important factor is continuity.
Power BI solutions are often built by a specific developer who understands how the data has been structured and how the reports function. If that individual becomes unavailable, the business may struggle to maintain or adapt the reporting environment.
This can lead to additional costs as new developers need time to understand the system before making changes.
Over time, these factors contribute to the total cost of ownership. While the software itself may be affordable, the ongoing effort required to maintain a Power BI reporting solution can become significant.
For many SMEs, the challenge is not building dashboards — it is sustaining them.
Illuminis provides a different approach through the Octelas business reporting platform.
Rather than delivering a one-off reporting project, illuminis acts as a long-term data partner. The reporting system is designed, implemented and maintained as part of an ongoing service.
This begins with understanding how the business currently reports its data. Existing spreadsheets, calculations and reporting logic are interpreted and recreated within a structured reporting environment.
By doing this, the system reflects how the business actually operates, removing the need for complex data modelling within the organisation.
Once implemented, reporting is automated and maintained. Updates, changes and ongoing support are handled without requiring internal expertise.
This significantly reduces the hidden costs associated with maintaining a reporting solution.
One managing director described the impact as not only a time saving, but also a reduction in the internal burden of managing reporting. Instead of coordinating developers and maintaining dashboards, the business had a reporting system that was supported and developed over time.
For SMEs, the real cost of reporting is not just the software — it is the time, expertise and effort required to make it work.
While Power BI can be a powerful tool, many organisations find that a fully managed reporting solution provides a more predictable and cost-effective approach.
By removing the need for ongoing development and internal management, businesses can focus on using their data to drive performance rather than maintaining the reporting infrastructure.