How to test whether a business idea is viable

Friends may love your idea. That is encouraging, but it is different from a customer choosing to pay. Before you sign a lease, order a year’s stock or leave a job, test the smallest version of what you intend to sell.

Find evidence of demand

Describe one customer and the problem they have. Speak to people who fit that description. Ask what they do now, what it costs them and what would make them change. Avoid asking only whether they like the idea; polite answers are easy to give. A paid trial, booking or repeat order is stronger evidence.

For example, a Sydney bookkeeper plans a monthly reporting service for small cafés. Ten owners say they want clearer numbers. Three pay for a one-month trial. That does not prove a large market exists, but it gives the bookkeeper real work, feedback and a starting price to test.

Test whether delivery works financially

Write down the price of one sale, then every direct cost of delivering it. Allow for your own time even if you are not paying yourself a wage yet. The amount left must also help pay rent, software, insurance, administration and tax. The pricing guide and break-even calculator help you explore the figures.

Suppose the café pays $400 a month. Software, outsourced work and delivery time cost $180. The $220 difference is not take-home pay; it still needs to cover shared costs. If the service needs many more hours than expected, change the process or price before promising it to more customers.

Check the cash needed to get started

List one-off setup spending and regular costs until sales receipts become reliable. Put expected cash receipts in the week or month they are likely to arrive. A new business may make sales while still needing cash for equipment and bills. Try the start-up cost calculator and cash-flow forecast guide.

Decide what would change your mind

Before testing, set a review point. For example: after six paid trials, at least four customers must want to continue at a price that covers delivery cost. If the result falls short, ask whether the problem, customer group, offer or delivery method needs to change. This is useful learning, not a failure.

Capture the evidence and open questions in the business plan template. Then use the start-up checklist to check registrations, licences, records and insurance before launch.

Important things to know

• A few positive interviews do not guarantee continuing demand. Look for paid behaviour and repeat use.
• Keep your cost and price figures on the same GST basis.
• Check activity-specific licences, permits and insurance before trading. An accountant can review the numbers and structure for your circumstances.