One goal pursued by many entrepreneurs is acquiring new customers. However, as is well known, the cost of customer acquisition is many times higher than the cost of retaining existing customers. Especially in the age of CRM systems and similar tools, it’s possible to flexibly calculate metrics such as Customer Lifetime Value (CLV), Customer Acquisition Cost (CAC), and other key figures at any time. But this raises the question: Should you still be willing to accept these high acquisition costs?
So, which differences are relevant to you? We’ve summarized them briefly and described them in more detail—including a table that provides an overview of the most important differences.
Customer Acquisition Costs: Revenues and Expenses
Investments in customer loyalty lead to more revenue in the long run, as loyal customers spend more money. They accept higher prices because they trust you. However, the demands on quality and services are also higher, as they already have certain expectations of your company.
The expenses for marketing measures are comparatively lower than with new customers, as personalization and targeted communication can keep the wastage as low as possible. An investment in customer acquisition leads to short-term successes and revenue increases. If new customers do not become regular customers, the Customer-Lifetime-Value suffers from the high expenses for acquiring new customers.
Customer Acquisition Costs: Communication
Customers who have already established a relationship with you want to be addressed in a targeted way and have their preferences taken into account. They either explicitly share this information with your company (so-called „zero-party data“) or it can be inferred from their past purchasing behavior, such as purchase frequency or favorite product categories and items.
This targeted, personalized communication is initially not possible with new customers. This leads to the fact that marketing measures are not equally relevant for all potential new customers.
Even if certain demographic data is available, such as age, it is usually not possible to implement reliable communication measures. To adjust these as well as possible to the target group, high market research costs are necessary.
Customer Acquisition Costs: Recommendations
Satisfied, loyal customers become brand ambassadors. Since purchasing decisions are often not made alone—and the opinions of one’s personal circle are taken into account—recommendations from regular customers have a significant impact on your customer acquisition. And all at no cost. Strong customer loyalty therefore also reduces the overall cost of acquiring new customers.
Customer Acquisition Costs: Returns and Feedback
If a new customer has a shopping experience that doesn’t meet their expectations, in many cases they won’t shop with you again. Since this is the only experience they’ve had with your business, they’ll assume it will happen again in the future. This factor carries particularly significant weight when it comes to services. Regular customers who have been satisfied with your services on multiple occasions and keep coming back to you are willing to overlook the occasional mistake. That’s what makes for a good customer relationship.
They provide you with valuable feedback and suggestions for improvement because their relationship with your company is important to them. That’s why it’s especially important to take customer feedback seriously. Appreciate the fact that customers take the time to bring an issue to your attention and provide you with feedback.
These customers clearly care about you improving. New customers will usually not do this, but will go to a competitor next time.
| Dimension | New Customer Acquisition | Existing Customers (Retention) |
|---|---|---|
| Marketing Costs | high, with some wastage | minimal, targeted, and personalized |
| Communication | hardly customizable | Targeted, tailored to preferences |
| Recommendations | virtually nonexistent | Highly recommended, free of charge |
| Fault tolerance | minor; a mistake can be off-putting | High; trust forgives mistakes |
| Impact on revenue | in the short term | Stable in the long term, larger shopping baskets |
The Importance of Customer Loyalty: Why are regular customers so valuable?
Regular customers play a crucial role in ensuring long-term, stable revenue, as they can be targeted with specific promotions and their preferences and needs are well known. Since loyal customers typically prioritize a company’s quality and trustworthiness, they are not necessarily looking for the lowest price.
Advertising costs are also generally lower: Since there’s no need for the costly acquisition of new customers among repeat customers, „Customer Acquisition Costs“ (CAC for short) are lower than for new customers. No leads, no CRM, no targeted management of the sales process: Instead, it’s often a matter of simple follow-up sales that carry a high probability of closing.
The importance of word-of-mouth recommendations should not be underestimated. These no longer take place exclusively during a chat over coffee with a neighbor, but in most cases happen digitally. Therefore, every company should also address the topic of digital customer loyalty take a closer look at.
Regular customers—that is, customers who have been satisfied over the long term—recommend your product to others and thus actively help attract new customers. In addition, loyal customers are more forgiving when mistakes are made and provide the company with valuable suggestions for improvement.
Customer loyalty in 2026 will work if it’s easily accessible, remains personal, and offers immediate rewards. Only those who support their customers in their daily lives and offer genuine added value can build a close relationship. Because that’s exactly what makes the difference.
Franz Tretter, CEO and founder of hello again
Conclusion: Successful Customer Acquisition as a Prerequisite for Customer Loyalty
Both retaining existing customers and acquiring new ones are important marketing tools for a company to remain competitive. It’s clear that you first need customers in order to retain them. Every company must therefore initially bear the high costs of customer acquisition to build a customer base with a well-thought-out Customer loyalty program to build.
So should companies with an existing customer base completely stop trying to attract new customers? No, it’s important for every company to continually attract new customers. But if you focus on Customer loyalty depends on, then this often happens all on its own through word of mouth.
FAQ: Frequently Asked Questions About Customer Acquisition Costs and Customer Retention
Why is the cost of acquiring new customers higher than the cost of retaining existing customers?
New customers aren't yet familiar with your company and are unlikely to respond to personalized messages, so you'll need marketing efforts with a broader reach—and therefore higher costs. Existing customers, on the other hand, can be reached in a targeted manner with less wasted reach.
What does Customer Acquisition Cost (CAC) mean?
CAC refers to the average cost required to acquire a new customer—for example, through advertising, sales, and marketing. With repeat customers, these costs are largely eliminated, since there is no need for time-consuming new customer acquisition.
What role do referrals play in customer acquisition?
Today, referrals from satisfied regular customers usually take place digitally—for example, through reviews or social media—and completely replace some of the traditional, costly methods of acquiring new customers, all at no cost.
Why are regular customers more likely to forgive mistakes than new customers?
Regular customers have already had several positive experiences with your business and trust that a single mistake will remain an exception. New customers, on the other hand, have only this one experience and often go straight to the competition if they encounter problems with their first purchase.
Should companies completely stop trying to attract new customers?
No. Every business needs a steady stream of new customers to grow and offset customer churn. However, businesses that consistently focus on customer retention benefit from lower-cost repeat purchases and free referrals from existing customers.
