Technology

Build vs buy software: a decision framework for growing businesses

By [Founder Name]2026-10-018 min read
The short answer

Buy when the process is common and a good product already fits most of your needs. Build when the software is your competitive advantage and you can afford to maintain it for years. Integrate when the pieces already exist and the problem is how they talk to each other. Most businesses should build far less than they think.

Start with the question behind the question

"Should we build or buy?" usually hides a better question: is this process something that makes us different, or something every business does? Accounting, payroll and email are the same everywhere. Your pricing engine or customer experience might not be.

The framework

QuestionPoints to buyPoints to build
Is it a competitive advantage?No, it's a standard processYes, it's how we win
Does a product cover 80% of needs?YesNo, and the gap matters
Can we maintain it for 5 years?We'd rather notYes, with a team or partner
How fast do we need it?WeeksMonths is acceptable
How unique is our data?StandardProprietary and valuable

The costs people forget

When building

  • Maintenance, security updates and hosting, every year, for as long as it runs.
  • The cost of the people who understand the code leaving.
  • Features you'll need later that a product would have included.

When buying

  • Per-user or per-transaction pricing that grows with you.
  • Changing your process to fit the product.
  • Lock-in: how hard is it to export your data and leave?

The third option: integrate

Often the right answer is neither. Many growing businesses already own good tools that don't talk to each other. Connecting them, directly or with an integration platform, can solve the problem for a fraction of a custom build.

From our work[A build-vs-buy decision PURSHO advised on, including the option we recommended against]

A simple rule

Buy what everyone needs, build what only you need, and integrate before you do either. For an independent view of your options, see our technology consulting.

How PURSHO approaches this

Technology & IT Consulting

Build, buy or migrate, decided with confidence.

Related case study
[Founder Name]

Founder, PURSHO. 12+ years in eCommerce, technology and growth.

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