Sales by Customer
Revenue breakdown by customer. Identify your best customers and analyse sales patterns.
Overview
Sales by Customer shows how much revenue each customer generated over a period. It helps you identify your most valuable customers and analyse customer concentration.
What it shows
- Total revenue by customer
- Number of invoices per customer
- Percentage of total sales per customer
- Customer ranking by revenue
Report columns
| Column | Description |
|---|---|
| Customer | Customer name |
| Invoices | Number of invoices issued |
| Total Revenue | Sum of all invoice amounts |
| % of Total | Customer’s share of total sales |
Generating the report
Step 1: Set date range
- Select period to analyse
- Common periods: This Month, This Quarter, This Financial Year, Last Financial Year
Step 2: Choose reporting basis
| Basis | What It Includes |
|---|---|
| Accrual | All invoices in period (whether paid or not) |
| Cash | Only paid invoices |
Note: Cash basis only includes revenue from invoices that have been paid.
Step 3: Filter by customer (optional)
- Show all customers (default)
- Search for specific customer
Step 4: Click Generate Report
Understanding the layout
Summary stat cards
Top cards show:
- Total Revenue — All sales in period
- Total Customers — Number of unique customers
- Average per Customer — Revenue / number of customers
Report table
Customer Invoices Revenue % of Total
──────────────────────────────────────────────────────────
ABC Corporation 12 $45,200 32.4%
XYZ Industries 8 $28,500 20.4%
Smith & Associates 5 $15,800 11.3%
Jones Ltd 4 $12,300 8.8%
Metro Trading 6 $10,400 7.4%
... (more customers)
──────────────────────────────────────────────────────────
TOTALS 52 $139,500 100.0%Sorting
Click column headers to sort:
- Revenue — Highest to lowest (default)
- Customer — Alphabetical
- Invoices — Most invoices first
Interpreting the report
Customer concentration
Balanced portfolio:
- Top customer < 30% of total
- Several significant customers
- Long tail of smaller customers
High concentration (risk):
- Top customer > 40% of total
- Revenue dependent on few customers
- Loss of one customer = major impact
Customer value
High value, low frequency:
- Large invoices, few per year
- Often project-based or B2B
- Focus on relationship maintenance
High frequency, lower value:
- Many small invoices
- Often recurring/transactional
- Focus on volume efficiency
Using the report
Customer prioritisation
- Identify top 20% of customers (Pareto principle)
- These typically generate 80% of revenue
- Focus service and attention on these customers
Sales planning
- Target similar businesses to top customers
- Identify underperforming customer segments
- Set customer acquisition goals
Relationship management
- Review top customers regularly
- Monitor for declining trends
- Proactive communication with high-value customers
Performance tracking
- Compare periods to spot trends
- Track new vs returning customer ratio
- Measure customer lifetime value growth
Exporting
CSV export
- Generate the report
- Click Export → CSV
- File downloads as
Sales_by_Customer_YYYY-MM-DD.csv
Use CSV for:
- Sales analysis in spreadsheet
- Customer segmentation
- Presentation charts
- Historical comparison
Best practices
Regular review
- Monthly: Check for customer changes
- Quarterly: Analyse trends and concentration
- Annually: Strategic customer review
Customer diversification
- Avoid over-dependence on single customer
- Target growth in underrepresented segments
- Develop contingency plans for top customers
Revenue quality
Consider alongside Aged Receivables:
- High sales + prompt payment = excellent customer
- High sales + slow payment = manage carefully
Customer profitability
Sales by Customer shows revenue only. For full picture:
- Also review direct costs per customer
- Some high-revenue customers may be low-margin
- Consider cost-to-serve differences
AU-specific notes
GST reporting
- Report shows gross amounts (including GST)
- GST component shown separately in Tax Summary
- Revenue for P&L includes GST (accrual basis)
EOFY analysis
Before June 30:
- Run full year Sales by Customer
- Identify year-on-year changes
- Plan for customer retention strategies
Tax considerations
- Revenue recognised when invoice sent (accrual)
- Not when cash received (different from cash basis)
- Ensure all invoices correctly coded
Comparison to other reports
Sales by Customer vs Invoice Summary
| Sales by Customer | Invoice Summary |
|---|---|
| Grouped by customer | Individual invoices |
| Shows totals per customer | Shows each transaction |
| Good for analysis | Good for detail |
Sales by Customer vs Aged Receivables
| Sales by Customer | Aged Receivables |
|---|---|
| All sales (invoices) | Only unpaid invoices |
| Revenue focus | Collection focus |
| Total sales = revenue | Total outstanding = still owed |
Troubleshooting
Customer missing from report
- No invoices in selected period
- Invoices in “Draft” status (not sent)
- Credit notes exceeding invoices (net negative)
Revenue seems low
- Check date range covers expected sales
- Verify reporting basis (accrual vs cash)
- Confirm invoices are posted (not draft)
Percentage doesn’t total 100%
- Rounding differences (normal)
- Customer credits (negative sales)
- Foreign exchange differences (if applicable)
Can’t find specific customer
- Use search/filter
- Check customer is active (not archived)
- Verify invoices coded to correct customer
Invoices count seems wrong
- Includes all invoice statuses (sent, paid, overdue)
- Excludes draft invoices
- Excludes voided invoices
Related pages
- Invoice Summary — Detail of all invoices
- Aged Receivables — Unpaid invoices
- Profit & Loss — Overall revenue
- Invoices — Creating and managing invoices
Last updated: February 24, 2026
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