Not every customer who generates revenue is necessarily making your business money.

A customer might spend $50,000 with your business each year and appear extremely valuable. But if they require significant discounts, frequent support, extensive revisions, additional staff time, or generate high delivery costs, the actual profit they contribute could be much lower than expected.

This is why looking at customer revenue alone can give business owners an incomplete picture.

Understanding customer profitability can help you identify which relationships are genuinely valuable, where your margins are being lost, and where you should focus your time and resources.

What Is Customer Profitability?

Customer profitability measures how much profit your business generates from an individual customer after accounting for the costs of serving them.

A simplified calculation is:

Customer Revenue − Customer-Related Costs = Customer Profit

The challenge is identifying all the costs involved.

These may include:

• Product or service delivery
• Labour
• Discounts
• Shipping
• Customer support
• Account management
• Travel
• Administration
• Payment processing
• Returns or rework
• Additional services

The more accurately you identify these costs, the clearer your view of customer profitability becomes.

Why Revenue Doesn’t Tell the Whole Story

Imagine you have two customers.

Customer A

• Annual revenue: $50,000
• High support requirements
• Frequent discounts
• Significant administration
• Customer profit: $8,000

Customer B

• Annual revenue: $35,000
• Standard pricing
• Efficient service delivery
• Minimal support requirements
• Customer profit: $15,000

Customer A generates more revenue, but Customer B is significantly more profitable.

If you only rank customers by revenue, you may focus your attention on Customer A and overlook Customer B.

This is why revenue and profitability should be considered separately.

1. Start With Revenue Per Customer

The first step is to understand how much each customer spends.

Review:

• Total annual revenue
• Monthly revenue
• Average transaction value
• Number of purchases
• Recurring revenue
• Revenue growth

This provides a starting point, but it isn’t enough to determine profitability.

Once you know the revenue generated by each customer, you can begin comparing it with the costs associated with serving them.

2. Calculate the Direct Costs

Identify the costs directly connected to fulfilling the customer’s orders or delivering their services.

Depending on your business, this could include:

• Materials
• Inventory
• Labour
• Subcontractors
• Delivery
• Freight
• Transaction fees
• Third-party services

For service businesses, employee time can be particularly important.

A customer paying $10,000 may initially look profitable, but if the service requires significantly more hours than expected, the actual margin could be much lower.

3. Track How Much Time Each Customer Requires

Time is a cost, even when there isn’t a separate invoice for it.

Consider how much time your business spends on:

• Meetings
• Emails
• Phone calls
• Customer support
• Revisions
• Administration
• Quotes
• Travel
• Project management
• Problem-solving

If one customer requires twice as much staff time as another customer generating similar revenue, that difference should be considered when evaluating profitability.

For professional and service businesses, tracking time can be particularly useful.

4. Account for Discounts

Discounts can have a significant impact on customer profitability.

For example, suppose your standard price is $10,000, but a customer consistently receives a 15% discount.

Their revenue becomes $8,500.

If the cost of serving them remains largely unchanged, that discount directly reduces the amount available to cover overheads and generate profit.

Discounts aren’t necessarily bad.

They can be appropriate for strategic customers or larger volumes.

But business owners should understand what those discounts are actually costing the business.

5. Include Customer Support Costs

Some customers require significantly more support than others.

Consider customers who frequently:

• Call for assistance
• Request changes
• Need additional explanations
• Submit complaints
• Require urgent work
• Need repeated follow-ups

The additional labour involved can reduce profitability.

This doesn’t mean high-support customers should automatically be avoided.

It means their additional cost should be understood.

6. Consider Payment Behaviour

The timing of customer payments can also affect the financial value of a relationship.

A customer who pays invoices promptly may be easier to manage than one who regularly pays well beyond the agreed terms.

Late payments can create:

• Cash-flow pressure
• Additional administration
• Follow-up work
• Financing costs
• Increased credit risk

A customer can therefore be profitable on paper while still creating cash-flow challenges.

