Customer acquisition cost (CAC): How to calculate and improve it

Customer acquisition cost is the amount of money a business spends to gain a new customer. Here’s how to calculate this key metric, plus three ways to improve it.

By Court Bishop, Contributing Writer

Published September 23, 2021
Last updated March 17, 2022

Customer acquisition cost (CAC) was on the rise for many companies prior to COVID-19. According to ProfitWell, CAC for businesses increased by approximately 60 percent between 2014 and 2019.

But since the onset of COVID-19, brands have actually been acquiring new customers more cost-effectively. McKinsey & Company reports that the shift to digital sales led to 30 percent higher acquisition efficiency for businesses.

Of course, companies want to continue decreasing the amount of money they spend to acquire new customers, making it critical to measure CAC regularly. We’ll explain this key metric in more detail, exactly how to calculate CAC, and ways to improve it.

What is customer acquisition cost (CAC)?

CAC definition: The amount of money an organization spends on advertising and sales initiatives to convert a lead into a customer.

Customer acquisition cost describes how much money a company spends to gain a new customer. It helps businesses determine the return on investment (ROI) of their customer acquisition efforts. CAC includes a company’s spending on the following:

  • Marketing and advertising: salary for these employees, subscriptions to tools or programs, relevant technology (such as data-collection software or Google Ads), production of any creative elements, traditional and/or digital campaigns, and the like.
  • Sales: salary for these employees, relevant technology (such as lead generation and email management tools), inventory upkeep, travel expenses, gifts for potential new customers, etc.

Aside from informing the budget, CAC can also provide valuable insight into potential inefficiencies within a company’s sales funnel. If a phase of your funnel has bottlenecks—such as too few leads coming in—your company is likely spending more than average to move more leads through to the next stage. Track acquisition costs by funnel stage to gauge what parts of your sales process have room for improvement.

How to calculate customer acquisition cost (CAC)

The cost of acquiring new customers remains an important sales metric for any company, from scrappy startups to colossal corporations.

The simplest way to calculate customer acquisition cost is by adding up all marketing and sales expenses, then dividing that result by the number of new customers gained during a specific period of time.

Customer acquisition cost formula

Customer acquisition cost

Say Company X spent $150K on marketing efforts and $100K on sales initiatives over the last quarter. During this time, Company X acquired 300 new paying customers. That means Company X’s CAC for that quarter is $833.

[(150,000 + 100,000)] / 300 = 833

The CAC formula helps you gauge whether your company’s money is being well spent, making it one of the essential formulas for sales teams to know.

What is a good CAC?

As with most things in life, a “good” customer acquisition cost is relative. To determine whether your CAC is too high or too low, you need to know the amount of revenue coming in from your existing customers.

For this reason, the LTV:CAC ratio is a better measure of your business’ health than CAC alone. Customer lifetime value (LTV) refers to the amount of money the average customer will contribute to a company over their entire lifecycle, so the LTV:CAC ratio captures expected revenue.

The LTV:CAC ratio is a better measure of your business’ health than CAC alone.

To calculate customer LTV, multiply your company’s annual revenue by the average customer lifespan (this gives you the revenue earned from one customer). Then, subtract the initial cost of acquiring that customer.

Lifetime value formula

Lifetime value (LTV)

Say Company Y generates $10K annually, the average customer lifecycle is 10 years, and the CAC is $5K per customer. This means that Company Y’s customer LTV is $95K.

(10,000 x 10)- 5,000) = 95,000

While there isn’t a “right” LTV:CAC ratio, there is a mostly agreed upon sweet spot—the LTV:CAC ratio should be at least 3:1. This means that, ideally, you spend approximately 33 percent of the average LTV on acquiring new customers.

Unlock a measurable sales pipeline

This free guide examines three vital steps to establish a measurable sales pipeline that drives repeatable, predictable sales growth.

How to improve customer acquisition cost

To improve CAC, you must listen to your target buyer. Pay attention to how leads are engaging with you, and implement feedback from existing customers so you’re better equipped to attract more leads. At the same time, monitor your marketing campaign performance to figure out which aspects of your promotions are working.

