Customer churn

What is the customer churn rate?

Customer churn is the loss of customers or subscribers over a given period of time. It is one of the most important things to track in ecommerce and subscription businesses because it shows how well you are retaining your customers and how predictable your future revenue is. Customer churn is essentially the inverse of customer retention.

The customer churn rate is the metric used to measure it: the percentage of existing customers who stop buying from or subscribing to your business in a defined window, usually a month or a year.

Churn happens when a customer ends the relationship with your brand by canceling a subscription, not returning for a repeat purchase, or going inactive long enough to be considered lost. There are two main types:

• Voluntary churn is when a customer actively decides to leave: they cancel a subscription, stop buying, or switch to a competitor.
• Involuntary churn happens unintentionally, usually because of a failed payment, an expired credit card, or another billing issue.

How to calculate customer churn?

Use this basic formula::

Churn Rate = (Customers Lost During a Period ÷ Total Customers at Start of Period) × 100

For example, if you started with 1,000 subscribers and lost 50 in a month, your churn rate is 5%.

How to reduce Customer Churn?

Here are some actionable tips to reduce customer churn:

• Help new customers get started quickly with guides, walkthroughs, or personal support.
• Monitor inactivity and reach out with helpful tips or offers before they disengage completely.
• Let customers pause, skip, or downgrade instead of canceling outright.
• Collect feedback regularly and visibly act on it so customers see the loop close.
• Surprise long-time users with exclusive perks, discounts, or early access to new products.
• Use customer data to tailor product suggestions, emails, and offers based on their preferences.
• Stay in touch with helpful content, not just promos. Keep them engaged and valued over time.
• Recover failed payments quickly with smart retries and dunning so involuntary churn does not silently eat into your retained base.

Example of customer churn

If a customer cancels their monthly subscription to a snack box after two months and does not return within a reasonable timeframe, that counts as customer churn. The same applies if a longer-term subscriber’s renewal payment fails and is never recovered: one is voluntary, the other involuntary, and reducing each requires different strategies. In a recurring-revenue context, this same phenomenon is often called subscriber churn.

Driftcharge Tip

Track churn regularly and dig into the reasons customers leave, not just the headline number. Even a small monthly reduction compounds into a meaningfully higher lifetime value across a year, which is what makes churn one of the highest-leverage metrics a subscription brand can work on.

Ganesh Pawar

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Ganesh Pawar is the founder of Driftcharge, a subscription management app designed to help Shopify merchants streamline and scale their subscription businesses. With a deep focus on solving real-world pain points—like legacy account page support, flexible subscription options, and advanced analytics—Ganesh is passionate about building tools that drive growth and retention.