Ask a DTC founder about their margins and you’ll get one of two answers: their gross margin (usually 60–70%) or their net margin (usually uncomfortably thin). Neither number tells you what you actually need to know—whether each order generates enough profit to cover acquisition costs and fund growth.
That number is contribution margin. It’s the single most important metric for determining whether a DTC brand qualifies for growth capital, and most founders either don’t calculate it or confuse it with gross margin.
Three margins, three different questions
DTC brands deal with three types of margin, and each answers a fundamentally different question. Confusing them leads to bad decisions about pricing, ad spend, and funding.
| Margin Type | What It Includes | What It Answers | Typical DTC Range |
|---|---|---|---|
| Gross Margin | Revenue − COGS | Can I make money selling this product? | 60–75% |
| Contribution Margin | Revenue − COGS − all variable costs | Does each order generate profit after all per-order costs? | 35–55% |
| Net Margin | Revenue − all costs (fixed + variable) | Is the overall business profitable? | 5–15% |
Gross margin only subtracts the cost of the product itself—raw materials, manufacturing, packaging. It tells you whether your product pricing makes sense, but it ignores everything else that happens between a customer clicking “buy” and the money landing in your account.
Net margin subtracts everything—fixed costs like rent, salaries, software, and variable costs alike. It tells you whether the business as a whole is profitable, but it’s useless for evaluating individual orders or campaigns because it bakes in costs that don’t scale with volume.
Contribution margin is the sweet spot. It captures every cost that varies with each order—COGS, shipping, payment processing, returns—without including fixed overhead. It tells you the real profit generated by each additional sale. And that’s exactly what determines whether your ad spend can pay for itself.
The contribution margin formula
The key difference from gross margin is those variable costs that founders love to ignore: shipping, payment processing fees, returns, and per-order fulfillment costs. On any single order these feel small. Across thousands of orders they eat 15–25 points of margin.
A step-by-step example: DTC apparel
Let’s walk through a real contribution margin calculation for a DTC apparel brand selling premium basics at a $75 AOV. This is the kind of math we review when evaluating brands for growth capital.
That 20-point gap between gross margin and contribution margin is where most DTC brands get tripped up. They make decisions about ad spend, pricing, and growth capital based on the 75% number. But the 55.6% number is what actually determines whether each new customer generates enough profit to cover their acquisition cost.
Why contribution margin > 50% is the threshold
When evaluating brands for revenue-based financing, contribution margin is the first filter. Here’s why 50% is the critical benchmark:
At 50% contribution margin, a $75 AOV generates $37.50 in per-order profit. If your CAC is $30, you’re profitable on the first order with $7.50 to spare. That’s a healthy buffer that makes your payback period essentially the time between ad click and order delivery.
Below 50%, the math starts to strain. At 40% contribution margin, the same $75 AOV only generates $30 in per-order profit. A $30 CAC now barely breaks even—any increase in ad costs, any spike in returns, and you’re underwater on the first order. You’d need repeat purchases to pay back CAC, which extends your payback period from days to months.
| Contribution Margin | Per-Order Profit ($75 AOV) | Max Affordable CAC | Funding Eligibility |
|---|---|---|---|
| 60%+ | $45.00 | $40–$45 | Strong candidate |
| 50–60% | $37.50–$45.00 | $30–$40 | Qualified |
| 40–50% | $30.00–$37.50 | $25–$30 | Marginal — depends on CAC |
| Below 40% | <$30.00 | <$25 | Fix margins first |
The threshold isn’t arbitrary. It’s the point below which most DTC brands can’t sustain first-order profitability at realistic customer acquisition costs. And first-order profitability is what makes growth capital work—you borrow against tomorrow’s revenue, and that revenue needs to be real profit, not a number that only works on a spreadsheet.
The five places where margin disappears
If your contribution margin is below 50%, one or more of these five areas is eating more than it should:
- Free shipping on low-AOV orders. Free shipping on a $75 order costs you 8–9% of revenue. On a $35 order, it’s 18–20%. If your AOV is below $60, free shipping may be destroying your contribution margin. Consider a threshold (“Free shipping on orders over $65”) or build shipping into the product price.
- High return rates. Every return costs you the return shipping, the labor to process it, and often the full product value if it can’t be resold. Apparel brands above 20% return rates lose 5–8 points of margin to returns alone. Better sizing guides, fit quizzes, and product photography can reduce this significantly.
- Underpriced products. Many DTC brands price based on competitor research rather than margin analysis. If your COGS is 35% or higher, your gross margin is already thin before variable costs even enter the picture. Either reduce COGS through supplier negotiation or raise prices—a 10% price increase on a $75 product adds $7.50 to every order’s contribution margin.
- Expensive fulfillment. 3PL fees vary dramatically. Some charge $3–$5 per order, others charge $8–$12 with add-ons for kitting, inserts, and branded packaging. Audit your per-order fulfillment cost quarterly. It’s one of the easiest costs to negotiate down.
- Excessive discounting. A 20% discount on a $75 order doesn’t cost you $15. It costs you $15 off the top line while every variable cost stays the same. At 75% gross margin and 55% contribution margin, a 20% discount drops your contribution margin to ~44%. Discount strategically, not habitually.
How to improve your contribution margin
The fastest path to a higher contribution margin isn’t always cutting costs. Often it’s increasing AOV. Every dollar of additional revenue on the same order drops straight to contribution margin because your variable costs per order are mostly fixed—shipping a $75 order costs the same as shipping a $95 order.
- Bundle products. A two-pack at $120 instead of two singles at $75 each reduces per-order shipping, fulfillment, and processing costs while increasing revenue.
- Add upsells at checkout. A $12 add-on product with 80% gross margin adds ~$8 to contribution profit with near-zero incremental variable cost.
- Raise prices and test. Most DTC brands underprice. A 10–15% price increase with no change in conversion rate is the single biggest contribution margin lever available.
- Reduce return rates. Better product pages, sizing tools, and post-purchase communication can cut return rates by 30–50%, which recovers 2–5 points of contribution margin.
Calculate your real contribution margin.
Our calculator factors in COGS, shipping, processing, and returns to show your true per-order profit. → Try the CohortCredit Calculator
Why this number determines your funding
When CohortCredit evaluates a brand, contribution margin is the foundation. It feeds directly into payback period calculations, determines how much capital a brand can efficiently deploy, and reveals whether the unit economics support revenue-based repayment.
A brand with a 60% contribution margin and $35 CAC has a payback period of roughly 7 days. That’s a brand that can cycle growth capital multiple times per month and scale aggressively. A brand with a 38% contribution margin and the same $35 CAC needs two orders just to break even on acquisition—a payback period of 45+ days that makes growth capital far less efficient.
The contribution margin doesn’t just determine whether you qualify for funding. It determines how much value that funding creates. Higher contribution margins mean faster payback, more capital cycles per year, and more compounding growth from each dollar deployed.
Know your number. Not your gross margin—your contribution margin. It’s the difference between a brand that scales with confidence and one that grows into a cash flow crisis.