A white-label engagement looks simple on a spreadsheet. Your partner charges you $1,200 a month to run an account. You charge the client $2,000. You booked $800 of gross margin and it took you no labor. Do that thirty times and you have a business.
Except the agencies running that math are usually the ones telling us, eighteen months later, that white label "doesn't really work" for them. The revenue grew and the margin didn't. Almost always, the cause is the same: they priced the fulfillment invoice instead of pricing the account.
1. You're pricing the wrong unit
A flat markup assumes every account costs you the same to hold. It doesn't. Two clients at identical spend can differ by a factor of five in how much of your week they consume — and none of that difference appears on your partner's invoice.
The variable that actually predicts your cost isn't ad spend. It's decision volume: how many times a month someone at your agency has to make a judgment call, write an explanation, or absorb a client's anxiety. A $40K/month ecommerce account with a marketing director who reads the dashboard herself is cheap for you to own. An $8K/month clinic whose owner calls about every lead is expensive.
Practically, that means your price sheet needs a second axis. We tell partners to score every prospective account on decision volume — low, standard, or high — and attach a fixed dollar amount to each band on top of the fulfillment cost. Not a percentage. A dollar amount, because the work is not proportional to spend.
2. The three costs you forgot to load in
When we audit a partner's pricing, the same three line items are missing every time.
Load those three in and the $800 of "free" margin in our opening example typically lands somewhere between $310 and $450. Still a real business — but not the one you thought you were running, and not enough cushion to absorb a single difficult account.
3. Setting a margin floor you can defend
A floor is only useful if you can say it out loud on a sales call without flinching. Ours is simple: no account enters the book below 45% gross margin after the three costs above, and no account below $1,800 in monthly fee regardless of margin percentage — because small accounts consume a fixed minimum of attention that percentages don't capture.
When a prospect pushes on price, the floor gives you something better than a discount: a smaller scope. Drop a platform. Move from biweekly to monthly reporting. Take the creative out. Every one of those is a real reduction in your cost, which means you can reduce the price honestly instead of quietly eating the difference.
4. Flat, percentage, or hybrid
Percentage-of-spend is popular because it sounds fair and scales automatically. It also means a client who cuts budget for a quarter cuts your revenue at exactly the moment your workload increases — because a shrinking account needs more intervention, not less. That is the wrong incentive in both directions.
Below roughly $15K in monthly spend, flat fees win outright: the work is dominated by fixed overhead, and percentages produce numbers too small to cover it. Above $25K, percentages start to make sense, because the incremental work genuinely does grow with budget — more campaigns, more creative, more reporting surface.
The structure that survives both cases is a hybrid: a flat base that covers your floor, plus a percentage on spend above a stated threshold. The client sees a predictable number. You keep upside when the account grows and protection when it contracts.
5. When to walk away
The most expensive pricing mistake isn't underpricing — it's accepting an account you should have declined. Three signals, any one of which is enough for us to say no: the client has fired two agencies in the last two years, the conversion tracking cannot be verified before signing, or the person paying is not the person who will evaluate the work.
You will lose a few deals holding that line. You will lose more money not holding it.
Want us to run this math on your book?
Bring three accounts — your best, your worst, and your newest. We'll show you where the margin actually is in thirty minutes.
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