Every brand scaling past 7 figures asks the same question: what should I actually be paying for growth support? The agency world makes this harder than it needs to be. Opaque pricing, hidden fees, and models that reward the agency for spending your money rather than growing your profit.
Here's what the landscape actually looks like and how to evaluate what you're getting for what you're paying.
Monthly retainer: A flat fee regardless of ad spend or performance. Simple and predictable. Works well when the scope is clear. Breaks down when the agency has no incentive to push for better results.
Percentage of ad spend: The agency takes 10-20% of your media budget. Aligns their revenue with your spending, but not with your profitability. The more you spend, the more they earn, whether or not that spend is profitable.
Performance-based: Fees tied to results like revenue growth or ROAS targets. Sounds ideal, but watch the fine print. Performance fees based on platform-reported ROAS can incentivize inflated numbers rather than real profit.
Hybrid: A base retainer plus performance bonuses. Gives the agency a floor while tying upside to results. Most sophisticated agencies use some version of this.
The pricing model matters less than what metric the agency optimizes for. If they're optimizing for ROAS instead of contribution margin, the model is broken regardless of structure.
Sub-7-figure brands: Most full-service agencies won't take you at this stage. The economics don't work for either side. This is where PE Lite fills the gap: $1,500 onboarding + $500/month for Statlas integration, a custom 12-month forecast, monthly PE guidance, and weekly cohort Q&A with Joy Sharma.
7-figure brands ($1M-$10M): Expect $5,000 to $15,000/month for a competent agency. At this stage you need someone who can build your forecast, manage media, and plan creative. A Prophit Engineer delivers all three.
8-figure brands ($10M-$100M): $15,000 to $50,000/month depending on channel complexity and service scope. The key question here isn't cost but capacity: can the agency deliver daily operating clarity across all your channels?
9-figure brands: Custom engagements. At this scale, you're paying for enterprise-level infrastructure, dedicated teams, and integration with your internal operations.
Forget ROAS as the benchmark. The only question that matters: is your contribution margin growing month over month at or above target?
A good agency should be able to show you:
If your agency can't produce these numbers, you're paying for activity, not outcomes.
Long-term contracts with no performance clauses. If they need 12 months locked in to prove value, something is off.
"Discovery" phases that last months. A good system should be operational within weeks, not quarters.
Reporting focused on vanity metrics. If the monthly report leads with impressions, clicks, and CTR instead of contribution margin and forecast accuracy, the priorities are wrong.
No incrementality measurement. If the agency can't tell you the true incremental impact of each channel, their budget allocation is guesswork.
The best agency relationships are ones where the agency earns their fee many times over in contribution margin growth. If you can't prove that math, something needs to change.
CTC's Prophit Engine pricing includes outcome-based components tied to your actual business results. One Prophit Engineer manages your forecast, media, and creative strategy. The technology (Statlas, data models, AI tools) is included.
For brands under 7 figures, PE Lite provides the same forecasting foundation at a fraction of the cost: $1,500 onboarding, $500/month, month-to-month with no contract.
The goal is simple: every dollar you pay should generate measurably more in contribution margin. If it doesn't, the model isn't working.
Whether you're evaluating your current agency or exploring what's possible, we'll give you a straight answer on what it takes to scale your brand profitably.
Common Thread Collective is the leading source of strategy and insight serving DTC ecommerce businesses. From agency services to educational resources for eccomerce leaders and marketers, CTC is committed to helping you do your job better.
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