How to Plan a User Acquisition Budget
A good UA budget is not a number you pick, it is an output of your economics. How to size and allocate spend from payback up.
Key takeaways
- Your UA budget should fall out of payback and LTV, not be set as a fixed line item.
- If payback clears and cash allows, spend is scalable rather than capped.
- Always ring-fence a slice of budget for testing new channels and creative.
Most teams set a UA budget the wrong way round: they pick a number, then try to spend it. Strong operators do the opposite and let the economics decide how much to spend.
Budget as an output, not an input
If a cohort pays back inside an acceptable window and your cash can fund the wait, spending more is rational, not risky. The budget becomes an output of payback, LTV and cash, not an arbitrary cap set in a planning meeting.
Allocating across channels
Weight budget toward the channels that clear payback, while keeping enough diversity that you are not hostage to one source. Allocation is dynamic: it should follow the math as efficiency shifts, not sit fixed for a year.
Ring-fence testing
Always reserve a fixed slice for testing new channels, creative and audiences. Without it you optimize yourself into a corner, squeezing today's winners while the next one goes undiscovered.
Cash and pacing
Payback governs how fast you can recycle cash into the next cohort, which sets your real pace of growth. Plan spend against that cash rhythm, not against a calendar-driven annual figure.
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