What is a good CAC payback period?

Under 12 months is good for most SaaS companies. Under 6 months is best-in-class. Enterprise SaaS can go to 18-24 months due to higher contract values and longer sales cycles.

How is CAC payback period different from simple payback?

CAC payback uses gross margin contribution, not raw revenue. This accounts for the cost of delivering the product. Simple payback using revenue alone overstates recovery speed.

Can payback period be negative?

No. If your gross margin or ARPU is too low relative to CAC, payback extends indefinitely. This indicates poor unit economics that need correction before scaling.

How does pricing affect payback period?

Higher pricing directly improves payback by increasing monthly contribution. A 20% price increase can reduce payback by 15-25% assuming same conversion rates. Track payback period per segment with [Baremetrics](https://baremetrics.com?via=saastainednumbers).

Should I calculate payback by customer segment?

Yes. Different segments (SMB vs Enterprise, self-serve vs sales-assisted) have dramatically different CAC and ARPU. Segment-level payback reveals which customer types are most efficient.

How does churn affect payback?

Payback assumes the customer stays at least that long. If median customer lifetime is shorter than payback period, you never recover CAC - a critical business model problem.

What is the relationship between payback and growth?

Shorter payback allows faster reinvestment. If payback is 6 months, you recycle each dollar of acquisition spend twice per year. At 12 months payback, you recycle once per year.

How do I improve my payback period?

Increase ARPU through pricing or upsells, reduce CAC through channel optimization, improve gross margin, or target higher-value customer segments.

CAC Payback Period Calculator

Calculate how many months it takes to recover your customer acquisition cost through gross margin contribution.