How to Increase Customer Retention

Most businesses spend the majority of their budget trying to win new customers. But acquiring a new customer costs 5 to 25 times more than retaining an existing one, and existing customers spend roughly 67% more on average than new buyers. The math on retention is straightforward. The execution is where most companies fall short.

Customers do not leave because they found a better product. In most cases, they leave because something in their experience felt broken: a support call that didn't go well, a problem that was never properly resolved, or even just slow support ticket resolution. It doesn't take much for customers to leave.

If you're looking to improve customer retention, understanding why customers leave is just as important as knowing what keeps them. This guide covers what customer retention is, how to measure it, and the strategies that actually retain more customers.

What is customer retention?

A high retention rate means customers are coming back, buying again, and staying engaged with your brand. A low retention rate means they are leaving, and more importantly not telling you why.

Customer retention is typically measured as a percentage of customers who remained active over a defined period, excluding any new customers acquired during that time. It is the mirror image of churn: when one goes up, the other goes down.

What makes customer retention worth paying close attention to is not just the revenue from repeat purchases. Retained customers spend more over time, are more likely to try new products, and are significantly more likely to refer others. The top 10% of loyal customers spend three times more per transaction than the rest of your customer base. Retention is not just about keeping customers. It is about growing the value of your current customers.

Why is customer retention important?

The business case for focusing on customer retention is well established, but it is often underweighted in practice. Only 18% of companies prioritise retention over acquisition, despite retention being significantly more cost-effective. Most companies are optimising for the harder, more expensive problem.

Why is customer retention important beyond the cost argument? Because retained customers behave differently from new ones. They buy more frequently, spend more per transaction, and generate more predictable revenue. A 5% increase in customer retention produces a profit increase ranging from 25% to 95%. That range reflects how dramatically retention improvements compound across different business models, but even the lower end significantly outperforms most acquisition campaigns.

There is also a less obvious and more interesting argument for customer retention: the data you get from long-term customers is better. The longer a customer stays, the more you learn what they actually need, which feeds back into product decisions, support improvements, and personalisation in ways that new customer data simply cannot.

How to measure customer retention

How to measure customer retention is relatively straightforward. The standard formula is:

Customer Retention Rate (%) = [(Customers at end of period – New customers acquired) ÷ Customers at start of period] × 100

For example, if you started the quarter with 500 customers, acquired 60 new ones, and ended with 490, your retention rate is:

[(490 – 60) ÷ 500] × 100 = 86%

Beyond the formula, there are a few things worth tracking alongside your retention rate to get a fuller picture:

Churn rate: The percentage of customers who left during the period. Churn and retention always add up to 100%, but tracking churn separately helps you see the rate at which you are losing customers rather than just the rate at which you are keeping them.
Customer lifetime value (CLV): The total revenue a customer is expected to generate over their relationship with your business. A rising CLV alongside a stable retention rate is a strong signal that your retained customers are becoming more valuable over time.
Net Promoter Score (NPS): How likely your customers are to recommend your business to others. NPS does not measure retention directly, but it is one of the earliest signals that retention is about to improve or decline, often before it shows up in your numbers.

What is a good customer retention rate?

A good customer retention rate depends almost entirely on your industry, because retention benchmarks vary significantly across sectors. The average across all industries sits at approximately 75%, but that number is not useful on its own.

B2B SaaS companies lead with around 90% retention, which reflects high switching costs and the recurring value of software relationships. Commercial insurance sits at 86%, business consulting at 85%, and IT services at 83%. At the other end, transactional ecommerce sits at around 38%, where low switching barriers and intense competition make customers highly volatile.

If your retention rate is consistently below industry average, you need to work on your retention. If it is above average, the question shifts to how much further you can push customer retention and what the revenue impact of each additional percentage point would be.

How to increase customer retention

1. Resolve support issues completely on first contact

The fastest way to lose a customer you already have is to make them contact support more than once. A support interaction that feels effortless and resolves an issue completely is one of the strongest retention signals your business can send. A support interaction that requires follow-ups, transfers, or callbacks pushes customers away.

A tool like cobrowsing gives your support agents a direct view of the customer's screen, so they can see and resolve the exact issue rather than working from a verbal description. Your agent can scroll through the customer's page, click on elements, fill in fields, and annotate directly on the screen to guide them through a fix, without the customer needing to download anything or leave the page they are on. Making cobrowsing a great option for service teams in high friction environments.

2. Personalise interactions using the data you already have

Customers who feel understood stay longer and spend more money. 71% of consumers now expect personalized interactions, and 60% say personalisation directly motivates them to purchase again. Most businesses collect enough data to deliver this: purchase history, support interactions, product usage. But that data is often siloed across different systems.

The practical fix is connecting your tools so every customer-facing team, whether support, sales, or account management, works from the same view of each customer. When your support agent already knows a customer's recent activity before the call starts, the interaction feels personal rather than transactional. That difference is what retention is built on.

3. Make the onboarding experience count

The customers most likely to churn early are the ones who never reached their first moment of genuine value with your product. That moment almost always happens, or fails to happen, during onboarding, which is why it is the most impactful stage in the customer lifecycle for retention, and also the one most commonly underinvested.

Effective onboarding means getting customers to a successful outcome quickly, not walking them through every feature. Service calls with integrated session recordings lets your team review exactly where customers are getting stuck during onboarding flows and fix those moments before they become patterns of early churn.

4. Proactively address problems before customers raise them

Reactive support is not enough to drive retention. By the time a customer contacts you with a problem, their experience has already been damaged. Your team needs to intervene before frustration builds: flagging unusual behaviour, checking in after complex interactions, and reaching out when usage patterns suggest a customer is disengaging.

This kind of proactive approach requires visibility into past interactions. Knowing which customers struggled with a particular workflow, and following up before they decide to leave, is far more effective than waiting for a cancellation request to prompt a conversation.

5. Close the loop on negative feedback

Customers who complain and receive a genuine response are often more loyal than customers who never complained at all. The problem is that most negative feedback never reaches the business. Customers simply leave.

Building a structured process for collecting, reviewing, and acting on customer feedback, through post-interaction surveys, NPS follow-ups, and account reviews, closes the gap between what customers experience and what your team knows about. When customers see that their feedback changed something, it signals that the relationship is reciprocal.

6. Invest in the moments just after a purchase

Post-purchase experience is one of the most overlooked drivers of customer retention. A customer who has just bought is primed for loyalty, but that window closes quickly if the follow-up experience disappoints. Clear communication, easy access to support, and proactive guidance through setup or first use all reduce the likelihood of early churn.

7. Build loyalty through consistency, not just rewards

Loyalty programmes can support retention, but they rarely create it on their own. What actually drives customers to stay is the consistent experience of dealing with a business that is easy to work with, resolves problems quickly, and treats them like they matter.

Consistency across every touchpoint, whether support, product updates, billing, or communication, is what separates a business customers stay with from one they tolerate until something better comes along.

How better support drives customer retention

Support is where customer retention is won or lost more often than anywhere else in the customer relationship. A product can be excellent and a price can be competitive, but a single support interaction that goes badly is often enough to undo both.

96% of customers consider customer service a deciding factor in their loyalty to a brand. Treating support as one of the most direct levers for keeping customers means giving your agents the visibility to resolve issues completely, the context to make every interaction feel personal, and the tools to intervene before small problems become reasons to leave.

Cobrowsing by UserView is built to give your team exactly that, a meaningful way to resolve customer service issues. Book a demo to see how your team can deliver the kind of support experience that keeps customers coming back.