What Is GST For In Australia?

If you’re running a small business in Australia, you’ve probably heard a lot about GST - but what is GST for, how does it actually work day to day, and when do you need to register?

Getting GST right is more than a tax box to tick. It affects your pricing, invoices, cash flow and reporting. The good news: once you understand a few core rules, you can set up simple processes and get on with growing your business.

In this guide, we’ll break down what GST is for, who needs to register, how to charge it properly, and common pitfalls to avoid - all in plain English and with practical tips for small business owners.

What Is GST For In Australia?

GST (Goods and Services Tax) is a 10% tax on most goods and services sold or consumed in Australia. It’s a “value-added” tax - meaning GST is added at each stage of the supply chain, but businesses can usually claim back the GST they’ve paid on their purchases.

From a policy perspective, GST is designed to raise revenue for government services while keeping the system simple and broad-based. From a business perspective, your role is to collect GST on taxable sales, claim credits on eligible purchases, and report the net amount to the ATO through your Business Activity Statement (BAS).

In practice, GST helps create a level playing field: businesses charge the same 10% rate on taxable supplies, and customers can see GST included in prices for transparency.

Do I Need To Register For GST?

You must register for GST if:

• Your business has a GST turnover of $75,000 or more (gross income from taxable sales, excluding GST).
• You provide taxi or ride-sourcing services (including food delivery by ride-sourcing platforms) - this has a $0 threshold and requires registration from your first dollar of turnover.
• You are a not-for-profit with a turnover of $150,000 or more.

You can also register voluntarily if you’re below the threshold. This often makes sense if your clients are mostly businesses (who can claim back the GST you charge) and you want to claim input tax credits for your own purchases.

Unsure whether what you’re doing counts as running a business? It’s worth understanding what defines a business activity so you can make the right call on GST registration.

If you operate in the gig economy, special rules can apply. For example, ride-sourcing drivers generally need to register for GST from day one - see the guide on GST requirements for Uber drivers in Australia for more detail.

Timing matters. If you cross the $75,000 threshold (or expect to), you’re required to register within 21 days. Keep an eye on your turnover so you’re not caught out.

How Does GST Work Day To Day?

Charging GST On Sales

For taxable sales, you generally add 10% GST to your price. If you display a “retail” or advertised price to consumers, that price must include GST. This is a transparency requirement under the Australian Consumer Law, and it ties into advertised price laws in Australia.

Business-to-business pricing can be shown as “ex GST” provided the final tax invoice clearly sets out the GST amount and total price including GST. Always be consistent so customers aren’t confused.

Issuing Tax Invoices

When you’re registered for GST and make a taxable sale of $82.50 (including GST) or more, you must issue a compliant tax invoice if requested. A tax invoice shows key details like your ABN, the GST amount, and what was supplied.

In some industries, your customer may issue the invoice to you - this is called a Recipient Created Tax Invoice (RCTI). This is only permitted in specific circumstances and you’ll need a written agreement in place. If RCTIs are relevant to your business model (for example, if you supply to a large marketplace or wholesaler), read about Recipient Created Tax Invoices and set up the right paperwork before you start.

Claiming Input Tax Credits

You can generally claim the GST included in business purchases (your “inputs”) as an input tax credit, reducing the amount you owe the ATO. To claim, you need to be registered, the purchase must be for your business, and you need a valid tax invoice for purchases of $82.50 (including GST) or more.

If you make both taxable and input taxed supplies (explained below), you may need to apportion credits - you can’t claim credits for purchases that relate to input taxed sales.

Lodging Your BAS

Your BAS reports the GST you’ve collected on sales minus the GST credits you’re entitled to on purchases for the period. Most small businesses lodge quarterly; some lodge monthly if they prefer closer cash flow management, or if they’re required to based on turnover or specific ATO settings.

You can account for GST on a cash or accrual basis. Cash basis means you report GST when you receive or pay money; accrual basis means you report when you issue or receive invoices. Choose the approach that best matches your cash flow and accounting system.

Pricing, Terms And Cash Flow

Because GST affects your effective margins and cash flow, it’s smart to build it into your pricing strategy from the start. Make sure your quotes and invoices state whether prices are “incl. GST” or “ex GST”, and set clear payment timeframes in your contracts or invoices.

