One of the most common questions small business owners ask is whether they need to register for GST. The answer depends on your GST turnover, the type of business you operate and whether special registration rules apply. For many Australian businesses, the key threshold is $75,000 in GST turnover. Not-for-profit organisations generally use a higher $150,000 threshold, while taxi and rideshare providers have special rules that can require registration regardless of turnover.
What Is GST?
Goods and Services Tax is a 10% tax on most goods and services sold in Australia. If your business is registered for GST, you generally include GST in the price of taxable sales and may be able to claim GST credits on eligible business purchases.
GST Registration Changes How You Invoice
Once registered, businesses need to account for GST on taxable sales, issue appropriate tax invoices and keep records that support GST reporting.
GST Registration Also Creates BAS Obligations
Registered businesses generally need to report GST through a Business Activity Statement. The reporting cycle may be monthly, quarterly or, in some circumstances, annual depending on the business and ATO arrangements.
What Is the GST Registration Threshold?
According to current Australian Taxation Office guidance, a business or enterprise generally needs to register when GST turnover is $75,000 or more. Not-for-profit organisations generally use a $150,000 threshold. Businesses that provide taxi, limousine or rideshare passenger travel can have compulsory registration regardless of turnover.
What Does GST Turnover Mean?
GST turnover is not simply the balance in your bank account or the profit shown on your tax return. It is calculated using specific GST rules. Businesses should use current ATO guidance when determining whether they have reached or are expected to reach the threshold.
Current and Projected GST Turnover
The ATO considers both current and projected GST turnover. This means a growing business may need to register before the end of the financial year if it expects turnover to meet the threshold.
What Happens When You Reach $75,000?
If your business reaches the relevant GST turnover threshold, registration becomes important. Current ATO guidance says businesses that reach the threshold generally need to register within the required timeframe. Delaying registration can create extra work because the business may still have GST obligations from the date it should have been registered.
Do You Pay GST on the First $75,000?
A common misunderstanding is that the first $75,000 of business income automatically becomes subject to GST once the threshold is reached. In practice, the relevant issue is when you were required to register and from what date GST applies. Because timing can depend on your circumstances, use current ATO guidance or professional advice when crossing the threshold.
Can I Register for GST Voluntarily?
Yes. Businesses below the compulsory threshold can generally choose to register voluntarily. Voluntary registration may be useful in some situations, but it also creates ongoing responsibilities such as charging GST on taxable sales, lodging BAS and maintaining GST records.
Why Some Businesses Register Voluntarily
- They expect turnover to exceed the threshold soon.
- They want to claim GST credits on eligible business purchases.
- Their customers are mostly GST-registered businesses.
- They want to establish GST processes before rapid growth.
Why Some Businesses Stay Unregistered
- Their turnover is comfortably below the threshold.
- Their customers are mainly consumers and price sensitivity matters.
- They prefer simpler administration while the business is small.
- They have limited GST-bearing expenses.
Can You Charge GST If You Are Not Registered?
No. A business that is not registered for GST should not simply add GST to its invoices. Current ATO guidance is clear that businesses cannot charge and collect GST unless registered. If GST has been charged incorrectly, the business may need to correct invoices and refund the GST amount.
Can You Claim GST Credits If You Are Not Registered?
Generally, you need to be registered for GST to claim GST credits on eligible business purchases. Once registered, valid tax invoices and proper record keeping become important because they support GST credit claims.
What Records Support GST Credits?
- Valid tax invoices
- Receipts for business purchases
- Supplier details
- Evidence the purchase relates to the business
- Correct GST coding in the accounting system
Do Sole Traders Need to Register for GST?
A sole trader is not automatically required to register simply because they have an ABN. GST registration depends on GST turnover and any special rules that apply to the activity.
Does Salary Income Count Toward the GST Threshold?
Salary and wages from employment are generally not part of the GST turnover of a separate sole-trader business. The threshold focuses on business or enterprise turnover, not ordinary employee salary.
Do Rideshare Drivers Need GST Registration?
Taxi and rideshare passenger transport has special GST registration rules. Current ATO guidance states that these providers may need to register regardless of turnover. This is why businesses should not assume the standard $75,000 threshold applies to every activity.
How Do You Register for GST?
Businesses generally need an active ABN and can register through Australian government business services. The process involves confirming the entity, effective registration date and reporting details.
