Every growing business eventually faces the build-versus-buy question: commission custom software, or buy an existing product and adapt to it. The debate often starts with price and stalls there, but price alone is a poor guide. The right decision weighs how unique your workflow is, how fast you need value, what the software will cost over years, and who will maintain it when the original team moves on.
How unique is the workflow, really?
Be honest about uniqueness: many workflows feel unique because they grew organically, but their core — sales pipeline, invoicing, stock control — is standard and well served by existing products. Custom building is justified when the workflow itself is the competitive advantage, or when no product covers a genuinely unusual process. If a product covers most of the need, adapting your process slightly is usually cheaper than building the missing piece from scratch.
Total cost, not launch cost
Buying looks cheaper at launch and building looks expensive, but compare over three to five years: licences and per-user fees against development and maintenance, implementation and training on both sides, and the cost of changes as the business evolves. Bought software can become expensive as user counts and add-ons grow; custom software can become expensive if it needs a developer for every small change. Include an exit cost too: what it takes to leave the product, or to hand custom code to a new developer.
Time, risk and control
Buying delivers value in weeks and carries proven reliability, but limited control: the vendor's roadmap, pricing changes and feature removals affect you. Building takes months, carries project risk, but gives full control over features, data and integrations. A hybrid is often best: buy the standard parts — accounting, CRM, email — and build only the distinctive piece that connects them or serves your unique process. That mix captures most of the value of both routes.
A checklist before you decide
Before committing, answer in writing: what problem, exactly, does this solve; what happens if we do nothing for a year; who owns the decision and the maintenance; what does success look like in twelve months; and what is the exit plan. Share those answers with the people who will use the software daily — their acceptance decides success more than any architecture choice. Build vs buy is not a permanent identity; it is a decision per system, revisited as the business changes.
Want help putting this into practice for your own business? Get in touch and tell me about your project — I will give you a straight answer on the best next step.
