Business Cashflow Tax Tips Taxation
Juston Jirwander

Juston Jirwander

Company Director

What is GST Turnover business man at a table with computer and figures on paper

What is GST Turnover

GST turnover is based on the gross (before tax) income of your business, excluding any:

  • GST included in sales to your customers
  • Sales that are not for payment and not taxable
  • Sales not connected with an enterprise you run
  • Input-taxed sales you make such as sales of Financial Supplies like Shares or rent from residential accommodation
  • Export of goods or services – and any sales not connected with Australia.

When to register for GST Uber Driver with mobile phone app open looking at passenger in the backseat and smiling,

When should you register for GST?

A business must register for GST in any of the following circumstances:

  • Your business or enterprise turns over $75,000 or more (or $150,000 if it’s a not‑for‑profit organisation)
  • If you provide taxi or limousine travel for passengers in exchange for a fare (including ride‑sourcing, such as Uber, Ola or DiDi)
  • Or, you want to claim fuel tax credits for your business or enterprise.

You can also register for GST if your GST Turnover is under the threshold. For example, if you have plans to purchase a large asset that attracts GST for your business. If you do this however you must then start to pay GST on your income even if the amount is below $75,000 per year.

How to calculate GST hands typing into a calculator with data graphs on table behind

How do you calculate your GST turnover ?

Remember the threshold is:

  • $75,000 or more for businesses and enterprises
  • $150,000 or more for not‑for‑profit organisations. To work out whether you reach the GST turnover threshold, you need to calculate both your:
  • current GST turnover, and
  • projected GST turnover.

If your current GST turnover reaches the threshold but your projected GST turnover doesn’t, you don’t need to register (unless you provide taxi travel or want to claim fuel tax credits).

How to calculate current GST turnover mechanic working on an engine in a workshop

Calculating current GST turnover

This is the gross income of your business for the current month and the previous 11 months.

Let’s look at an example:

Barry is a sole trader who sells specialised car parts. At the end of June this year, his gross business income for the month is $2,560. Barry must work out if this amount plus the previous 11 months’ gross business income reaches the threshold of $75,000.

Barry adds his gross business income for June and the previous 11 months together. His current GST turnover is $31,170. Although this is less than $75,000, he must now calculate his projected GST turnover. He will need to register for GST if this is $75,000 or more. Barry continues to calculate his projected gross business income each month and, if he meets the threshold in the future, he will have 21 days to register for GST from that time.

calculating projected GST turnover two female art sellers standing in front of their gallery store

Calculating projected GST turnover

This is the likely gross income of your business for the current month and the next 11 months.

Another Example:

Leanne and Jenette own and operate a business selling art and are in a partnership business structure. At the end of June this year, their gross business income for the month is $7,560. Leanne and Jenette need to work out if the business must register for GST. To do this, they need to project what the business’s gross income will be for the next 11 months.

As Leanne and Jenette’s projected gross business income is the same each month, they need to multiply the business’s gross income for June by 12 to see if it has reached the GST threshold of $75,000. They calculate their projected GST turnover as follows: $7,560 × 12 = $90,720. As this is over the turnover threshold of $75,000. They have 21 days to register the business for GST.

How do you register for GST

Before you register for GST you must have an Australian business number (ABN). To register for an ABN, visit abr.gov.au.

You can apply for a business name and register for GST (and other taxes and PAYG withholding if necessary) at the same time.

If you already have an ABN, you can register for GST in the following ways:

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