CAC Payback Period Calculator
How many months until a customer earns back what you spent acquiring them? Critical for cash-strapped D2C.
About this tool
CAC payback period is the cash-flow companion to LTV:CAC. A 24-month payback might look fine on paper but starves a bootstrapped brand of working capital. Plug in CAC, AOV, gross margin and repeat cadence to see your payback in months, and what it does to your cash runway.
Payback period benchmarks
- • Under 3 months: exceptional. Reinvest aggressively.
- • 3–6 months: healthy for most D2C.
- • 6–12 months: common for premium D2C with high LTV. Manage cash carefully.
- • 12+ months: only viable with outside capital or a true subscription model.
How to shorten payback
Three levers: raise AOV on the first order (bundles, post-purchase upsells), cut CAC (lean harder on owned channels — email/SMS/SEO), and accelerate the second purchase (replenishment flows, post-purchase offers, loyalty).
More free tools
See all tools →Calculate present value of customer LTV using a discount rate (WACC), the format investors expect for fundraising.
Calculate the SaaS Quick Ratio, (new MRR + expansion) / (churn + contraction). Above 4 = healthy growth; below 1 = shrinking.
Compare margin on first subscription order vs renewals, first order usually loses money (CAC + discount), renewals are pure profit.
Calculate Contribution Margin 1, revenue minus COGS, per order or per unit. The first tier of D2C profitability.
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