One of the most common questions from new business owners is: "Do I need to register for GST now, or can I wait?"
The answer depends on your GST turnover, not simply on whether you feel ready to deal with BAS reporting.
When does GST registration become mandatory
For most small businesses in Australia, you generally need to register for GST if your GST turnover is $75,000 or more, or if you expect it to reach that amount. Businesses that are not yet registered should monitor their turnover regularly. Once the threshold is reached, or is likely to be reached, the registration obligation should not be ignored.
Why late GST registration is expensive
This matters because late GST registration can be expensive.
If your business should have been registered earlier, the ATO may require you to account for GST from the date you were required to register. That can be a serious cash flow problem, especially if you did not add GST to your prices at the time. In that situation, the GST may effectively come out of your margin.
What changes once you are registered
Once registered, your business needs to manage GST properly.
Your sales invoices need to be set up correctly. You need to know which sales are taxable, which may be GST-free, and which may be input taxed. You also need to keep valid tax invoices for expenses if you want to claim GST credits. A bank payment alone may not be enough if it does not show the required supplier and GST details.
You will also need to lodge Business Activity Statements (BAS) on time. A BAS should not be a rough estimate. It should be supported by your bookkeeping records, bank transactions, sales invoices, purchase invoices and payroll records where relevant.
Common GST mistakes to avoid
Common mistakes include:
- Thinking the $75,000 threshold is based on profit rather than turnover.
- Not registering because GST was not separately charged to customers.
- Forgetting to update pricing, invoice templates and accounting software after registration.
- Spending GST collected from customers as if it were business profit.
- Lodging BAS without reconciling invoices, bank transactions and bookkeeping records.
If your business is growing quickly, the GST threshold can arrive sooner than expected. This is especially common when a business starts working with larger clients, receives platform income, expands into new services, opens another location, or increases advertising and sales activity.
GST is not just a year-end tax issue. It is an ongoing compliance and cash flow matter. When the system is set up properly, BAS reporting becomes much easier. When it is not, the business may face backdated GST, penalties, interest and unnecessary stress.
If your turnover is approaching $75,000, or if you are unsure whether your business should be registered, it is worth reviewing your GST position before the issue becomes urgent.
