When Marketing Should Stop Spending

Rising acquisition cost is usually a reason to spend less, and the person asking for more is rarely the person who decides. At one company with $6M in revenue, payback on new customers crossed 18 months by October. In her planning meeting, the marketing manager (one person, plus an agency on retainer) asked the owner for a 40% budget increase to "optimize the channels." The owner approved it. It took about five minutes. At that company, twelve months later, the budget was 40% higher and payback had stretched to 23 months.

None of it is surprising. A channel that works at one budget doesn't double when you double the budget; it buys lower-intent traffic at the margin. The marginal customer costs more than the ones before, average CAC rises, and the next request is for more budget to make up the gap. Doubling a channel tends to halve what each dollar of it buys.

The ask made sense from where the marketing manager sat. Her bonus paid on qualified leads, and leads track spend almost one for one. More budget was the cheapest way to hit her number. Nobody had asked her to hit a cost number, so she didn't. A spend rule layered on top of that bonus sets up a quarterly argument. The rule loses.

The other half of the problem sat in the owner's chair. "Leadership approved the increase" sounds like a committee. In a company this size it's one person, the same one who signs the agency invoice and personally guarantees the bank line. That person can't hand the no to a policy, because she's the only one who can enforce it.

So the owner changes three things, and owns each one. She sets the payback ceiling herself, from numbers she already has: monthly gross profit per customer and how long she's willing to let the bank line carry the gap. Say she lands on 12 months, measured on loaded CAC, not the dashboard figure. Then she rewrites the marketing manager's bonus to pay on cost per closed-won customer and payback against that ceiling, with lead volume as a floor rather than the target. Now a cheaper channel that brings fewer, better leads raises the manager's pay instead of costing it.

Finally, she pulls the trigger. It's her call. When payback runs above the ceiling two months running, budget increases stop. The owner freezes them, the marketing manager picks what gets cut, ranked by cost per closed-won, and the agency retainer goes first if it ranks worst. The owner absorbs the dip: she lowers the pipeline forecast and the sales rep's lead quota for that quarter, so nobody downstream gets punished for a smaller number she chose.

The next budget ask will arrive with a better CAC promised for next year. Before she answers, the owner has one question to put to it: what did the last dollar we added buy?