This is why customer analysis should consider both profitability and payment behaviour.

7. Look at Customer Profit Margin

Once you have identified the revenue and relevant costs, you can calculate a customer-level profit margin.

A simplified formula is:

Customer Profit Margin = Customer Profit ÷ Customer Revenue × 100

For example:

Customer revenue = $40,000
Customer profit = $10,000

$10,000 ÷ $40,000 × 100 = 25%

The customer generates a 25% profit margin based on the costs included in your analysis.

Comparing margins across customers can reveal important differences.

High-Revenue Customers vs High-Profit Customers

Your largest customers aren’t always your most valuable customers.

You may find four broad categories:

Each category may require a different strategy.

High Revenue / High Profit

These customers are often strategically valuable and worth protecting.

High Revenue / Low Profit

These customers may require a pricing or service review.

Low Revenue / High Profit

These customers may have potential for growth.

Low Revenue / Low Profit

These relationships may need to be assessed based on strategic value and future potential.

Don’t Automatically Drop Unprofitable Customers

Finding that a customer is currently unprofitable doesn’t necessarily mean you should end the relationship.

There may be other factors to consider.

For example, the customer may:

• Have strong future growth potential
• Provide valuable referrals
• Have the potential for additional services
• Be strategically important
• Be temporarily unprofitable due to a specific project
• Be willing to accept a price increase

Instead of immediately ending the relationship, consider whether the economics can be improved.

How to Make an Unprofitable Customer More Profitable

If a customer isn’t generating an appropriate return, you may have several options.

Review Pricing

Consider whether the price accurately reflects the time, resources, and value involved.

Reduce Unnecessary Work

Identify repetitive or inefficient processes that consume staff time.

Set Clearer Scope

For project-based work, clearly define what is included and what constitutes additional work.

Reduce Discounts

Review whether existing discounts are still justified.

Introduce Additional Charges

Certain services or requirements may need to be charged separately rather than absorbed into the original price.

Improve Processes

Automation, better systems, and clearer communication can sometimes reduce the cost of servicing customers.

Which Customers Should Get More Attention?

Customer profitability can help you decide where to focus your resources.

Your most profitable customers may deserve:

• More account management
• Priority service
• Additional product recommendations
• Loyalty incentives
• Regular reviews
• Long-term relationship planning

At the same time, customers with low margins may require a closer review of pricing and service delivery.

This allows your business to allocate resources based on financial value rather than simply customer size.

Customer Profitability Can Improve Your Pricing Strategy

Understanding customer profitability can reveal whether your pricing model is working.

You may discover that:

• Some customers receive excessive discounts
• Certain services are underpriced
• Complex customers need different pricing
• Small jobs aren’t covering administration time
• Certain customer segments generate stronger margins

This information can help you create more appropriate pricing structures.

For example, you may introduce:

• Minimum project fees
• Tiered packages
• Retainer arrangements
• Additional service charges
• Different pricing for different service levels

Customer Profitability and Business Growth

Growth isn’t always about acquiring as many customers as possible.

The quality of that growth matters.

Suppose you can choose between:

Option A: Acquire 100 customers generating $100 each with very low margins.

Option B: Acquire 30 customers generating $500 each with stronger margins.

The better option depends on the economics of the business, but the second model may potentially produce greater profit with less administrative complexity.

This is why customer profitability should form part of your growth strategy.

What Numbers Should You Track?

A useful customer profitability review might include:

• Total revenue
• Gross profit
• Gross profit margin
• Labour hours
• Direct costs
• Discounts
• Support time
• Delivery costs
• Payment timing
• Outstanding invoices
• Customer acquisition cost
• Customer retention
• Additional sales

You don’t necessarily need a complicated system to begin.

Start by identifying your most important customers and analysing the economics of those relationships.

How Often Should You Review Customer Profitability?

