There is a number that customer-success teams know and never say out loud: the marginal cost of adding a teammate to a SaaS product is functionally zero. Engineering wrote the multi-tenant code six years ago. Auth was added in one sprint. Operations doesn't scale linearly with the seat count of any individual customer.
And yet — your bill scales linearly with seat count.
A worked example
You're a Series-A SaaS. Your customer support team is 4 people. You picked the chat tool that everyone picks. Sticker price: $89 / agent / month, a number no one really questions because the unit looks reasonable.
- →4 agents × $89 × 12 = $4,272/yr baseline
- →You hire 2 more in Q2 → +$2,136/yr (+50% on the baseline)
- →You hire an intern for the summer → +$534 for 3 months of basically nothing
- →CFO sees the line item, asks why it's up 60% YoY → entire week burned
The hidden behavior change
The number isn't the worst part. The worst part is what the number does to your hiring decisions. Founders we've interviewed admit they've done one of these in the last year:
- 01Skipped giving an intern a seat → intern shoulder-surfs through someone else's laptop
- 02Forgot to remove a seat after offboarding → paid 6+ months for a ghost
- 03Bought "team plan" for one product to dodge the seat count → got hit on a different one
- 04Spent a month evaluating cheaper alternatives → opportunity cost > the savings
What flat pricing changes
When the bill is flat, the headcount question disappears. You add the marketing intern. You add the freelancer. You add the founder. The product's value goes up and the bill stays the same.
Our four numbers are $12 · $24 · $49 · $99 and they cover ~99% of teams. The fifth number is "talk to us" and it's for the customers who genuinely don't fit, not as a sales-qualifying funnel.
But how do you make money?
Same way every SaaS does — gross margin × volume. We just don't price-discriminate based on a number that doesn't correlate with our cost. Bigger teams use the product more, churn less, and refer more. That's already a great unit economic.