Before Registering, Prepare These Details
- ABN details
- Business structure
- Expected turnover
- Business activity information
- Contact details
- Preferred reporting arrangements where applicable
What Changes After GST Registration?
Registration affects invoicing, bookkeeping, pricing and reporting. Businesses should update their accounting system and make sure sales and expenses are coded correctly.
Update Invoice Templates
Tax invoices should show the required information and clearly identify GST where applicable.
Review Product and Service Tax Settings
Not every transaction has the same GST treatment. Accounting software should be configured correctly rather than applying one tax code to everything.
Start Keeping BAS-Ready Records
Regular reconciliation reduces the amount of cleanup required at BAS time. See our BAS preparation checklist.
What Are the Most Common GST Registration Mistakes?
Waiting Too Long to Monitor Turnover
Owners sometimes only check annual turnover at tax time. A growing business should monitor turnover regularly so registration does not become an emergency.
Confusing Profit With Turnover
GST turnover and business profit are different concepts. A business can have high turnover and low profit.
Charging GST Before Registration
Businesses should not add GST to invoices simply because they expect to register later.
Assuming Every Sale Has the Same GST Treatment
Some supplies can have different GST treatment. Businesses with mixed sales should make sure accounting codes reflect the actual transaction.
Ignoring GST on Expenses
Incorrect expense coding can affect GST credit claims and BAS reporting. Read our common GST coding errors guide.
How Does GST Registration Affect Pricing?
Once registered, businesses need to consider whether quoted prices are GST-inclusive or GST-exclusive. For business-to-business customers that can claim GST credits, the impact may be different from consumer-facing businesses where final price sensitivity matters more.
Business-to-Business Pricing
GST-registered customers may focus more on the pre-GST cost because they may be able to claim credits on eligible purchases.
Business-to-Consumer Pricing
Consumer customers generally focus on the final price they pay, so businesses should plan pricing carefully when GST registration begins.
How Often Should You Check Your GST Turnover?
Growing businesses should review turnover regularly rather than waiting until year-end. A monthly review makes it easier to identify when projected or current turnover is approaching the threshold.
A Simple Monthly GST Review
- Review sales for the current month.
- Check rolling turnover.
- Review expected sales for coming months.
- Identify major contracts or seasonal growth.
- Confirm whether special GST rules apply.
Quick answer
If your GST turnover is approaching $75,000, do not wait until year-end to investigate registration. Review current ATO guidance and prepare your bookkeeping system early so the transition is controlled.
Frequently Asked Questions
Do I need GST registration if my turnover is under $75,000?
Generally, compulsory registration does not apply below the standard threshold unless a special rule applies. Voluntary registration may still be available.
Can I cancel GST registration later?
Cancellation may be possible when eligibility requirements are met. Businesses should check the current ATO rules before cancelling.
Do I need GST registration just because I have an ABN?
No. An ABN and GST registration are separate. GST registration depends on turnover and applicable rules.
Does GST registration mean I need to lodge BAS?
Generally, GST-registered businesses report GST through BAS or the relevant reporting process.
Can Xero or QuickBooks track GST?
Yes, but the software must be configured correctly and transactions still need accurate coding and reconciliation.
Related Guides
- BAS Lodgement Services Melbourne Guide
- Monthly vs Quarterly BAS
- How GST Credits Work
- Bookkeeping Services Melbourne Guide
- Australian Taxation Office GST Registration Guidance
What Should You Do Before Registering?
Before switching GST on in your accounting system, review how your business invoices customers and records expenses. Make sure product or service tax settings are correct, invoice templates are ready and staff understand when GST should or should not be applied. It is also useful to reconcile the books before the effective registration date so pre-registration and post-registration transactions can be separated clearly.
Pre-Registration Checklist
- Confirm the effective registration date.
- Review customer pricing and contracts.
- Update invoice templates.
- Check GST tax codes in Xero, QuickBooks or other software.
- Reconcile bank accounts.
- Organise supplier tax invoices.
- Review whether any special GST rules apply to your industry.
Preparing these items early can reduce errors in the first BAS period and make the change easier for both the business and its bookkeeper.
Get BAS and GST Support
TNS Accounting helps Melbourne businesses maintain accurate books and prepare records for BAS and GST reporting. Contact TNS Accounting to discuss your bookkeeping and BAS support requirements.
