CAC payback calculator
How many months until a new customer has actually paid for themselves? Four numbers, one honest answer.
What this tool does: it takes your CAC, average order value, gross margin and yearly order frequency, and returns your contribution per order and the months needed to earn the CAC back. Under 6 months is healthy by current investor expectations, 6–12 is a watch zone, and beyond 12 is a structural problem.
Blended cost to acquire one new customer, ad spend included.
Average order value.
After product, shipping, gateway and packaging costs.
Average repeat rate. First order counts — a one-time buyer is 1.
CAC payback
Verdict bands per current investor expectations; context and published CAC movements in CAC benchmarks for D2C food brands in India.
Why payback beats ROAS
Platform ROAS tells you what a rupee of ads returned in revenue this week. Payback tells you when the cash actually comes home — and it is the number that decides whether you can afford to grow. As our CAC benchmarks guide puts it: your affordable CAC is set by contribution per order and repeat rate inside your payback window, not by a category table.
If the months look ugly, the fix usually is not in the ad account. Raise AOV, improve margin, lift repeat rate — see how to reduce CAC for the levers with published results behind them. And once you know your affordable CAC, size the whole budget with the marketing budget calculator.
Questions, answered
What is CAC payback and how is it calculated?
CAC payback is the number of months it takes the contribution from one customer to earn back what you paid to acquire them. The formula: payback = CAC ÷ (AOV × gross margin × orders per year ÷ 12). The bracket is your monthly contribution per customer.
What is a good CAC payback period for a D2C brand in India?
Under 6 months is healthy by current investor expectations. 6–12 months is a watch zone — you are funding growth out of working capital for up to a year. Beyond 12 months is a structural problem: AOV, margin or repeat rate has to change before you scale spend.
How do I shorten my CAC payback?
Four levers, in order of control: raise AOV with bundles and pack architecture, improve gross margin, increase repeat rate inside the payback window with retention flows, and cut CAC itself through creative and funnel work. Only the last one is a media lever, which is why payback problems are rarely solved in the ad manager.
Now run it on your real numbers
A calculator gives you the shape of the problem. A Growth Audit gives you the fix: we tear down your funnel, creative and unit economics, free and with no pitch, and hand you a 90-day roadmap you keep.
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