If you want to formalise payment rules, consider having clear invoice terms - see practical tips in setting invoice payment terms. If you plan to charge late fees, ensure they’re fair and legally compliant - the rules are covered in late payment fees.

Which Sales Are GST-Free Or Input Taxed?

Not all sales attract GST. Understanding the categories helps you charge customers correctly and claim the right credits.

GST-Free Sales

No GST is charged on GST-free supplies, but you can generally still claim input tax credits for related purchases. Common GST-free categories include:

• Basic food (limited categories - many prepared foods are taxable).
• Most health services and certain medical aids and appliances.
• Education courses and some related materials.
• Exports of goods (when the export rules are met) and certain international services.

Be careful with “mixed supplies” where part of what you sell is GST-free and part is taxable. You may need to split the price or apply reasonable apportionment.

Input Taxed Sales

Input taxed supplies do not include GST, but you generally cannot claim input tax credits for purchases that relate to making those supplies. Common input taxed categories include:

• Financial supplies (e.g. lending, issuing shares or units).
• Residential rent and sale of existing residential premises.

If your business includes both input taxed and taxable activities, you’ll need a method to apportion credits fairly.

Exports And International Sales

Exports of goods are usually GST-free if you meet the timing and documentary requirements. Many services supplied to non-residents may also be GST-free if they’re “consumed” outside Australia and meet the specific criteria. Keep good records to justify GST-free treatment.

Special GST Scenarios For Small Businesses

Importing Goods

If you import goods, GST is usually payable when the goods enter Australia. You may be able to claim this back as an input tax credit. Some businesses use deferred GST schemes to align GST payments with BAS reporting. If importing is part of your model, review the rules in understanding GST on importation and make sure your customs and paperwork are set up properly.

Digital Products And Cross-Border Services

Digital products and services supplied to Australian consumers by offshore providers can be caught by GST under the “Netflix tax” rules. If you supply digital services to overseas customers, consider whether your services are consumed outside Australia (potentially GST-free) and confirm your invoicing and record-keeping reflect the correct treatment.

Marketplaces, Platforms And RCTIs

If you sell through a marketplace or platform, the platform may be treated as the supplier for GST in some cases, or it may issue RCTIs to you. Check your platform agreement carefully so your tax invoices and BAS align with how the law treats the supplies.

Crypto And Alternative Payments

If you accept crypto as payment, you still need to consider GST on the underlying taxable supply and how you record the Australian dollar value at the time of the transaction. There are practical and legal considerations covered in accepting new payment methods - see accepting cryptocurrency payments in Australia for a helpful overview.

Grants, Vouchers And Gift Cards

Some government grants include GST (you may need to remit GST on the grant), while others do not. Vouchers and gift cards can have specific timing rules for when GST is attributable (on sale vs on redemption) depending on the voucher type. Review the terms before you assume the treatment.

Common GST Pitfalls (And How To Avoid Them)

Most GST mistakes come from a few repeat issues. Here’s how to avoid them.

1) Registering Too Late

Waiting until after you’ve clearly passed the $75,000 threshold can land you with backdated GST liabilities. Track your rolling turnover, and register within 21 days once you know you’ll exceed it.

2) Advertising Prices “Ex GST” To Consumers

Consumer-facing prices must include GST. You can show the GST component separately on the shelf ticket or invoice, but the total price must be what a consumer pays at the counter or checkout. This links to your obligations under advertised price laws.

3) Wrong GST Coding For Special Categories

Mixed supplies, GST-free items and input taxed items often trip up new businesses. Set up product/service codes in your accounting system with the correct tax codes and include plain-English notes so your team uses them consistently.

4) Claiming Credits Without Valid Tax Invoices

For purchases of $82.50 (including GST) or more, you generally need a valid tax invoice to claim credits. If the invoice is missing key details (like the supplier’s ABN), ask for a corrected version before lodging your BAS.

5) RCTIs Without An Agreement

If you and your customer use RCTIs, have a written RCTI agreement in place and make sure it meets ATO requirements. Get across the basics in the overview of Recipient Created Tax Invoices.

