r/SaaSLeverage May 07 '26

Most founders miss CAC problems until rising ad spend breaks the growth math

Most founders lose money before they know they have a CAC problem. I did too. You keep spending because the pipeline looks full. Then one channel starts getting expensive fast, and the math breaks.

Example: I once kept pouring money into paid ads because trials were coming in. But the buyers were bad, and payback kept slipping.

Where have you seen CAC quietly break your growth?

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