Most established businesses treat all revenue as equal. A dollar is a dollar, and they track revenue by customer. What they rarely track is profitability by customer.
This is a critical blind spot because profitability by customer reveals something that overall profit numbers hide. Some customers generate strong margins and easy cash flow, while others consume disproportionate resources and deliver minimal profit.
The businesses that scale profitably in the second half of the year do something different. They analyse customer profitability and make strategic choices about where to focus energy and which customers to gracefully exit.
Why Customer Profitability Matters
Your Profit & Loss shows you overall gross margin, revenue minus direct costs. It shows you overall operating expenses, and bottom-line profit.
What it doesn’t show is whether Customer A generates 35% margin while Customer B generates 8% margin, or whether Customer A requires two sales calls per year while Customer B requires twelve.
When you don’t know customer profitability, you make decisions blind:
- You try to grow revenue from your least profitable customers
- You spend disproportionate time and resources on high-maintenance customers
- You invest in customer acquisition costs you can’t actually afford on low-margin business
- You make pricing decisions that destroy value
- You expand your team to serve customers who aren’t actually profitable
The Customer Profitability Calculation
The calculation is simpler than most owners think. For each customer or customer segment, you need:
Revenue: Total annual revenue from that customer
Direct Costs: Materials, labor, and direct expenses to serve that customer. For many businesses, this is already tracked by project or order.
Gross Profit: Revenue minus direct costs
Gross Margin %: Gross profit divided by revenue
Operating Costs: The overhead required to serve that customer—sales time, customer service time, logistics, account management, quality issues and rework specific to that customer.
Net Profit: Gross profit minus allocated operating costs
Net Margin %: Net profit divided by revenue
For example: Customer A
- Revenue: $240K annually
- Direct costs: $165K (69%)
- Gross profit: $75K (31% margin)
- Operating costs: $8K (sales, customer service, logistics)
- Net profit: $67K (28% net margin)
- Assessment: Highly profitable. Low maintenance.
Customer B
- Revenue: $280K annually
- Direct costs: $245K (88%)
- Gross profit: $35K (12% margin)
- Operating costs: $28K (high touch, frequent issues, extensive customer service)
- Net profit: $7K (2.5% net margin)
- Assessment: Barely profitable. High maintenance. Not worth the effort.
Customer C
- Revenue: $160K annually
- Direct costs: $168K (105%)
- Gross profit: -$8K (-5% margin)
- Operating costs: $18K
- Net profit: -$26K (-16% net margin)
- Assessment: Destroying value. Should exit.
Most owners are shocked when they do this analysis. They discover they have significant customers destroying value or generating minimal profit for substantial effort.
The Common Pattern
In most established businesses, customer profitability follows a predictable pattern:
Your top 20% of customers (by profitability, not revenue) generate 80-90% of your actual profit. They’re usually easier to serve, higher margin, lower maintenance, more predictable.
Your middle 40% are reasonably profitable and stable.
Your bottom 40% are barely profitable, highly unprofitable, or actively destroying value. They’re often high-maintenance, high-issue, price-sensitive, and require disproportionate resources.
Yet most owners invest equally in all customers, or worse, focus acquisition efforts on the unprofitable segment because they seem like “growth opportunities.”
The Strategic Decisions That Follow
Once you understand customer profitability, you make different decisions:
Pricing: You might lower prices on highly profitable, price-sensitive customers to gain share. You should raise prices on barely-profitable or high-maintenance customers. Some will leave. Good.
Customer Service: Highly profitable customers deserve premium service. Barely profitable customers deserve efficient, standardized service. Unprofitable customers shouldn’t exist.
Sales Effort: Acquire customers similar to your most profitable segment. Stop chasing revenue from unprofitable segments.
Retention: Fight to keep your most profitable customers. Let marginal customers leave if they’re not willing to pay appropriately for the value they consume.
Operations: Design your operations to efficiently serve your profitable customer base. Don’t over-customize or over-service customers who don’t generate adequate returns.
Resource Allocation: Spend management time, team expertise, and capital investments on serving and growing your most profitable customers.
How to Implement This
Month 1 – Analysis Phase:
Gather the data. For each customer, calculate gross profit and identify major operating costs (sales time, customer service time, quality issues, logistics, account management). You don’t need perfect precision. 80% accurate is enough to see the patterns.
Month 2 – Assessment Phase:
Categorize customers into three groups: Highly Profitable, Moderately Profitable, Barely Profitable/Unprofitable. Understand why each group looks the way it does. Is it margin? Is it maintenance costs? Is it complexity?
Month 3 – Strategy Phase:
Make strategic decisions about each segment. What will you do differently in the next quarter? Are you going to raise prices on barely-profitable customers? Exit unprofitable ones? Focus acquisition on profitable segments?
Month 4 Onward – Execution:
Implement your customer profitability strategy. Monitor results. You should see profit improving even if revenue is flat or declining, because you’re serving a more profitable mix of customers.
The Uncomfortable Reality
Most established business owners prefer “more is better” when it comes to customers and revenue. Growing the customer base feels like success.
But customers destroying value are the opposite of success. They’re a drag on profitability and a distraction from serving your genuinely profitable business.
After more than 25 years reviewing businesses, I’ve learned that owners who build genuinely profitable enterprises are not focused on maximising revenue. They’re focused on maximising profit from strategically chosen customers.
The businesses that plateau or struggle are often trying to serve everyone at every price point, which means they’re serving profitable customers at the same intensity they serve unprofitable ones. This is backwards.
Your Opportunity
Most businesses spend all their time trying to grow revenue and hit annual targets. That’s fine. But if you haven’t analysed customer profitability, you’re likely making that effort on the wrong segment.
The better approach: Analyse customer profitability this month. Identify which customers you should be chasing and which you should be exiting. Then target your growth effort on acquiring more profitable customers.
You might grow revenue less than planned. But profit will be higher. And isn’t that actually what matters?
If you’d like help analyzing your customer profitability or determining your customer strategy, email me at richard@coumans.com.au. Most businesses are shocked by what they find when they truly understand which customers are profitable.
You’re managing blind unless you know customer profitability.
And you’re likely wasting effort on customers who destroy value.