6) Ignoring GST On Imports And Marketplace Sales

GST on imported goods and platform arrangements can affect your margins and BAS. Confirm whether GST is paid at the border or by the platform, and how you’ll claim credits. The guide on GST on importation is a helpful starting point.

7) Terms And Late Fees That Don’t Stack Up

If you charge late fees or interest, make sure your terms are clear and legally compliant. Set your expectations up front in your invoice or contract and check the rules for invoice payment terms and late payment fees.

Step-By-Step: Setting Up Your GST Processes

Step 1: Get Your ABN And Decide When To Register

Make sure you have an ABN, then monitor your projected turnover to decide if you’ll register immediately or closer to the $75,000 threshold. If you provide ride-sourcing services, register from day one and consider the sector specifics in the GST for Uber drivers guide.

Step 2: Choose Cash Or Accrual Accounting For GST

Cash basis suits many small businesses because it aligns GST with money in and out. Accrual basis may suit you if you invoice on longer terms and want to match GST to invoice dates. Confirm the setting with your bookkeeper or accountant and keep it consistent.

Step 3: Set Up Your Accounting System And Tax Codes

Configure your products and services with the correct GST codes (taxable, GST-free, input taxed). Create invoice templates that show GST clearly and include required details such as your ABN and the GST amount or a statement that the total is inclusive of GST.

Step 4: Update Your Pricing And Customer Communications

Decide whether you’ll quote prices as “incl. GST” or “ex GST” (for B2B) and update your website, price lists and proposals. Keep consumer-facing prices inclusive of GST to meet the law and avoid confusion.

Step 5: Formalise Payment Terms

Build clear due dates, accepted payment methods and any reminder or fee process into your invoices or standard terms. Practical guidance is available in the resources on invoice payment terms.

Step 6: Prepare For BAS Lodgements

Decide on monthly or quarterly BAS, set reminders, and keep your records tidy (invoices, receipts, import documents, RCTI agreements). A simple checklist and calendar go a long way to staying compliant without stress.

Step 7: Train Your Team

Make sure anyone who issues invoices or codes transactions understands when to apply GST, when not to, and what documentation is required. Short, clear procedures will reduce errors and rework.

Frequently Asked Questions About GST

Is GST A Cost To My Business?

Generally, no. GST is designed so you collect 10% on taxable sales and claim back the GST you’ve paid on business purchases. You remit the net amount to the ATO. The cost to your business is mainly administrative unless you make input taxed supplies (where credits are more limited) or you can’t claim credits for some expenses.

Should I Register Before I Hit $75,000?

It depends. If your customers are mainly businesses (who can claim the GST you charge), early registration lets you claim credits on your setup costs. If your customers are mostly consumers and your margins are tight, you might delay registration until you must, to keep sticker prices lower. Monitor your turnover so you register on time.

Do I Charge GST On Overseas Sales?

Exports of goods are usually GST-free if you meet the export rules. Certain services supplied to non-residents may also be GST-free, but you need to check the consumption and documentation requirements. When in doubt, get tailored advice - cross-border GST can be nuanced.

How Do Imports Affect GST?

You’ll usually pay 10% GST on the customs value of imported goods at the border. You can often claim this back as a credit on your BAS if you’re registered and the goods are for your business. Processes and paperwork matter here, so line up your import documentation early and see the overview of GST on importation.

Key Takeaways

• GST is a 10% value-added tax that most Australian businesses collect on taxable sales and report via the BAS.
• You must register if your turnover hits $75,000 (or immediately if you provide ride-sourcing services); voluntary registration can make sense for B2B models.
• Get the basics right: compliant tax invoices, correct GST coding, clear pricing that includes GST for consumers, and reliable record-keeping.
• Know your exceptions: GST-free and input taxed supplies have different rules for charging GST and claiming credits.
• Watch special cases like imports, marketplace sales, RCTIs and crypto payments - set up agreements and processes before you start.
• Strong invoice terms and lawful late fee policies help protect cash flow while keeping you compliant.

If you’d like a consultation on setting up GST processes for your small business, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.