If you’re earning money from a side hustle, whether it’s through ridesharing, online sales, or freelancing, the Australian Taxation Office (ATO) expects you to report it. Any income you make from goods or services provided for payment is taxable and needs to be included in your individual tax return.
The ATO’s data-matching tools are more advanced than ever. With the Sharing Economy Reporting Regime (SERR) in place, platforms like Uber, Airbnb, Etsy, and YouTube now share user earnings directly with the ATO. If you’ve earned it, they probably already know about it.
So instead of worrying about getting caught, it’s smarter to focus on understanding your tax obligations and claiming every deduction you’re legally entitled to.
When Does a Side Hustle Become a Business?
Not every side hustle starts as a business, but many grow into one without people realising it. The ATO decides based on your actions, not your intentions.
Key Signs You’re Running a Business
- You’re aiming to make a profit, not just cover costs.
- You trade regularly or advertise your products or services.
- You keep records, use a business name, or hold stock.
- You operate in a business-like way, with systems and organisation.
If your activity ticks several of these boxes, it’s treated as a business. That also opens the door to claiming more deductions.
Example
Alex started doing pet portraits for fun but soon began charging for commissions through Instagram. Once orders became regular and payments increased, Alex was effectively running a business, meaning all earnings had to be reported, but legitimate business costs, such as art supplies and printing, could be claimed too.
Do You Need an ABN or to Register for GST?
You’ll likely need an Australian Business Number (ABN) once your side hustle looks and operates like a business. It’s required to issue invoices and helps you access business deductions.
There’s no set income threshold for getting an ABN, but it’s worth having if you’re trading regularly or working with clients who may withhold tax otherwise.
You must also register for GST once your total turnover exceeds $75,000 in a financial year. Registration must occur within 21 days of passing that threshold. Many side hustlers underestimate their growth and end up registering late, which can attract penalties.
How to Report Side Hustle Income on Your Tax Return
If you operate as a sole trader, report your side hustle income in your individual tax return under “Business or Professional Items.”
You’ll need to include:
- All income earned
- Work-related and business expenses
- GST collected and paid (if applicable)
Once your side hustle generates a tax liability over $1,000, you may be added to the PAYG instalment system, meaning you’ll pay quarterly rather than facing a large lump-sum bill at year-end.
Deductions You Can Claim for Your Side Hustle
Declaring your side hustle income means you can also claim expenses directly linked to earning it.
Common Deductible Expenses
- Equipment such as laptops, cameras, or tools
- Advertising, platform fees, and website costs
- Materials and stock used for your goods or services
- Vehicle costs (fuel, insurance, servicing), business-use only
- Home office expenses (internet, power, stationery)
- Professional services like tax advice or accounting
Keep in mind that only the business-related portion of any cost is deductible. If you use your phone for both personal and business purposes, you can only claim the business percentage.
The Importance of Records
Good record-keeping makes all the difference. Hold onto:
- Invoices, receipts, and bank statements
- Mileage or travel logs for business trips
- Asset purchase records
- Proof of income from all platforms
You must keep these records for five years after lodging your return. Digital copies are fine as long as they’re clear and accessible.
What Happens If You Don’t Declare Side Hustle Income?
Failing to report income is risky. The ATO uses advanced data-matching technology to identify undeclared earnings. If caught, you could face interest charges, back taxes, and penalties up to 75% of the unpaid tax.
If you’ve already left out side hustle income from previous years, it’s better to voluntarily disclose it. The ATO is usually more lenient when you come forward first.
Reducing Your Tax Through Smart Planning
You can’t avoid tax entirely, but you can manage it smartly.
Simple Tax Planning Tips
- Keep business and personal accounts separate.
- Track expenses throughout the year.
- Plan major purchases (like equipment) before 30 June.
- Set aside a percentage of income for tax payments.
- Consider voluntary super contributions for deductions and savings.
When your side hustle starts bringing in more than $50,000 annually, it’s a good idea to speak with an accountant about whether a company or trust structure might be more tax-efficient.
Common Side Hustle Tax Mistakes
Avoiding these traps can save you time and money later:
- Treating regular earnings as “just a hobby.”
- Mixing personal and business expenses.
- Forgetting to register for GST once turnover hits $75,000.
- Claiming 100% of shared expenses like internet or car use.
- Ignoring small cash payments (they’re taxable too).
Keeping clear records and getting professional help early can prevent expensive corrections down the track.
When to Seek Professional Advice
If your side hustle income is growing or becoming more complex, seeking professional help can make a big difference. A qualified accountant can:
- Determine if you’re running a business or hobby
- Register your ABN or GST correctly
- Identify all legitimate deductions
- Handle PAYG instalments and BAS lodgements
- Assist with ATO audits or record-keeping setup
Professional fees for tax advice are tax-deductible, and they often save you more than they cost.
FAQs
1. Do I need to declare small earnings under $500?
Yes. All income must be declared, no matter how small. There’s no minimum threshold in Australia.
2. What if my side hustle made a loss?
If you’re genuinely running a business, you can claim losses to offset other income. There are rules about non-commercial losses, so check with your accountant.
3. How does my side hustle affect my main job’s tax?
Your side hustle income adds to your total taxable income. It might push you into a higher bracket, meaning your employer’s tax withholding could fall short.
4. Can I claim deductions for equipment I also use personally?
Yes, but only the business portion. Keep a log or estimate based on usage.
5. What happens if I forgot to report income last year?
Make a voluntary disclosure through the ATO or your accountant. Coming forward first usually leads to smaller penalties.
Final Thoughts
A side hustle is a fantastic way to earn extra money and explore your skills, but the tax side of things needs attention. The ATO’s systems are sophisticated, and it’s safer (and often more profitable) to be upfront and organised.
With the right planning, you can stay compliant, reduce your taxable income, and keep more of your hard-earned money.
Take Control of Your Side Hustle Tax with Clear Tax Accountants
At Clear Tax Accountants, we help Australians just like you get their side hustle tax right, from registering an ABN and claiming deductions to planning ahead for growth.
Our experienced accountants know how to make sure you stay compliant while maximising every allowable deduction. Whether you’re a rideshare driver, content creator, or small business owner, we’ll simplify your taxes and help you plan smarter for the year ahead.
Ready to get started?
Book a consultation with Clear Tax Accountants today, and let’s make your side hustle work for you, not against you at tax time.
Visit www.cleartax.com.au or call 1300 417 143 to speak to an advisor near you.
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