The most common pricing mistake first-time founders make isn't picking the wrong number. It's not picking a number at all. "Free for now, we'll figure it out" sounds humble and customer-friendly. It's neither. It's a way to avoid finding out whether your idea actually works.
Why "free now, monetize later" fails
Free users behave differently from paying users. They sign up out of curiosity, never come back, give meaningless feedback, and churn invisibly. You learn nothing about whether the product solves a real problem — only that people will accept free things, which is not a useful signal.
Charging from day one filters for users who actually feel the pain. Their feedback is honest. Their churn is loud. Their referrals are real. See the Frequency & Pain dimension in The 8 Dimensions.
The "smallest credible price" rule
Don't price low to be friendly. Price at the smallest amount your target user wouldn't blink at. For most B2B niches, that's $19–$49/month. For prosumers, $9–$19. Below those numbers you're signaling "this isn't serious."
The "what they already pay" anchor
Find out what your target users currently spend to solve the problem — VAs, spreadsheets, half-working tools, lost time. That number is your anchor. Price below it and you're an obvious yes. This is one of the structural advantages outsider founders have (see Why Non-Technical Founders Have a Massive Advantage) — you already know what they pay because you've been in their seat.
Why outsiders chronically underprice
Outsiders price based on what they personally would pay, not what their target user would pay. A solo dentist will pay $200/month for a tool that saves an hour a day. The founder, looking at their own wallet, prices it at $19. That's leaving 90% of revenue on the table — and weirdly, charging more often increases adoption because it signals quality.
What to charge in the first 30 days
Pick a price. Charge it. If nobody pays, you have data. If people pay reluctantly, raise it slowly. If people pay without blinking, you priced too low. Iterate. The single worst move is to wait six months in free mode and "see what happens."
Pair this with the demand experiments in 7 Cheap 48-Hour Experiments. The pre-sell landing page in particular is the cleanest pricing test you can run.