What Is Customer Retention? Formula, Benchmarks & Strategies for Shopify Stores

What is customer retention?

Customer retention is a business’s ability to keep existing customers buying from it over time. It’s measured with the customer retention rate (CRR): the percentage of customers who stay with you over a set period.

For a Shopify store, customer retention shows up as reorders, renewals and returning visits. For a subscription brand, it’s the number of subscribers still active month after month.

Quick answer

Definition: Customer retention = keeping existing customers buying again.
Formula: CRR = ((End customers − New customers) ÷ Start customers) × 100
Why it matters: Keeping a customer costs 5–25× less than winning a new one.
Best levers: Subscriptions, loyalty rewards, personalization, failed-payment recovery, great support, feedback loops.

Why customer retention matters

Growth that relies only on new customers is expensive and fragile. Customer retention is where profit compounds.

Stat	What it means for your store	Source
Acquiring a new customer costs 5–25× more than retaining one	Every customer you keep is budget you don’t spend on ads	Harvard Business Review
A 5% lift in retention can raise profits by 25–95%	Small retention gains have outsized profit impact	Bain & Company
Chance of selling to an existing customer: 60–70% vs 5–20% for a new prospect	Repeat buyers convert far more easily	Marketing Metrics
71% of consumers expect personalized interactions	Generic post-purchase emails leave retention on the table	McKinsey

For subscription businesses, retention is everything:

Every cancellation removes future monthly recurring revenue (MRR), not just one order.
If churn outpaces new sign-ups, revenue shrinks no matter how much you spend on acquisition.
Higher retention raises customer lifetime value (CLV), so you can afford to bid more for new customers.

How to calculate customer retention rate

The customer retention rate formula shows what percentage of the customers you had at the start of a period are still with you at the end.

CRR = \frac{E – N}{S} \times 100

S = customers at the start of the period
E = customers at the end of the period
N = new customers acquired during the period

Subtracting new customers is the key step: it measures who stayed, not who joined.

Worked example

Step	Value
Customers at start of quarter (S)	500
New customers acquired (N)	100
Customers at end of quarter (E)	520
Calculation	((520 − 100) ÷ 500) × 100
Customer retention rate	84%
Churn rate (100% − CRR)	16% (80 customers lost)

Related retention metrics

Metric	Formula	What it tells you
Churn rate	Customers lost ÷ Start customers × 100	The flip side of retention
Repeat purchase rate	Customers with 2+ orders ÷ Total customers × 100	How many buyers come back at all
Customer lifetime value (CLV)	Avg. order value × Purchase frequency × Customer lifespan	Total revenue a customer brings
Purchase frequency	Total orders ÷ Unique customers	How often customers reorder
MRR churn	MRR lost to cancellations ÷ Starting MRR × 100	Revenue impact of churn for subscriptions

Tip: Always use the same period length (monthly, quarterly or yearly) so your numbers are comparable over time.

What is a good customer retention rate?

A good customer retention rate depends on what you sell and how often customers naturally need it. Use this table to see where your category typically sits.

Product category	Typical retention	Why	Best retention lever
Coffee, tea, supplements	High	Customers run out and reorder on a cycle	Subscribe & save
Pet food & supplies	High	Predictable, recurring need	Auto-delivery subscriptions
Beauty & skincare	Medium–high	Routine products, but lots of brand switching	Refills + loyalty points
Apparel & accessories	Medium	Repeat buying is driven by style, not need	Early access, VIP perks
Home goods & decor	Low–medium	Infrequent purchases	Post-purchase cross-sell
Electronics	Low	Long replacement cycles	Accessories, warranties, support

How to benchmark yourself:

Compare against your own past periods first; that’s the most reliable benchmark.
Track retention by cohort (sign-up month or acquisition channel).
For subscriptions, measure monthly retention and churn, not just annual.
Aim for steady quarter-over-quarter improvement rather than a single target number.

6 customer retention strategies that work

These are the most effective ways to improve customer retention for a Shopify store, ranked roughly by impact for consumable and subscription brands.

