What revenue, gross profit, expenses and net profit are actually telling you
Your accountant, or your software, hands you a profit and loss statement.
Revenue. Cost of goods sold. Gross profit. Operating expenses. Net profit.
You nod along. You're not entirely sure what half of it is actually telling you.
You don't need an accounting qualification to read a P&L. You need to understand what each line represents, and what question it's answering.
The short answer
A profit and loss statement — sometimes called an income statement — shows what your business earned and spent over a period, and what was left over. The Australian Government describes it simply: a profit and loss statement lists your sales and expenses, and tells you how much profit you're making, or how much you're losing.
It's usually prepared monthly, quarterly or yearly, and figures should be clearly labelled as either GST inclusive or exclusive.
The five lines that matter most
| Line | What it means |
|---|---|
| Revenue | Total income from sales, before any costs are deducted |
| Cost of Goods Sold (COGS) | The direct cost of producing what you sold — materials, stock, direct labour |
| Gross Profit | Revenue minus COGS — what's left after the direct cost of making the sale |
| Operating Expenses | The cost of running the business day-to-day — rent, wages, marketing, insurance, admin |
| Net Profit | Gross profit minus operating expenses — the genuine bottom line for the period |
A simple example
A small retailer sells $50,000 of product in a month. The stock that was sold cost $20,000 to buy. That leaves a gross profit of $30,000.
Running the shop — rent, wages, electricity, insurance — costs $22,000 for the month. Net profit is $8,000.
Two businesses can have identical revenue and completely different stories depending on where the gap sits — a thin gross margin versus a healthy one, or lean overheads versus bloated ones. The single “bottom line” number hides which of those is true.
The most common mixing-up point: COGS vs operating expenses
This is where most new business owners get tangled. Cost of goods sold is the direct cost of what you sold — it moves up and down with sales volume. Operating expenses are the cost of simply being open — rent doesn't change whether you sell one item or one hundred.
Getting this split right matters, because it's the difference between gross profit (are my products/services priced correctly?) and net profit (is the whole business viable?) — two different questions with two different answers.
What the P&L can't tell you on its own
A profit and loss statement measures profit — not cash. It doesn't show whether customers have actually paid you, what you owe, or what you own. For that, you need the balance sheet and cash-flow statement alongside it. Reviewed together, they tell a much more complete story than any one of them alone.
How to actually use it, not just read it
Compare periods, not just numbers. Is gross profit as a percentage of revenue improving or slipping month to month?
Watch the gap between gross and net profit. A widening gap usually means overheads are growing faster than sales.
Look for what changed, not just what happened. A single unusual month is a data point. A trend across several months is a signal.
Use it to set prices and targets. business.gov.au specifically recommends using your P&L to help set sales targets and appropriate pricing, not just to look backward.
A quick self-check
Can I point to my gross profit line and explain what's included in it?
Do I know whether my gross margin has moved in the last three months, and why?
Am I clear on the difference between what I sold for and what's left after running costs?
Have I looked at this alongside my bank balance, or only on its own?
Free official resource
The Australian Government provides a free profit and loss statement template for setting up your own.
business.gov.au — Set up a profit and loss statement https://business.gov.au/finance/financial-tools-and-templates/set-up-a-profit-and-loss-statement
When should you get professional help?
your gross margin looks different from what you'd expect and you're not sure why;
net profit and your bank balance seem to be telling two different stories;
you want to use your P&L to set pricing or growth targets rather than just report on the past; or
you're preparing for tax time and want to understand what you're looking at before it's finalised.
Continue learning
→ What Is a Balance Sheet — and Why Should a Business Owner Care?
→ Revenue, Gross Profit, Net Profit and Cash — What's the Difference?
→ What Is a Healthy Profit Margin for My Business?
SKC Accounting | Knowledge Centre | Knowledge Guide 009
Last reviewed: August 2026
General information only. This guide does not take into account your individual circumstances and is not a substitute for professional accounting, taxation, legal or financial advice.