Payback Period
Definition
Payback period is the amount of time it takes for the gross margin generated by a customer, investment, or project to recover its upfront cost.
How it comes up in fundraising
In SaaS fundraising, “payback period” almost always means CAC payback: how many months of gross margin from a new customer it takes to recoup what was spent acquiring them.
Frequently asked questions
What is a good CAC payback period?
Under 12 months is considered strong for SaaS, 12 to 18 months is acceptable, and anything beyond 18 to 24 months raises questions about capital efficiency.
Why does payback period matter more than CAC alone?
It ties acquisition cost to how fast that cost is recovered, showing whether growth is capital-efficient or quietly consuming cash the company does not have.
Round Funded resources
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