The CAC payback period is how many months of gross profit from a customer it takes to earn back what you spent acquiring them. It is a cash flow lens on unit economics: a short payback frees cash to reinvest, while a long one ties up capital and raises risk if customers churn early. This calculator divides your customer acquisition cost by the monthly recurring revenue per customer multiplied by your gross margin, giving payback in months. Many subscription businesses aim for a payback under twelve months, and best in class often land under six. Enter your acquisition cost, monthly revenue per customer and gross margin, and the tool returns the payback along with a quick read on whether it is fast, moderate or slow. Use it to compare channels and pricing plans. Every calculation runs locally in your browser.
It is the number of months needed to recover acquisition cost from the gross profit a customer generates each month.
It divides customer acquisition cost by the monthly gross profit per customer, giving the months until you break even on that customer.
Only the profit portion of each payment repays the cost, so gross profit gives a realistic payback, not an overly fast one.
The CAC payback period is how many months of gross profit from a customer it takes to earn back what you spent acquiring them. It is a cash flow lens on unit economics: a short payback frees cash to reinvest, while a long one ties up capital and raises risk if customers churn early.
Yes. CAC Payback Period Calculator is completely free, with no sign-up and no usage limits.
Yes. CAC Payback Period Calculator runs in any modern web browser. There is nothing to download or install.
Yes. CAC Payback Period Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.