Keywords · Finance · Ops · Updated 2026-07-21

What is SaaS Magic Number?

Short answer: A ratio of net new annualized revenue generated to the sales and marketing spend from the prior period, used to gauge go-to-market efficiency.

Definition

A ratio of net new annualized revenue generated to the sales and marketing spend from the prior period, used to gauge go-to-market efficiency.

Why it matters for growth

A magic number above 0.75 typically signals it's efficient to keep investing in sales and marketing; below that, spend may be outpacing returns.

Example

A company generating $400,000 in net new ARR after spending $500,000 on sales and marketing last quarter has a magic number of 0.8.

FAQ

What is SaaS Magic Number?
A ratio of net new annualized revenue generated to the sales and marketing spend from the prior period, used to gauge go-to-market efficiency.
Why does SaaS Magic Number matter for growth?
A magic number above 0.75 typically signals it's efficient to keep investing in sales and marketing; below that, spend may be outpacing returns.
What is an example of SaaS Magic Number?
A company generating $400,000 in net new ARR after spending $500,000 on sales and marketing last quarter has a magic number of 0.8.
What is SaaS Magic Number? Definition and growth use · Cofounderbase