As a business grows, its tax obligations often grow with it. One of the most important milestones is Goods and Services Tax, commonly known as GST. Understanding when GST applies, how to manage it correctly and how to plan ahead can help growing businesses avoid costly mistakes and cash flow pressure.
What Is GST?
GST is a 10 percent tax applied to most goods and services sold in Australia. Businesses that are registered for GST collect it on taxable sales and pay it to the ATO, usually through their Business Activity Statement BAS.
GST also allows businesses to claim credits for the GST they pay on eligible business purchases, reducing the overall amount payable.
When Do You Need to Register for GST?
You must register for GST if your business has a GST turnover of $75,000 or more in any rolling 12 month period. For non profit organisations, the threshold is $150,000.
GST turnover includes most business income, not profit, and is based on expected and current income. This means growing businesses need to monitor turnover regularly, not just at the end of the financial year.
You can also choose to register voluntarily if your turnover is below the threshold. This may be beneficial if you want to claim GST credits or appear more established to clients.
What You Must Do Once Registered
Once registered for GST, your business must:
- Charge 10 percent GST on taxable sales
- Issue tax invoices when required
- Collect and track GST separately from income
- Lodge BAS on time
- Pay any GST owing to the ATO
Not all sales include GST. Some supplies are GST free or input taxed, so it is important to understand which category applies to your business activities.
Claiming GST Credits
GST credits allow you to claim back the GST included in the price of business purchases, provided:
- The purchase is for business use
- You are registered for GST
- You have a valid tax invoice
Common expenses where GST credits may apply include rent, utilities, professional services and business equipment.
You can only claim the business portion of GST if an expense is partly private.
BAS Lodgement and Payment
Most small and growing businesses lodge BAS quarterly, though some may be required or choose to lodge monthly.
Your BAS reports:
- GST collected on sales
- GST paid on purchases
- PAYG withholding if you employ staff
Even if you have no GST to report for a period, you still need to lodge your BAS by the due date.
Common GST Mistakes Growing Businesses Make
As businesses scale, GST errors can creep in. Common issues include:
- Missing the registration threshold
- Treating GST collected as business income
- Claiming GST credits without valid invoices
- Incorrectly classifying GST free or input taxed sales
- Falling behind on BAS lodgements
These mistakes can lead to back payments, penalties and interest.
Tips to Stay Ahead of GST Obligations
To manage GST with confidence as your business grows:
- Track turnover monthly so you know when registration is required
- Keep GST funds separate to protect cash flow
- Use accounting software that tracks GST automatically
- Review GST reports before lodging BAS
- Get advice when adding new products or services
Good GST habits early make growth smoother and less stressful.
How Hervey Bay Tax Solutions Can Help
GST can become more complex as your business expands. Hervey Bay Tax Solutions works with local businesses to help them register correctly, lodge BAS accurately and plan for future growth.
If your business is approaching the GST threshold or you want support managing GST, the Hervey Bay Tax Solutions team is here to help.

