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MVP to fintech-grade: what changes when real money shows up

Most MVP advice assumes mistakes are cheap. Ship something thin, see what breaks, fix it next sprint.

That works fine until the product touches money, identity, or a regulated workflow — which describes most FinTech products from day one.

A clunky onboarding flow is a UX problem you iterate on. A wrong automated decision in a payment flow is a reconciliation problem, and possibly a compliance one, before anyone even reports a bug.

So a FinTech MVP isn't a smaller version of the end product. It's a different kind of build, with a much shorter list of things you're allowed to get wrong.

The hard part isn't accepting that — most founders get it in theory. The hard part is drawing the line: which ~20% of the product actually carries that risk, and which 80% can still move at normal MVP speed without anyone getting hurt.

The longer version — including the two directions teams usually get that split wrong, and three things a fintech-grade first release gets right from day one — is on our blog: https://baseblocks.tech/blog-posts/mvp-to-fintech-grade

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