The Build vs Buy Decision Framework

The Question That Haunts Every Tech Decision

"Should we build it ourselves or buy something off the shelf?"

I hear this question at least once a week. And I've seen companies make catastrophic mistakes in both directions—building when they should have bought, buying when they should have built.

The Build Trap

The fantasy: "We'll build exactly what we need, it'll be perfect for our workflow, and we'll own it forever."

The reality: It takes 3x longer than estimated, costs 5x more than planned, and you now have a custom system that only your team understands.

The Decision Framework

Question 1: Is this a core differentiator?

If the software directly creates competitive advantage—if it's the thing that makes you you—consider building. If it's operational infrastructure (CRM, accounting, HR), buy.

Question 2: How unique are your requirements?

• 80%+ standard: Buy and configure

• 50-80% standard: Buy and customize

• Less than 50% standard: Consider building

Question 3: What's the total cost of ownership?

For buying: License fees, implementation, training, integration costs

For building: Development (multiply by 3), maintenance (15-20% annually), technical debt

Question 4: What's your technical capacity?

Building requires developers who stay, product management, QA processes, and security expertise. If you don't have these, buy.

Question 5: How fast do you need it?

Building takes 6-18 months. Buying takes 1-3 months. If speed matters, buy now.

The Hybrid Approach

• Buy the platform, build the integrations

• Buy for now, build for scale

• Build the core, buy the rest

The Bottom Line

Most businesses should buy more than they build. Before building anything, ask: "Is there a reason this doesn't exist already?"

What's the biggest build vs buy decision you're facing right now?