What is the GST registration process?

To register for GST, you have to first have an Australian business number (ABN). Once you have an ABN, and you reach the GST threshold, you register for GST by either going to the Online services for business , calling the ATO on 13 28 66 or going via your registered tax agent or BAS agent .

What are the penalties for not complying with GST?

If you meet the GST threshold, but you don't register for GST, you might have to pay GST on all sales since the day you were required to register. You might also have to pay penalties and interest . For specific information regarding your business, you should speak to a tax agent or an accountant .

Who needs to register for GST?

Businesses, freelancers, sole traders and non-profit organisations have to register for GST if they meet a certain threshold. For businesses, freelancers and sole traders the limit is $75,000+ for the last 12 months. For non-profit organisations the limit is $150,000+ for the last 12 months. If you provide taxi or limousine travel for passengers you have to register for GST regardless of your turnover. The same applies if you want to claim fuel tax credits for your business.

How to calculate GST for freelancers?

Freelancers who are registered for GST, pay the same GST rate as everyone else: 10%. This means that you should add 10% GST on top of your prices. Work out your prices with the GST calculator .

How can a GST calculator help you?

A GST calculator helps you quickly and accurately work out how much GST to charge when you sell products or services. You can work out the GST amount, as well as the price including and excluding GST.

How can free invoicing software help you?

If you use free invoicing software , GST will also be calculated automatically for you. Simply enter what you've sold and the tax will be applied. Your products and services are also saved, including their tax rate, so that they can be added to future invoices with the click of a button. Start 30-day free trial

GST is one type of tax. It's sometimes called consumption tax . Consumption tax is a tax that individuals pay on the sale of goods and services. It helps fund public services like education, healthcare and public transportation. As a business, you claim GST from clients and pay GST to suppliers. However, what you collect and what you pay should work out to 0. If you've claimed more GST than you've paid, you'll pay the difference to the ATO. If you've paid more than you've claimed, you'll get a GST refund from ATO. See also: What is GST?

How much is GST in Australia?

The GST rate in Australia is 10%. Some items are GST-free, and these should not have GST added to the price.

How to calculate GST inclusive?

If you want to calculate how much the price is including GST, then you take the original price times 1.1. If you sell an item for $200, then the GST inclusive price would be: $200 x 1.1 = $220

Do I need to register for GST as a sole trader?

If you're a sole trader , you have to register for GST if you reach a turnover threshold of $75,000+ within 12 months. You can register for GST by going to the Online services for business , calling the ATO on 13 28 66 or going via your registered tax agent or BAS agent .

What items are GST-free in Australia?

Certain items are GST-free. This means that GST should not be added when these goods or services are sold. The list of GST-free items includes basic food, international transport, exports, and some education courses, medical services, charitable activities and so on. You should check out the ATO website for detailed information, or consult a tax agent or accountant for specific questions regarding your business.

Should GST be included in the price?

On your invoice you should show the unit price excluding GST, the GST amount, as well as the total price including GST. If you use free invoicing software , GST will be calculated automatically once you enter the unit price excluding GST. Create your free account See also: What do I do about tax on my invoice?

What's the difference between GST inclusive and GST exclusive?

GST inclusive is the price including GST. To work out the GST amount that has been added you divide the price by 11: $110 / 11 = $10 GST exclusive is the price excluding VAT. To figure out how much GST to add you multiply the price by 11: $110 x 11 = $121

How do I report and pay GST to the ATO?

When you register for GST, you choose how often you want to report and pay GST. To report GST to the Australian Taxation Office (ATO), you'll lodge what's called a business activity statement (BAS) .

Does net include GST?

Gross is a total amount, net is an amount after deductions like tax or discounts have been made. Net is the price excluding GST, for example $100 Gross is the price including GST, for example $100x1.1 = $110

Free GST calculator

This free GST calculator helps you quickly calculate
goods and services tax. Perfect for freelancers,
contractors, and small businesses in Australia.

Amount

Includes GST

Excludes GST

GST: AU$00.00

Excl. GST: AU$00.00

Invoice with this rate

What is goods and services tax?

