Should I Build Custom Software or Buy Existing Software?

Question LavisTech · · 1 min read

Quick answer

Buy when the job is common and you can change how you work. Build when the job is how you compete, or when you are already paying more in workarounds than a focused system would cost. Buy accounts, email and payments. Build the operational middle that is actually yours. The full comparison is custom software versus off-the-shelf; this page is the decision in four sentences.

Four sentences, then go deeper

If a reputable product already does 80 percent of the job and you can live with the other 20 percent, buy it. If staff time is going into fighting the product, or into Excel beside it, you are past that point. Do not build Tally. Do not buy a “flexible platform” that needs a year of customisation you will not own.

The table, the hybrid, and the failure modes are on custom software versus off-the-shelf. Money is on how much custom software costs.

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