Customer profitability can be reviewed periodically depending on the size and complexity of your business.

A review may be appropriate:

• Monthly for major accounts
• Quarterly for broader customer analysis
• Annually as part of strategic planning
• When pricing changes
• When costs increase
• When a customer’s requirements change

The key is consistency.

A customer who was highly profitable two years ago may no longer be profitable if your costs have increased while their pricing has remained unchanged.

What About Customer Acquisition Costs?

If you’re trying to determine the true value of a customer, consider how much it cost to acquire them.

Customer acquisition costs can include:

• Advertising
• Sales commissions
• Marketing
• Sales staff time
• Promotional offers
• Onboarding

A customer who generates $5,000 in revenue may look attractive until you realise that acquiring and onboarding them cost $2,000.

This doesn’t mean the customer is necessarily unprofitable, but the acquisition cost should be considered when assessing the overall economics of the relationship.

Use Customer Profitability to Make Better Business Decisions

Customer profitability analysis can support decisions about:

• Pricing
• Marketing
• Sales
• Customer retention
• Service levels
• Staffing
• Product development
• Business growth

Instead of asking only:

“How many customers do we have?”

business owners can also ask:

“Which customers are helping us build a profitable business?”

That distinction can change how you approach growth.

How Can an Accountant Help Analyse Customer Profitability?

Customer profitability analysis can become more complicated when a business has multiple products, services, locations, employees or customer segments.

An accountant or business adviser can help you determine which costs should be included and how to interpret the results.

At Latitude Accountants, we help Australian business owners understand the financial information behind their businesses and use it to make more informed decisions.

Understanding which customers are genuinely profitable can help you improve pricing, allocate resources more effectively and focus your growth strategy on the relationships that create sustainable value.

Frequently Asked Questions About Customer Profitability

How do I know which customers are profitable?

Compare the revenue generated by each customer with the direct and indirect costs involved in serving them, including relevant labour, materials, discounts, support and other expenses.

Are high-revenue customers always the most profitable?

No. A customer can generate significant revenue while requiring substantial discounts, labour, support or other costs that reduce their actual profitability.

Should I stop working with an unprofitable customer?

Not necessarily. Consider whether pricing, service scope or operational efficiency can be improved and whether the customer has strategic or future value.

How can customer profitability improve pricing?

It can show which customers, services or segments generate insufficient margins, helping you determine where pricing, discounts or service structures may need to change.

Should customer service costs be included in profitability calculations?

Where possible, yes. Significant customer support or account management time can affect the true cost of serving a customer.

How often should I review customer profitability?

The appropriate frequency depends on your business. Major customers may benefit from more regular reviews, while smaller businesses may conduct broader customer profitability reviews quarterly or annually.

Can customer profitability help with business growth?

Yes. It can help you identify the types of customers, services and markets that generate stronger margins so you can make more informed growth and marketing decisions.

Talk to Latitude Accountants About Your Business Profitability

Knowing how much each customer spends is useful.

Knowing how much profit each customer actually contributes can be even more valuable.

Customer profitability analysis can help you identify where your margins are strongest, where costs are being absorbed unnecessarily and which relationships deserve greater attention.

Latitude Accountants provides accounting, budgeting, forecasting, tax planning and business advisory services to help Australian business owners understand their numbers and make better financial decisions.

If your business is growing but you’re unsure which customers, services or revenue streams are actually driving your profit, our team can help you analyse the numbers.

Latitude Accountants

📍 Sydney Olympic Park | Marrickville | Melbourne | Loxton
📞 1300 706 597
📧 info@latitudeaccountants.com.au

Want tailored business advice? Let’s chat.

Disclaimer

This article provides general information only and does not constitute financial, tax, accounting or business advice. Customer profitability calculations depend on the costs, pricing structures, accounting methods and circumstances of each business. You should seek advice from an appropriately qualified professional before making financial or commercial decisions based on the information provided.