Understanding profitability

Why it matters

Profit is the business’s capacity to survive a bad quarter, pay the owner properly, invest in people and equipment, and eventually be sold for a meaningful sum. A business that is not profitable is borrowing time from its owner, its suppliers or the bank. Knowing your margins by product, service and customer is also the fastest route to better decisions: most small businesses have a few things that make almost all the profit and a long tail that quietly erodes it.

Three kinds of profit

Gross profit is revenue minus the cost of sales: the materials, stock, subcontractors and direct labour that go into what you sold. It tells you whether the core act of selling your product or service makes money before the business’s running costs are considered. Operating profit (sometimes called EBIT) deducts the overheads: rent, administrative wages, software, insurance, marketing, vehicles. Net profit takes off interest, depreciation and tax, and is the bottom line of the profit and loss statement.

Each layer answers a different question. Weak gross profit means a pricing or direct-cost problem; healthy gross profit but weak operating profit means overheads are too high for the volume; good operating profit but little net profit points to debt or tax. Owners who only look at the bottom line cannot tell which problem they have.

Margins let you compare

A margin is profit expressed as a percentage of revenue. Gross margin is the most useful single number for a small business because it travels: you can compare this month with last, one product with another, or your business with the typical figure for your industry. A café, a consulting firm and a retailer have very different normal gross margins, so compare with businesses like yours rather than a universal target.

Contribution margin is the cousin of gross margin applied to a single product, job or customer: what each one contributes toward covering fixed costs after its own variable costs. Calculating it per customer or per service line is often the moment an owner realises that a large, demanding client is barely profitable or that a small side service is the best earner in the business.

Break-even and the levers that move profit

Break-even is the revenue at which gross profit exactly covers overheads. Divide monthly fixed costs by gross margin percentage and you have the monthly sales needed to make zero profit; anything above that drops to the bottom line at the gross margin rate. Knowing this number turns an abstract goal ("be more profitable") into a daily target ("we need $4,200 a day").

Profit has only four levers: sell more volume, raise prices, lower the direct cost of each sale, or lower overheads. Owners default to volume because it feels safest, but it is usually the hardest and most expensive. A small price increase on the right products, or a few points of direct-cost saving, often does more for the bottom line than months of chasing new customers. The illustration below shows why: when profit is a thin slice, small changes in the other slices change it enormously.

Profit is not cash

A profitable business can still run out of money. Profit is recorded when a sale is made, not when the customer pays; stock and equipment are paid for before they generate revenue; GST and income tax are collected and set aside before they are remitted; loan repayments reduce cash but only the interest portion appears in profit. A fast-growing business is often the most cash-hungry precisely because it is profitable on paper and funding that growth from its own pocket.

Read the profit and loss and the cash position together every month. If profit is good and cash is tight, the usual culprits are slow-paying customers, rising stock or owner drawings running ahead of profit. If cash looks fine but profit is weak, you may be living on customer deposits or tax not yet paid, which is a problem waiting to arrive. SMBH Consulting’s advisory work often begins with exactly this reconciliation, because the two numbers tell very different stories.

How to understand and improve your profit

1. Get the profit and loss set up properly Direct costs under cost of sales, overheads below, and a realistic owner wage included.
2. Calculate gross margin monthly Track the trend. A falling margin is the earliest warning you will get.
3. Work out break-even Monthly fixed costs divided by gross margin percentage gives the sales you need.
4. Find margin by product, service and customer Even a rough allocation will reveal where the profit really comes from.
5. Test the price lever first Model a small increase on your highest-volume items before chasing more volume.
6. Attack direct costs and overheads Renegotiate suppliers, reduce waste, cancel unused subscriptions and review rent and staffing against volume.
7. Reconcile profit to cash each month Explain the difference in debtors, stock, tax set aside and drawings.

Real-world example

A Perth landscaping business finds its real earner

Greenline Landscapes has grown to twelve staff and about $2 million in annual sales, but the owner, Marcus, has taken no real wage in two years and the overdraft is permanently full. His accountant splits the profit and loss by service line. Design-and-construct projects, which dominate revenue, run at a gross margin far below what he assumed once overtime, rework and skip bins are counted. The small maintenance division, which he considers a sideline, earns a much higher margin with predictable monthly billing.

He raises construction prices by a modest percentage, declines projects below a minimum margin, moves two staff to maintenance and sets a sales target for maintenance contracts. He also adds his own wage to overheads so the numbers stop flattering him. Within a year revenue is slightly lower, net profit is a multiple of the previous year, and the overdraft is cleared. Nothing about the quality of the work changed; the mix did.

Common mistakes

• Treating revenue as success Turnover pays nobody. A smaller business with a higher margin is usually healthier and worth more.
• Not knowing margin by service or customer Averages hide the few things that make the money and the many that lose it.
• Cutting price to win volume A discount comes straight out of profit. A ten per cent discount on a low-margin job can wipe out its entire contribution.
• Leaving the owner’s wage out Profit that depends on the owner working for nothing is not profit.
• Confusing profit with cash Spending on the strength of a good P&L while debtors, stock and tax quietly drain the account.
• Including GST in sales GST collected belongs to the ATO; reporting it as revenue overstates everything downstream.

KPIs to track

• Gross margin % Tracked monthly and compared with your own history and your industry. A falling trend is the earliest warning.
• Net profit margin % Net profit divided by revenue, after a market wage for the owner. Compare with your industry rather than a universal target.
• Break-even sales Monthly fixed costs divided by gross margin. Know it and share it with the team as a daily or weekly target.
• Profit by service line or customer Even an approximate split, reviewed quarterly, drives better pricing and sales focus.
• Profit to cash conversion Operating cash flow compared to net profit. Persistently below profit means debtors, stock or drawings need attention.

Frequently asked questions

What is a good profit margin for a small business?

It depends heavily on industry: retail, hospitality, trades and professional services each have very different norms. Compare with benchmarks for businesses like yours, and track your own trend, rather than aiming at a universal figure.

Why is my business profitable but I have no money?

Usually because customers pay late, cash is tied up in stock or equipment, tax collected has not yet been paid, or drawings exceed profit. Reconciling profit to cash each month shows which one it is.

Should I include my own wage in the costs?

Yes. If you work in the business, a market wage for that role belongs in overheads. Without it, profit is overstated and decisions about hiring and pricing are distorted.

Is it better to grow revenue or margin?

Margin first, in most cases. Growing revenue at a weak margin increases risk and cash needs without improving the result. Once margin is healthy, volume growth compounds it.

Key takeaways

• Gross, operating and net profit answer different questions; look at all three, not just the bottom line.
• Gross margin is the most useful single number: track it monthly and by product, service and customer.
• Know your break-even and turn it into a daily or weekly sales target.
• Price and cost levers usually beat volume; test them first.
• Profit is not cash: reconcile the two every month and include a real wage for yourself.