Navigating the SaaS Conundrum: Buy vs. Build for Today's CFOs


In the rapidly evolving landscape of digital transformation, Chief Financial Officers (CFOs) are increasingly at the forefront of strategic decision-making about technology investments. A pivotal question that surfaces in boardrooms is whether to buy a ready-made Software as a Service (SaaS) solution or to build a bespoke system in-house. This decision is far from trivial, as it encompasses not only financial implications but also strategic, operational, and technological dimensions.

Understanding the Stakes

Buy: Opting for an off-the-shelf SaaS solution offers the allure of quick deployment, predictable costs, and immediate access to advanced features with minimal initial investment. However, this path often involves compromises on customisation, potential concerns over data security, and the perpetual nature of subscription costs.

Build: Conversely, developing a custom solution promises tailored functionality, full control over data security, and integration with existing systems. Yet, the build approach requires significant upfront investment, longer time to value, and assumes the risk of project overruns and technology obsolescence.

Strategic Considerations

Alignment with Business Goals

  • Buy: Is the solution strategic to your core business, or is it a support function that does not differentiate your company in the market?
  • Build: Does the unique functionality of a custom solution offer a competitive advantage or drive significant efficiency gains?

Scalability and Flexibility

  • Buy: Can the SaaS solution scale with your business needs, and how does the vendor handle feature requests or customisation?
  • Build: Do you have the resources and expertise to ensure the solution can evolve with your business?

Financial Implications

Cost Analysis

Buy: Consider not only the subscription fees but also the costs associated with integration, data migration, and training.

Build: Beyond initial development costs, factor in ongoing maintenance, updates, and the potential need for additional features or capacity.

ROI and Time to Value

Buy: SaaS solutions often offer a quicker return on investment due to faster deployment.

Build: A custom solution may provide greater long-term value but requires a careful evaluation of the time to realise benefits.

Operational Impact

Talent and Expertise

Buy: Leverage the vendor's expertise and support, reducing the need for in-house specialisation.

Build: Requires recruiting or developing talent with specific skills, which can be challenging in competitive labor markets.

Risk Management

Buy: Vendor dependency and the potential for service discontinuation or price increases pose risks.

Build: Project risks include delays, cost overruns, and the challenge of keeping pace with technological advancements.

Making the Decision

The decision to buy or build should not be taken in isolation but as part of a broader technology and business strategy. It requires a multidisciplinary approach, involving not just the finance team but also IT, operations, and business units. Key steps include:

  1. Comprehensive Needs Analysis: Understand the specific needs, must-have features, and unique business processes of your organisation.
  2. Market Research: Evaluate the landscape of available SaaS solutions and the capabilities of potential development partners.
  3. Financial Modeling: Conduct a detailed cost-benefit analysis, considering both direct costs and indirect benefits over a multi-year horizon.
  4. Risk Assessment: Analyse both paths for potential risks and develop mitigation strategies.