Guide
What is market validation?
Market validation is the process of proving — before you build — that a specific group of people has a problem they will pay you to solve, that you can reach them affordably, and that delivering the solution leaves you a margin. It converts an idea into evidence.
It is the cheapest work in a startup and the most commonly skipped. Below: how validation differs from market research, the four questions it must answer, what a pass and a fail actually look like, and a worked example with numbers.
Market validation vs market research
Market research describes a market: its size, its trends, who competes in it. Market validation tests a specific claim — that a named group of people has a problem painful enough to pay you to solve it. Research can be true and still leave you with an unsellable product; validation is the part that binds the market to your idea.
The practical difference is evidence type. Research produces reports. Validation produces behaviour: someone books a call, pre-orders, signs a letter of intent, or pays for a manual version of the service. Statements of interest are not validation. Commitments of money, time or reputation are.
The four questions market validation must answer
1. Is the problem real and frequent? A problem people hit weekly gets solved; one they hit yearly gets tolerated. Write down frequency and the current workaround.
2. Is the market reachable? A large market you cannot reach cheaply is worse than a small one you can. Name the specific channel: a community, a search term, a partner, a list.
3. Will they pay, and how much? Price is part of the test, not something to decide later. Put a number in front of people early and watch what happens.
4. Can you deliver profitably? Cost the delivery bottom-up — engineering, infrastructure per user, support, fees, compliance. Many validated problems become bad businesses at the unit level.
What validated and invalidated look like
Validated: a defined segment, a repeatable channel, several people paying or committing at your intended price, and a cost per user that leaves margin. You still may fail on execution, but the premise holds.
Invalidated: enthusiasm without commitment, a segment you cannot describe precisely, or economics that only work at a scale you have no route to. Stopping here is a win — it saves the months and money the build would have consumed.
A worked example
Idea: a scheduling tool for independent physiotherapists. Validation is not 'the healthcare software market is worth billions'. It is: 400 solo physios in this city, they lose roughly two hours a week to phone rebooking, they currently use paper diaries and WhatsApp, eight of eleven interviewed said they would pay a modest monthly fee, three paid upfront for a pilot, and delivery costs a few units of currency per practitioner per month. That is a validated premise with numbers attached.
Run this on your own idea
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