GST, or goods and services tax, is a consumption tax applied to the sale of most goods and services in Australia. The GST rate in Australia is 10 percent.

Businesses that are registered for GST must include GST in their sales prices, collect it from clients, and remit it to the government, so long as its:

a payment of some kind
made as part of operating a business
connected with Australia

The tax applies whether you live in Sydney, Melbourne, Brisbane, Perth, Adelaide or anywhere in else in Australia.

Calculate your GST now

Who has to register for GST?

You have to register for GST when you reach a certain turnover threshold.

Types of business	Turnover threshold
Sole trader or freelancer	$75,000+
Business	$75,000+
Non-profit organisation	$150,000+
Taxi or limousine drivers	Must register for GST regardless of turnover

What is a GST calculator?

A GST calculator is a tool that helps you calculate goods and tax (GST) for your products or services. If you’re registered for GST, you have to include GST on your invoices, unless you sell GST-free goods or services.

The calculator helps you work out the price including or excluding GST, and to comply with the rules and regulations in Australia.

Why use the GST calculator? ⚖️

Accurate GST calculations
Easy to use
Save time and work out GST in seconds
Work out the price both including and excluding GST
Completely free to use

Try the GST calculator

How do I work out the GST?

For prices excluding GST

Add GST to the price

To figure out the total price with GST, simply multiply the original price by 1.1.

$100 x 1.1 = $110

Work out the GST amount to add

To figure out how much GST you’ll be charging, simply multiply the original price by 0.1.

$100 x 0.1 = $10

For prices including GST

Exclude GST from the price

If you want the price without GST, divide by 1.1

$110 / 1.1 = $100

Work out the GST amount that was added

To figure out how much GST was included in the price you have to divide the price by 11.

$110 / 11 = $10

GST on different prices in Australia

Price excluding GST	GST amount	Price including GST
$100	$10	$110
$200	$20	$220
$300	$30	$330
$400	$40	$440
$500	$50	$550
$600	$60	$660
$700	$70	$770
$800	$80	$880
$900	$90	$990
$1000	$100	$1100

Current GST-free items (2025)

These are some examples of GST-free items:

most basic food
certain education courses, course materials and related excursions/field trips
certain medical, health, and care services
certain medical aids and appliances
certain medicines
certain menstrual products
certain childcare services
certain religious services and charitable activities
water, sewerage and drainage
international transport
exports
certain telecommunications supplies

You should consult a tax agent or accountant for specific questions regarding your business.

Source: ATO.gov

FAQ

Frequently asked questions about the GST calculator

Is Conta really free to try?

Yes. Every feature is free to use for 30 days, and you don't need a card to start. We're also adding new features frequently, including the free mobile app you can use to send invoices on the go.

Do I need any experience with invoicing to use Conta?

No. Conta is built so anyone can send their first invoice in minutes, no accounting background needed. Add a customer, add what you sold, and send. That's it.

Is my data safe with Conta?

Yes. Your invoices and customer data are encrypted and stored securely, and you can export everything at any time. We never sell or share your data with third parties.

What happens when my 30 days are up?

Nothing gets deleted. Your account switches to read-only, so you can still open and export every invoice and all your data. To keep sending invoices, choose a plan whenever it suits you.

Do I need to download any software?

No, Conta is cloud-based, so you don't need to install or download anything. All you need is a browser and an internet connection. With the free mobile app, you can even send invoices from your phone.

What are the benefits of using invoicing software?

Invoicing software saves you time compared to filling out templates by hand, reduces the risk of errors, and remembers your clients and products for reuse. With Conta, you can send invoices to a client's email directly, or download PDFs to send yourself.

How many invoices can I send during my trial?

You can create and send an unlimited number of invoices during your 30-day trial.

Can I generate PDF invoices using Conta?

Yes, Conta generates PDF invoices which you can send to your client's email directly from the system, or download and send manually.

What is the difference between quotes and invoices?

A quote is a price estimate you send before you start work. An invoice is a bill for products or services you've sold, usually sent after the work is complete, requesting payment.

What are you waiting for?

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