PALLAS / CALCULATOR

CAC Payback Period Calculator

Estimate how many months of customer contribution are required to recover acquisition cost.

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INPUT

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Updates as valid inputs change.
Method & formula

Monthly customer revenue is converted into gross-margin contribution and reduced by monthly service cost. CAC is divided by that monthly contribution.

  • Monthly contribution = monthly revenue x gross margin - monthly service cost
  • Payback months = CAC / monthly contribution
Example

A CAC of 120 and monthly contribution of 35 gives a payback period of about 3.43 months.

FAQ

What if monthly contribution is zero or negative?

The calculator returns no finite payback period because the entered economics do not recover CAC.

Is this a forecast?

No. It is deterministic planning arithmetic based on the assumptions you enter. Actual commercial performance can differ.

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