When you first went into business you may not have been required to register for GST, and you may have chosen to not voluntarily register for GST. However, as your business or enterprise grows, your GST turnover may exceed the registration turnover threshold. The registration turnover threshold is currently $75,000 or $150,000 for not-for-profit organisations. If you have exceeded the threshold you must register for GST.

You reach the GST turnover threshold if either:

• your current GST turnover – your turnover for the current month and the previous 11 months – totals $75,000 or more ($150,000 or more for non-profit organisations)
• your projected GST turnover – your total turnover for the current month and the next 11 months – is likely to be $75,000 or more ($150,000 or more for non-profit organisations).

If you provide taxi or limousine travel for passengers (including ride-sourcing), you must register for GST regardless of your turnover. This applies if you’re an owner-driver and if you lease or rent a taxi.

Registering for GST is your responsibility and you must monitor your GST turnover each month to see if you will reach the registration turnover threshold. If you identify that you have exceeded the threshold amount, then you must register for GST within 21 days.

You can also choose to register for GST if you don’t meet the registration turnover thresholds. If you choose to register, you must generally stay registered for at least 12 months.