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4 June 2025
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19 June 2025Key concept: In business, 20% of your customers drive 80% of your revenue. Identifying and nurturing those top customers is crucial for long-term growth, in any business.

This is 18th of 52 articles about what business owners can do to grow their businesses this year.
Introduction to the Pareto Principle (80/20 Rule)
The Pareto Principle, also known as the 80/20 rule, is a simple yet powerful concept: roughly 80% of your revenue stems from 20% of your clients. In business, this often means that a small group of customers – just 20% – drives the majority of your revenue. Recognising and focusing on this vital few can dramatically improve profitability, retention, and growth.
The “Pareto” in the Pareto Principle refers to Vilfredo Pareto (1848–1923), an Italian economist, sociologist, and engineer. Pareto is best known for his observation in the late 19th century that approximately 80% of the land in Italy was owned by 20% of the population. This led him to explore similar patterns in other domains, laying the groundwork for what later became known as the Pareto Principle or the 80/20 Rule.
Although the concept was later generalized and popularized by management consultant Joseph M. Juran in the 1940s (who named it after Pareto), the idea is:
- Roughly 80% of effects come from 20% of causes.
- Common examples:
- 80% of sales come from 20% of clients.
- 80% of software bugs come from 20% of the code.
- 80% of complaints come from 20% of customers.
While not always a precise ratio, it’s a useful heuristic in economics, business, productivity, and more.
Let’s look at how to recognise your top 20% of customers and follow it up with tips on how to look after them, so they feel special and keep buying.
How to Identify Your Top 20%
Some of these may seem relatively simple, but think about future growth potential, not just where you are at right now.
1. Track Sales Data and Rank Customers by Turnover
If you’re using any sales platform (like Etsy, Shopify, or a POS system), export your customer purchase history into a spreadsheet and:
- Sort by total spend (highest to lowest). Consider a suitable time frame here. Should that total spend be in the last quarter, the previous 2 quarters, or the last year? What works for your business, business sector and your products?
- Look at the frequency of purchases.
- Look at average order value (AOV).
- Look at the net profit gained from those customers.
- Calculate the cumulative turnover percentage for each customer.
These are your high-value customers. [1] [3][6]
2. Use RFM Analysis (Recency, Frequency, Monetary)
Evaluate customers based on:
- Recency: How recently they bought from you
- Frequency: How often they buy
- Monetary: How much they spend
The best customers score high on all three.
3. Segment Your Customer Base
- Identify the group that accounts for roughly 80% of your turnover – this is typically your top 20% of customers (the “A” segment in ABC analysis). [1] [3] [6]
- Optionally, consider other value factors such as profit margin, frequency of purchase, referrals, and customer lifetime value (CLV). [2] [7]
4. Evaluate Growth Potential
- Assess not just current turnover but also future potential: look at engagement, loyalty, and likelihood to buy more or refer others. [3] [2]
- Use scoring or segmentation tools to refine your top customer list. [3]
5. Watch for Engagement Signals
Especially if you don’t have robust sales data:
- Who opens your emails consistently?
- Who follows, likes, and comments on your social media?
- Who shares or refers your business?
These are loyal customers, even if they don’t spend the most, they influence others.
How to Look After Your Top Customers
You may be doing some of these already, but really focus your efforts on the top 20% who give you 80% of your revenue as per the Pareto Principle.
1. Create a VIP Program
Offer exclusive perks:
- Early access to new products
- VIP-only sales or events
- Free shipping or gifts on big orders
2. Personalise Their Experience, Communications and Offers
- Use their name in communication.
- Tailor your emails, offers, and recommendations to their preferences and purchase history. [4] [6]
- Send handwritten thank-you notes or personalised messages (especially powerful in craft businesses).
3. Deliver Exceptional Customer Service and Build Strong Relationships
- Assign dedicated account managers or VIP support channels for your top customers [4]
- Respond promptly to their inquiries and resolve issues quickly.
- Invite them to special events, webinars, or private previews. [4]
- Ask for their feedback and involve them in product development or beta testing. [2] [4]
4. Reward Loyalty
- Implement a loyalty or rewards program that gives extra benefits to your top customers. [5]
- Offer perks such as free shipping, priority service, or surprise gifts.
- Offer surprise gifts on birthdays or after a big purchase.
- Give them a “thank-you” coupon for their next purchase.
- Send a free sample of a new product before it launches.
5. Anticipate Needs
- Use data analytics to anticipate future needs and proactively offer solutions. [4]
- Create custom bundles or packages based on their buying patterns.
6. Ask for Feedback (and Listen)
- Make them feel like insiders.
- Ask for their input on new designs, products, or packaging.
- Let them beta test or review new products.
7. Encourage Advocacy
- Encourage referrals and word-of-mouth by making it easy for them to share their positive experiences. [2]
- Recognise and thank them for referrals or social media mentions.
8. Track and Re-engage
- Use a spreadsheet or CRM to track top customers.
- If they go quiet, reach out with a personal message:
“Hey, we noticed we haven’t seen you in a while – here’s something special just for you!”
9. Monitor and Adjust
- Regularly review your top customer list and engagement strategies.
- Stay alert to changes in purchasing behaviour and adapt your approach as needed. [3] [6]
Bonus: How to Keep It Simple
There is no reason why using the Pareto Principle needs to be complicated or scary.
- Use a spread sheet to log names, purchases, and last contact dates.
- Add notes like “loves floral patterns” or “buys every holiday season.”
- Set a reminder to reach out every 2–3 months.
In Conclusion
Identify your top 20% customers by analysing sales and engagement data, then nurture them with personalised communication, exceptional service, exclusive rewards, and proactive relationship-building. This targeted approach maximises retention, loyalty, and long-term business growth. [1] [4] [6]
#HaywardHub #MakeADifference #ChangeOneThing #BusinessGrowth #Pareto
To learn more about what we do at the Hayward Hub, please visit our website here, follow me on LinkedIn, or connect with me on Facebook.
References
- https://onstrategyhq.com/resources/how-to-identify-the-8020-customer/
- https://en.wikipedia.org/wiki/Most_valuable_customers
- https://www.dinmo.com/customer-segmentation/abc-analysis/
- https://www.surveysensum.com/blog/6-game-changing-strategies-for-delighting-your-high-value-customers
- https://www.leat.com/resources/blog/loyalty-program-best-practices
- https://blog.reviews.io/post/why-focus-on-the-top-20-of-your-customers-how-to-leverage-the-pareto-principle-for-maximum-profitability
- https://www.americanexpress.com/en-us/business/trends-and-insights/articles/how-to-identify-your-most-valuable-customers/
- https://www.zendesk.co.uk/blog/customer-retention-2/
- https://www.incentivesmart.com/blog/loyalty-management/
- https://www.americanexpress.com/en-us/business/trends-and-insights/articles/how-to-help-drive-customer-loyalty-with-the-80-20-rule/
- https://www.investopedia.com/terms/1/80-20-rule.asp
- https://www.entrepreneur.com/growing-a-business/the-8020-rule-of-sales-how-to-find-your-best-customers/229294
- https://www.behindtheshutter.com/taking-care-of-your-20-how-to-take-care-of-your-top-clients/
- https://www.practicalecommerce.com/Focusing-on-the-Top-20-Percent-of-Your-Customers
- https://www.forbes.com/councils/forbesfinancecouncil/2022/02/08/the-8020-rule-is-brutal-thats-why-it-works/
- https://amplitude.com/blog/customer-segmentation