Align your sales strategy with your customers’ buying preferences

Consumers’ buying behaviors have become increasingly digital since COVID-19, and businesses are responding accordingly. According to a McKinsey Global Survey, executives have “accelerated the digitization of their customer and supply-chain interactions by three to four years.” Additionally, the speed at which businesses are creating digital or digitally enhanced offerings has increased by seven years, on average.

To engage potential customers, companies need to adopt a digital-first mindset—and fast.

  • Give decision-makers online sales autonomy. Recent McKinsey research shows that more than three-quarters of buyers and sellers say they “now prefer digital self-serve and remote human engagement” over in-person sales.
  • Don’t shy away from selling big-ticket products and services on the Internet. Of the decision-makers surveyed, 70 percent said they were willing to make new, fully automated remote purchases of $50K or more. Twenty-seven percent said they would spend more than $500K.
  • Embrace digital communication. In 2020, 64 percent of customers used a new support channel—such as video, live chat, or messaging—and 73 percent plan to continue using it. And between April and October 2020, total revenue generated by video-related interactions increased by 69 percent.

By meeting leads where they are and providing them with the digital experiences they expect, you can improve your lead conversion rate and, as a result, lower your CAC.

Keep your ear to the ground

CAC depends on your marketing and sales efforts, but it’s also tied to the quality of your product or service. When your sales team pitches to leads, they’re more likely to see conversions if they’re promoting a product or service that meets the potential customer’s needs and solves their problems.

Attract more leads by sharing valuable feedback from current customers with your engineering and product development teams.

  • Listen like you mean it. When customers provide input, it’s important to let them know you’re listening. So, if you hear customer feedback in a sales demo or call, be sure to pass it along to the teams in charge of building your product or improving your service. Feedback can help teams identify areas for improvement, spot emerging customer needs, and incorporate new offerings into longer-term business roadmaps.
  • Encourage support agents to share feedback with product teams, too. Strengthen your company’s customer-driven culture by encouraging your support team to send valuable feedback—from survey responses to social media messages—to the product team. From there, product team members can determine what additional features would create more value for users.

By actively listening to your leads and passing along their feedback to the appropriate team, you’re building trust that pays off in the long run.

Analyze available data to maximize ad spend

During this time of economic uncertainty, many businesses have minimized marketing expenses. But even with less to spend, you can find success by monitoring performance on advertising platforms to determine which ones offer the highest ROI.

  • Track acquisition costs per marketing channel using the CAC calculation. Instead of dividing the total sales and marketing spend by new conversions, isolate the cost spent on a specific channel—like pay-per-click. Divide that cost by conversions earned within a particular time frame.
  • Watch your LTV:CAC ratio. If you’re spending efficiently, your ratio should remain close to 3:1. If it isn’t close to this figure, it’s time to troubleshoot and optimize. You might create new engagement opportunities for customers, provide loyalty discounts, develop a subscription model, or start a number of other initiatives.

If businesses don’t do their homework, they can end up hemorrhaging money in dead-end marketing channels—significantly increasing the cost of acquiring new customers. Let your data lead the way, and then optimize your campaigns accordingly.

Acquire customers more easily with a CRM

The tactics for reducing customer acquisition cost all fall under the umbrella of a larger strategy: creating a high-quality sales process. A customer relationship management (CRM) system can help you build a seamless sales process and better understand your audience’s needs.

With an integrated CRM like Zendesk Sell, you can monitor leads and their movements through the sales funnel, automate emails and data capture, discover new opportunities, and track performance. You’ll be better equipped to increase sales pipeline productivity and improve customer satisfaction rates overall.

Unlock a measurable sales pipeline

This free guide examines three vital steps to establish a measurable sales pipeline that drives repeatable, predictable sales growth.

Unlock a measurable sales pipeline

This free guide examines three vital steps to establish a measurable sales pipeline that drives repeatable, predictable sales growth.

Read now