#	Strategy	Main benefit	Effort	Best for
1	Offer subscriptions	Automates repeat purchases	Low (with an app)	Consumables, refills
2	Reward loyalty	Gives customers a reason to return	Medium	Most stores
3	Personalize post-purchase	Timely, relevant reorders	Medium	Stores with email/SMS
4	Recover failed payments	Stops involuntary churn	Low	Subscription brands
5	Deliver fast support	Turns problems into loyalty	Ongoing	All stores
6	Act on feedback	Fixes the real reasons people leave	Low	All stores

1. Offer subscriptions

Subscriptions remove the need to remember to reorder, so staying is the default.

Add subscribe & save options on product pages (a 10–15% discount is common).
Let customers choose their own delivery frequency.
Give subscribers a self-serve portal to skip, swap, pause or reschedule instead of cancelling.
Easy Subscriptions lets Shopify merchants set all of this up without code.

2. Reward loyalty

A loyalty program gives customers a reason to come back to you instead of a competitor.

Points for purchases, reviews and referrals
Member-only discounts and free-shipping thresholds
Early access to new launches and limited drops
Tiered perks that reward your best customers most

3. Personalize the post-purchase experience

Use purchase history to make every message relevant.

Reorder reminders timed to when the product runs out
Product recommendations based on what they bought
How-to content so customers get value from the product
Thank-you and onboarding emails in the first week after purchase

4. Recover failed payments (dunning)

A large share of subscription churn is involuntary: the customer didn’t mean to leave, their card failed.

Retry failed payments automatically on a smart schedule
Send card-expiry reminders before renewal
Email and SMS with a one-click link to update payment details
Pause rather than cancel while payment is being recovered

5. Deliver fast, helpful support

A well-handled problem can increase loyalty.

Set a response-time target (for example, under 24 hours)
Offer live chat on high-intent pages
Empower agents to issue refunds, replacements or credits quickly
Track repeat issues and fix their root cause

6. Ask for feedback and act on it

Customers stay when they see their input change things.

Short post-purchase surveys (1–3 questions)
Cancellation surveys to learn exactly why subscribers leave
Monitor reviews and reply publicly
Tell customers what you changed because of their feedback

Common customer retention mistakes

Mistake	Why it hurts	How to fix it
Spending everything on acquisition	Creates a “leaky bucket”: you keep refilling, it keeps draining	Set a retention budget and KPI alongside acquisition
Missing early churn signals	Longer order gaps, smaller baskets and skipped deliveries go unnoticed	Set up automated alerts and win-back flows
Treating every customer the same	First-timers, lapsed buyers and VIPs need different messages	Segment by behavior, order history and subscription tier
Going silent after checkout	The first week is when customers are most engaged	Send thank-you, onboarding and usage emails
Ignoring failed payments	Every declined card becomes a lost subscriber	Turn on automated dunning and payment retries
Making cancellation the only option	Customers who need a break leave for good	Offer skip, pause and swap in the subscriber portal

Pro tips to boost customer retention

Track retention by cohort. Compare customers by sign-up month and channel to find your most loyal sources.
Test subscriptions on consumables. Offer a subscription on your top reordered product and compare retention with one-time buyers.
Tie retention to CLV. A few points of retention can noticeably raise lifetime value and how much you can spend to acquire customers.
Run win-back campaigns. A targeted offer to lapsed customers is one of the cheapest ways to recover revenue.
Audit friction quarterly. Review checkout speed, mobile experience and how easy it is to manage a subscription.

Frequently Asked Questions

Customer retention is a business's ability to keep existing customers buying from it over time, instead of losing them to competitors or inactivity.

Use CRR = ((customers at end of period − new customers acquired) ÷ customers at start) × 100. For example, starting with 500 customers, adding 100 and ending with 520 gives an 84% retention rate.

It depends on your category. Consumables like coffee, supplements and pet food retain customers better than one-time purchases like electronics. The best benchmark is steady improvement on your own past rate.

They are opposites. For the same group and period, retention rate + churn rate = 100%. An 84% retention rate means a 16% churn rate.

Keeping a customer costs 5–25 times less than acquiring a new one, and existing customers buy more often, spend more and refer others.

Subscriptions automate repeat purchases, so customers keep receiving products without deciding to reorder each time. Options to skip, pause or swap help them stay subscribed longer.

The most effective are offering subscriptions, running a loyalty program, personalizing post-purchase emails, recovering failed payments, giving fast support and acting on customer feedback.