How to Use & Reduce Customer Acquisition Cost (CAC)

No Comments

Customer acquisition value (CAC) is the common sum of money you spend to accumulate a single buyer.

You calculate CAC by dividing buyer acquisition bills by the variety of acquired clients. So should you acquired ten new clients from $1,000 advertising and marketing and gross sales spend over a sure interval, the components could be: CAC = 1000/10 = $100.

It’s an vital advertising and marketing metric that’s particularly helpful once you relate it to your buyer lifetime worth (also referred to as LTV or CLV). But as with most issues in information analytics, there’s a couple of pitfalls try to be conscious of.

In this text, you’ll study:

CAC is an averaged metric. It doesn’t consider how various in worth your buyer segments are. That’s vital to bear in mind as a result of try to be prepared to spend extra to accumulate probably the most precious clients.

That mentioned, there are two methods to make use of buyer acquisition value correctly.

1. Use CAC in relation to LTV

CAC is a superb advertising and marketing efficiency indicator once you measure it along with LTV. That’s as a result of LTV is yet one more averaged “money metric.”

The trade consensus on a perfect LTV:CAC ratio for SaaS companies appears to be between 3:1 and 4:1. So in case your LTV is $350 and your CAC is $100, you’re proper in the course of these ratios.

But as a result of enterprise fashions differ, you need to attempt to run the numbers your self to see how your different enterprise prices and margins match into such a ratio. The 3:1 to 4:1 vary appears moderately arbitrary as I didn’t discover any information or case research to again this up.

So, as an instance how enterprise prices may have an effect on issues, I created a couple of hypothetical eventualities:


*Other month-to-month prices embrace mounted enterprise bills apart from CAC like employees and infrastructure. By together with these, you may get internet LTV and the breakpoint in months once you cowl CAC and begin making a revenue.

Judging by the numbers alone, all of those enterprise fashions appear to make sense regardless that the LTV:CAC ratios fall exterior of the three:1 to 4:1 benchmark for 2 of them. However, no matter these numbers, we have to dive into advertising and marketing spend effectiveness to make any rational choices primarily based on CAC.

Why? Because lowering your CAC and being simpler in advertising and marketing don’t essentially go hand-in-hand.

If CAC is just too low, you’re limiting your publicity and under-spending in your advertising and marketing actions. That may look good on a paper within the short-term, however you’d be lacking out on substantial progress alternatives within the lengthy run.

CAC also can develop a lot sooner when it comes to proportion than your LTV when you stay extra worthwhile. $10 CAC to $100 LTV is technically worse than $70 CAC to $170 LTV. The distinction to cowl your different prices and margins is $90 in comparison with $100 within the second state of affairs.

In conclusion, reducing your CAC shouldn’t at all times be your goal. You have to take your LTV, buyer base progress, and total advertising and marketing effectiveness under consideration when you concentrate on adjusting your CAC.

2. Use CAC in isolation for efficiency advertisements channels

As tempting as it could be, don’t attempt to phase your CAC per all of your advertising and marketing channels. It solely works on your efficiency channels like PPC.

There are two causes for this. I already talked concerning the first one, so right here’s the second:

CAC locks you in for short-term decision-making should you hyperlink it to separate advertising and marketing channels. For instance, measuring CAC for show campaigns doesn’t make sense. That’s as a result of these advertisements sometimes seem early within the buyer journey when most individuals seeing it aren’t prepared to purchase your product or aren’t even conscious of it.

On the opposite hand, in terms of the efficiency channels, Google Ads even has a CAC equal built-in. It’s known as Cost Per Conversion:

We can take this channel-specific value per conversion and use it to optimize the efficiency of that channel.

But you may be pondering that it doesn’t replicate CAC in its entirety. True, it solely covers the price of the final step within the buyer journey. But that’s the perfect we are able to do right here as you may’t attribute different channels’ prices to this.

Attribution is assigning credit score to advertising and marketing channels that contributed to the conversion. Imagine a soccer participant scoring a aim after getting a go from three different gamers and another teammate cleared the way in which. All of them helped to attain the aim. But most companies can’t make it work like this in advertising and marketing.

Default Google Analytics reviews work with a flawed “last-non direct click” attribution mannequin. That’s like giving 100% credit score to the participant who scored the aim. This participant might be an analogy of efficiency advertising and marketing channels as they typically take the complete credit score. I’ll speak a bit extra about attribution within the CAC issues part.

Bottom line: should you attempt to account for CAC per your entire channels, you’ll run into attribution issues, and also you wouldn’t account for different extra brand-focused channels.

I hope it’s turning into clear that you need to at all times attempt for the very best effectiveness, which doesn’t essentially imply lowering your CAC. But there’s little doubt that you need to steadiness your paid promoting with cheaper and sometimes extra sustainable advertising and marketing channels and techniques.

Here are a couple of methods to inherently scale back your CAC:

With website positioning and content material advertising and marketing

Organic search is the principle site visitors and conversion driver for a lot of companies, together with ours:

The great thing about website positioning is that it’s an acceptable channel for all advertising and marketing funnel phases—from consciousness to retention. People search on Google all of the time.

So not solely is website positioning in a position to develop your small business by itself, but it surely additionally massively helps your different channels—like paid search advertisements. That’s since you often bid on key phrases nearer to the conversion stage, however a stable content material advertising and marketing technique contains content material all through the entire buyer journey.

In different phrases, the mixture of nice website positioning and PPC ensures that your model is current all through the entire buyer journey. People could be much less prone to convert in the event that they heard about you solely after they’re prepared for the acquisition.

