Side Hustle Tax in Australia: What You Actually Have to Declare

💰 The golden rule: all income is taxable🔗

The ATO is clear: if you earn income, you must declare it. It doesn't matter if you're paid in cash, only made a few hundred dollars, run it from your couch, or never got a payment summary. The obligation to declare is on you, not on whoever paid you. This covers Airbnb and short-term rentals, Uber and rideshare including tips, Etsy and online selling, freelance work, gig economy jobs, regular Facebook Marketplace selling, and even crypto staking rewards and airdrops. Running an Etsy shop has its own wrinkles, listing fees, COGS on handmade stock, USD conversions, covered in full in our Etsy seller tax guide. If you're just clearing out old stuff rather than running a resale operation, the rules are more forgiving, see our dedicated guide on tax on selling stuff online. Content creators earning from YouTube, Twitch or Patreon face the same golden rule, plus a few platform-specific wrinkles like USD conversion and gifted products, covered in our YouTube, Twitch and Patreon income tax guide. One-off payments like referral bonuses and cashback sit a bit differently again, they're not really a side hustle, and the ATO guidance is thinner still. Our guide to whether referral bonuses are taxable in Australia walks through the same hobby vs business logic applied to that specific grey area. Affiliate marketing is a common side hustle in its own right, promoting products through Amazon Associates, ShareASale or similar and earning a commission, our affiliate marketing tax guide covers the ABN, GST and USD-commission specifics. Task-based gig platforms like Airtasker follow the same golden rule too, our guide to making money on Airtasker in Australia covers how the platform's fees work alongside the tax basics.

🧭 Hobby or business? The multi-factor test🔗

🎯 The essential: There is no income threshold that makes something a hobby. Earning $500 doesn't make you safe, earning $50,000 doesn't automatically make you a business. The ATO looks at the nature of the activity.

A hobby is something done for personal enjoyment, where making money isn't the primary goal and there's no real expectation of profit. Hobby income isn't taxable, but hobby expenses aren't deductible either.

A business is assessed on a weight-of-evidence basis: do you intend to make a profit, do you operate in a commercial, business-like manner (records, a separate bank account), advertise to the general public, repeat the activity continuously, and operate at a scale sufficient to generate profit. No single factor decides it, the more that apply, the more likely it's a business. Once your turnover climbs, keep an eye on the $75,000 GST registration threshold too, it's a separate obligation from simply being classified as a business.

📝 Where to declare it🔗

🧾 What you can deduct🔗

If you're running a business, you can claim expenses directly related to earning your income, platform fees and commissions, equipment and tools, vehicle expenses, home office costs, marketing, and the cost of managing your tax affairs. The expense must be incurred in earning your assessable income, personal expenses don't count, and mixed-use expenses like a phone used for both personal and business need to be apportioned to the business-use percentage only.

If you're classified as a hobby, nothing is deductible, one of the key reasons the hobby vs business distinction actually matters.

📉 Business losses: the non-commercial loss rules🔗

If your side hustle makes a loss, you can't automatically offset it against your salary. To claim it in the current year (with taxable income under $250,000), you need to pass one of four tests: assessable income of at least $20,000, profitable in 3 of the last 5 years, real property used in the business worth at least $500,000, or other assets used worth at least $100,000. Fail all four and the loss is deferred to a future profitable year rather than lost.

🗂️ Record-keeping🔗

Keep records for five years from when you lodge your return, bank statements, platform payment summaries, receipts for every expense claimed, and a logbook if claiming vehicle expenses. No receipt generally means no deduction.

❓ Frequently asked questions🔗