Every brand that comes to us with a performance marketing brief eventually asks the same question: “What’s a good CAC in our industry?” It’s a reasonable question to ask. It’s also the wrong one to spend time answering.
Industry benchmarks especially for marketing KPIs feel like a shortcut to knowing where you stand. In practice, they tell you almost nothing useful about your own brand, and chasing them quietly reshapes how a business thinks about growth, usually for the worse.
The Flawed Premise of Industry Benchmarks
An industry benchmark assumes something that isn’t true: that your brand is comparable enough to a category average for that average to mean anything. It isn’t. Two brands selling the same category of product can have entirely different price points, funnel lengths, brand awareness levels, audience intent, and unit economics. A CAC that’s healthy for one is unsustainable for the other, even if both get labeled “D2C skincare” or “B2B SaaS” in the same report.
A benchmark also collapses time into a single number. It tells you where the category sat on average, over some window, across brands you’ll never see the internals of. It says nothing about whether your own numbers are improving, flat, or quietly eroding. Two brands can post the identical CAC this quarter, one climbing steadily out of a rough patch, the other sliding down from a much stronger position, and the benchmark makes them look the same. It isn’t built to answer the question that actually matters: are you getting better?
Why Industry Benchmarks Fail as a Strategy?
Treat an industry number as the goal, and the entire marketing function starts optimizing for parity rather than progress. Every planning conversation becomes about closing a gap to a stranger’s average instead of building on your own last quarter. That’s a defensive posture dressed up as a strategy.
It also invites the wrong kind of decision-making. A brand chasing an industry CTR will happily trade quality for volume the moment it helps that one number, even if it drags down conversion rate or LTV in the process. Benchmarks are usually single-metric snapshots; real business health is a system of metrics moving together, and optimizing for one borrowed number at the expense of the rest is how brands win the benchmark and lose the business.
And because the “industry average” is a fiction assembled from brands with different positioning, budgets, and maturity, it moves in ways you can’t explain and can’t control. You can spend a whole quarter chasing a number that shifted for reasons that have nothing to do with your brand.
Leadership is Measured against Yourself, Not against Everyone Else
A challenger brand looks sideways. It measures itself against competitors, against the category, against whatever number the industry has decided is “good,” and treats catching up to that number as success.
A leader looks backward at their own trajectory instead. The question isn’t “how do we compare to the industry” but “are we better than we were last month, last quarter, last year.” That’s a fundamentally different orientation, and it’s the one that actually compounds. A brand that improves its own CAC by 8% every quarter for two years will, almost without exception, end up in a stronger position than one that spent the same two years trying to match an external number that never held still.
This is also a more honest way to run a business. Your own baseline reflects your actual funnel, your actual audience, your actual constraints. Beating it means you genuinely got better at something. Beating an industry average might just mean the industry had a bad quarter.
The Self-Benchmarking Framework
Self-benchmarking isn’t the absence of a number to aim for. It’s a discipline with five steps, run consistently, channel by channel.
- Define your own success metrics: Start from what actually drives your business, not from a generic list of marketing KPIs. A lead-gen business built on high-ticket sales cares about lead quality and sales-qualified conversion far more than raw lead volume. A D2C brand selling a repeat-purchase product cares about LTV and repeat rate as much as first-order CAC. Pick the metrics that reflect how your business actually makes money, not the ones that are easiest to report.
- Establish your own baseline range, not a single number: A single-point target invites gaming and ignores natural variance. A baseline range (say, CAC between two bounds over a rolling period) accounts for seasonality, channel mix shifts, and normal week-to-week noise, while still giving you something concrete to hold performance against.
- Track consistently: A baseline is only useful if it’s measured the same way, on the same cadence, every time. Changing attribution windows, swapping measurement tools mid-quarter, or reporting different metrics to different stakeholders quietly breaks the comparison you’re trying to build.
- Operate to lift your own benchmark: This is the active part. Once the baseline is set, the job of the marketing function is to move it, not just sit inside it. That means testing new creative angles, tightening targeting, improving landing page conversion, and treating every lever as a way to push the range upward (or the cost range downward) over the following cycle.
- Re-baseline as you improve: When a new range holds for a full cycle, it becomes the new floor, not a ceiling to coast at. This is where most brands stop, and it’s the step that actually separates a leader from a brand that improved once and plateaued. The baseline should move as often as the business does.
What this looks like Channel by Channel
The mechanics stay the same across channels; only the metric and the levers change.
- Paid Search: The baseline is usually built around cost per lead or cost per acquisition within a defined Quality Score and conversion-rate band. The lever to lift it is rarely just bidding harder, it’s usually landing page relevance and search-intent match improving the Quality Score that the cost is built on.
- Paid Social: The baseline centers on cost per result and hook rate. Creative fatigue is the main force pushing a social baseline backward, so lifting it is mostly a function of creative refresh cadence rather than budget reallocation.
- Email and CRM: The baseline is built around open rate, click rate, and, more importantly, revenue per send. Segmentation quality and send-time relevance move this baseline far more than subject-line tweaks ever will.
- Organic and SEO: The baseline is slower-moving by nature, built around ranking position and organic conversion rate over a longer rolling window. Content depth and internal linking structure are the levers, and re-baselining here happens on a quarterly, not weekly, cycle.
In every channel, the question stays the same: not “what does the industry consider good,” but “what did we do last cycle, and what would better look like this cycle.”
Two Ways (Case Studies) to Read the Same CAC
One of our D2C clients came to us with a CAC that, by every industry report available, looked entirely acceptable for their category. The temptation, and the instruction we got from a previous agency’s handover notes, was to hold that number steady and call it a win.
We ran the numbers differently. Over the two quarters before we took over, that “acceptable” CAC had actually been drifting upward, masked by an industry average that had drifted upward even faster over the same window. Against the category, the brand looked fine. Against its own baseline from six months earlier, it was quietly losing ground.
We reset the frame around the brand’s own historical range instead of the category number. The baseline we set wasn’t dramatically lower than what the industry considered normal, it was lower than what this brand itself had already proven it could do a few months prior. Creative refresh cadence and landing page work over the following two quarters brought CAC back inside that self-defined range, and the range was tightened again once it held. The industry average, as far as we know, kept drifting the whole time. It was never the number that mattered.
Benchmarking Marketing KPIs as Brand Building
Self-benchmarking isn’t just a measurement technique. It’s a statement about how a brand sees its own growth. A brand that measures itself against the industry is, by definition, agreeing to be defined by the industry. A brand that measures itself against its own last quarter is building something that belongs entirely to itself, one improved baseline at a time.
A retention budget that scales against the industry’s install-cost average misses the point in exactly the same way, the number that should drive that decision is the health of your own active user base, not what a category report says is typical. Self-benchmarking isn’t a performance-marketing footnote. It’s the same principle showing up on every channel and every business model we work with.
At 8 Spades, this is the lens we bring to every performance marketing engagement: not “how do you compare,” but “how do you get better than you already were.” If your team is still reporting against an industry number instead of your own baseline, get in touch and let’s build a benchmark that’s actually yours.