For instance, our article “What is HTTPS? Everything You Need to Know” isn’t targeted on a subject folks often seek for after they’re prepared to enroll in an website positioning toolset. But it’s a related “top-of-the-funnel” content material as a result of a number of the searchers have web sites and may wish to deal with website positioning sooner or later.

Promoting such an article by way of search advertisements could be a questionable expense at finest.

But because of website positioning, this text will get nearly 30 thousand clicks from natural search every month. That would value us over $12,000 if we have been to pay for the site visitors in Google Ads:

And that doesn’t even consider that you just wouldn’t be capable of get so many clicks from Google Ads anyway. That’s as a result of most individuals skip the advertisements and click on on natural search outcomes solely.

Of course, for key phrases nearer to the conversion stage, you typically need your web site to seem in each paid and natural search outcomes. Ranking excessive in natural search outcomes for aggressive key phrases can drive “free” site visitors that would in any other case value tons of of hundreds of {dollars} from Google Ads:

With Conversion Rate Optimization (CRO)

CRO is the method of adjusting your web site or app to transform the next proportion of holiday makers.

If you don’t optimize your web site or app for conversions, it’s extremely inefficient—even when it attracts tons of holiday makers. CRO is arguably one of the crucial environment friendly methods to make you more cash and decrease your acquisition prices.

Let’s say that you just drive 100,000 customers to your web site every month, 5% join your free trial, from which 15% convert to your $100/month subscription. Your month-to-month advertising and marketing spend is $100,000.

Here’s how rising your conversion charges affect income and CAC on this simplified case:

If you improve your conversion charges by 30%, your CAC drops by 41%, and your income will increase by 69%. And you didn’t do something to get extra folks to your web site; you simply labored with what you already had.

CRO is an entire advertising and marketing discipline that’s fairly advanced. You have to be versed in UX, copywriting, behavioral economics, person testing, analytics, and statistics.

You can attempt to study CRO your self because it’s helpful throughout advertising and marketing. But investing in a CRO specialist is probably going one of many quickest and handiest returns on advertising and marketing spend that you would be able to do.


What you see in Google Analytics default reviews underneath aim or e‑commerce conversion charges relies on the variety of periods, not customers. Take that under consideration once you take a look at user-level conversions like signups or funds. You can create a custom conversion rate metric primarily based on customers.

Create a stable steadiness between efficiency advertising and marketing and model constructing

While you may’t actually attribute brand-building actions to conversions, it performs an important function in changing guests into clients. But that doesn’t occur in a single day.

In reality, should you’re behind with model constructing, it should truly improve your CAC within the short-term (~1 12 months) as a result of these actions don’t have a direct impact in your gross sales. But it should repay very effectively in the long term, together with a decrease CAC.

As a basic rule of thumb, the best steadiness between advertising and marketing spend on gross sales uplift and model constructing is roughly 40:60. It’s one of the crucial vital advertising and marketing ideas to maintain in thoughts.

There’s quite a lot of research on this. The key takeaway is that model constructing is proven to be the first driver of long-term progress and success.

What are the issues with CAC?

I already talked about that CAC is an averaged metric with attribution issues. Let me broaden on that earlier than diving into two different extra minor points.

Attribution issues with getting extra granular information

The most helpful segmentation you can do with CAC could be along with your buyer segments. For instance, should you take a look at our pricing mannequin, we’re prepared to spend many instances extra our common CAC on buying clients for the Agency plan:

But it’s near not possible to get any dependable information to know that you just spent $X on phase A or $Y on phase B, which might be wanted for this calculation. Most of your advertising and marketing channels goal a number of segments.

There are attainable options for creating extra dependable attribution fashions, however that often requires tons of knowledge and sources to create a customized information ecosystem. And even this may’t remedy attribution issues some B2B companies focusing on enterprise segments face.

For that purpose, I’d counsel most individuals stick with easy CAC formulation.

Taking your small business cycle under consideration

It’s intuitive to take your month-to-month advertising and marketing and gross sales spend and divide that by the variety of new clients you bought that month. I used that too within the examples right here. But this may solely work in case your spend is by some means fixed month over month.

The downside lies in your small business cycle. If you contemplate new customers in March, then a good portion of them transformed because of your advertising and marketing actions in February and even earlier.

Of course, it’s not possible to trace every thing again, however you need to know what number of days on common it takes your guests to transform from their first go to. If you’ve got a 14-day trial, then the common enterprise cycle will possible be between 2–4 weeks. Count with months for enterprise clients.

So, should you needed to calculate the price of clients acquired in March and your avg. enterprise cycle is 4 weeks, you need to use your February advertising and marketing spend within the components as an alternative.

It’s extra helpful for established corporations

If barely anybody in your market is aware of about you, it received’t be simple to maintain CAC inside any affordable vary. Getting your first clients is a problem.

For this purpose, I’d suggest you begin utilizing CAC when you have already got not less than one advertising and marketing channel that persistently drives new clients.

Final ideas

Like all advertising and marketing metrics, you shouldn’t get obsessive about CAC. It’s an vital metric, however you need to already know why it won’t be probably the most appropriate advertising and marketing KPI. Remember the pitfalls and all the opposite elements of it once you analyze CAC.

Do you’ve got every other CAC insights? Do you wish to ask something relating to this metric? Ping me on Twitter.

About us and this blog

We are a digital marketing company with a focus on helping our customers achieve great results across several key areas.

Request a free quote

We offer professional SEO services that help websites increase their organic search score drastically in order to compete for the highest rankings even when it comes to highly competitive keywords.

Subscribe to our newsletter!

More from our blog

See all posts

Leave a Comment