Guide
Build vs Buy Software: How to Decide in 2026
- Build software if your workflow is central to growth and requires deep integration.
- Buy SaaS if your needs are simple and you can afford recurring fees.
- Owning the code stops the cost from compounding and gives you control over the tool’s evolution.
Build vs buy software depends on whether you need a tool that scales with your team or one that scales with your budget. You’re not choosing between a solution and a cost — you’re choosing between ownership and recurring fees. The right choice hinges on how much your workflow depends on the tool and how long you’ll need it.
Related at Shattuck: how the build process works see a working demo before you pay
Build vs buy: the one-sentence answer
The build vs buy software decision is not about which is better, but which fits your business’s needs. If your team is stuck paying for SaaS tools that don’t align with your processes, building a custom solution might be the only way to stop the cost from compounding. If you can find a tool that meets your needs without requiring deep integration, buying might be the faster, cheaper route.
When buying SaaS is the right call
Buying SaaS is the right call when your team can’t afford the time or expertise to build something from scratch. SaaS tools are often cheaper upfront and require less maintenance. However, they come with recurring costs that add up over time. If your workflow is stable and doesn’t change much, buying is usually the safer bet.
When building custom software wins
Building custom software wins when your workflow is central to your business and can’t be replicated by off-the-shelf tools. If your team is scaling and needs a tool that can grow with them, building is the only way to avoid the cost of adding more SaaS subscriptions. It also ensures the tool is tailored to your specific needs, not just a generic solution.
What 'cost' actually means in build vs buy
The cost of SaaS is hidden in the recurring fees and the risk of vendor lock-in. If you buy a tool, you’re not just paying for the software — you’re paying for the vendor to maintain it, update it, and support it. Building software means you own the code and can evolve it as needed, without relying on a third party.
How owning the code changes the math
Owning the code means you’re not locked into a vendor’s pricing model. If you build your software, you can modify it, integrate it with other tools, and use it as part of your business’s core operations. This gives you flexibility and control that SaaS tools often lack. It also ensures that your team isn’t paying for a solution that doesn’t align with their needs.
A decision checklist you can run in 10 minutes
If your team is paying for multiple SaaS tools that don’t integrate, building a custom solution is worth considering. If the tool is central to your operations and needs to scale with your business, building is the only way to avoid recurring costs. If you’re not sure, run the checklist above and choose the option that aligns with your long-term goals.