How to Read a Profit and Loss Statement
A Profit and Loss statement, often called a P&L or income statement, shows whether your business made a profit or loss over a period. It brings together revenue, cost of goods sold, gross profit, operating expenses and net profit so you can see what changed and why.
For small businesses, the P&L is most useful when it is reviewed regularly and read beside the balance sheet and cash flow. Profit tells one part of the story. Cash, unpaid invoices, supplier bills and tax liabilities tell the rest.
A useful Profit and Loss statement does not just show whether you made money. It shows which income, costs and margins deserve attention next.
Quick answer
A Profit and Loss statement reports income and expenses over a period, then shows profit or loss. The Small Business Development Corporation’s financial processes guidance explains that profit and loss reports on income, expenses and profit, while a balance sheet reports assets, liabilities and net equity at a point in time.
If you are new to the term, the Profit and Loss statement glossary is a useful companion.
Key points
- The P&L covers a period, such as a month, quarter or financial year.
- Revenue minus cost of goods sold gives gross profit.
- Gross profit minus operating expenses gives operating profit or net profit, depending on the report structure.
- A profitable P&L does not guarantee healthy cash flow.
- Review the P&L with the balance sheet and cash flow statement.
The main parts of a Profit and Loss statement
| P&L line | What it means | Why it matters |
|---|---|---|
| Revenue | Sales or service income earned during the period | Shows business activity |
| Cost of goods sold | Direct costs of delivering the sale | Helps calculate gross margin |
| Gross profit | Revenue minus direct costs | Shows whether pricing covers delivery costs |
| Operating expenses | Rent, wages, subscriptions, marketing, admin | Shows overhead pressure |
| Net profit or loss | What remains after expenses | Shows overall performance for the period |
Some reports include extra sections such as other income, depreciation, finance costs or tax. The exact layout depends on your chart of accounts and reporting settings.
A simple P&L example
| Line item | Amount |
|---|---|
| Sales income | $48,000 |
| Cost of goods sold | $18,000 |
| Gross profit | $30,000 |
| Operating expenses | $22,000 |
| Net profit | $8,000 |
In this example, the business made a profit. The next question is whether that profit is enough after considering unpaid invoices, upcoming supplier bills, loan repayments, tax and owner drawings.
That is why the P&L should never be read alone.
What the P&L can tell you
Whether sales are growing
Compare revenue month by month, quarter by quarter or year on year. A sales increase is good only if margin and cash collection are also healthy.
Whether margin is improving
Gross profit margin can show whether pricing or direct costs need attention. If revenue is up but gross margin is falling, the business may be working harder for less return.
Whether overheads are creeping up
Subscriptions, insurance, contractors, advertising and finance costs can drift upward. A monthly P&L review helps catch those changes early.
Whether the chart of accounts is useful
If every expense is coded to “miscellaneous”, the P&L cannot guide decisions. A clean chart of accounts makes the report more useful.
Profit is not the same as cash
A business can show profit but still feel short of cash. Common reasons include:
- customers have not paid invoices yet
- inventory or equipment purchases used cash
- supplier bills are due soon
- GST, PAYG or super liabilities are waiting
- loan repayments reduce cash but may not appear as normal expenses
- owner drawings reduce bank balance
Review accounts receivable ageing, accounts payable and bank reconciliation before relying on profit alone.
GST and the P&L
For GST-registered Australian businesses, GST collected from customers is usually a liability to the ATO rather than true income. GST paid on purchases may also be treated separately rather than as a normal expense, depending on setup.
That makes tax code accuracy important. If GST is coded incorrectly, the P&L and BAS reports can both become harder to trust. The GST, VAT and sales tax guide is a practical starting point for checking software setup.
A monthly P&L review checklist
- Confirm bank accounts are reconciled.
- Check sales for missing or duplicated invoices.
- Review cost of goods sold and direct costs.
- Look for unusual expense movements.
- Check uncategorised or suspense accounts.
- Compare gross margin to prior periods.
- Review unpaid invoices and supplier bills.
- Write down the one decision the report suggests.
The final step matters. Reports should lead to action, such as following up overdue invoices, reviewing prices, renegotiating supplier costs or cleaning up expense categories.
Frequently asked questions
What is a Profit and Loss statement?
A Profit and Loss statement shows income, expenses and profit or loss for a period such as a month, quarter or financial year.
Is Profit and Loss the same as cash flow?
No. Profit and Loss shows financial performance over a period. Cash flow shows actual cash movements. A business can be profitable and still short of cash.
Does GST appear in Profit and Loss?
GST is usually tracked separately from income and expenses when the business collects and remits it. Check your accounting method and software setup with your accountant.
How often should a small business review Profit and Loss?
Monthly review is a strong habit because it helps you identify revenue, margin and cost changes before year end.
Conclusion
The Profit and Loss statement is one of the most useful reports in a small business, but only when it is read with context. Use it to ask better questions: what changed, what caused it and what should we do next?
In Gimbla, keep invoices, bills, bank reconciliation and tax settings tidy so the P&L reflects real business activity rather than clean-up work waiting for tax time.
Gimbla Contributor | May 20th, 2026