Airbnb Tax in Australia: Income, Deductions and the CGT Trap
Renting on Airbnb in Australia? Learn what income to declare, what you can claim, and the main-residence CGT trap that catches most hosts.
By Timothy Hirou GaschereauPublished 12 min read
Renting out a spare room on Airbnb feels like found money: a long weekend here, a week there, and suddenly you have covered the rates bill or funded a holiday. What is not to love? Plenty, if you ignore the tax side. This is your plain-English guide to Airbnb tax in Australia.
The ATO has built a data pipeline straight from sharing-economy platforms, so it knows what you earned before you have even opened your tax return. This guide covers what to declare, what you can claim, the CGT trap that bites most hosts on the way out, and the one rule that can save whole-home renters serious money. It is general information only, not tax advice.
🎯 The essential: Airbnb income is rental income: declare all of it, taxed at your marginal rate (the ATO gets platform data). Deductions must be apportioned by BOTH space (the room's share) and time (weeks rented). The big trap: renting out part of your home partly loses your main-residence CGT exemption, a bill you only see when you sell. Whole-home renters may keep it via the 6-year rule. GST is generally not an issue (input taxed).
Airbnb income is rental income: declare everything
No minimum threshold, no sharing-economy carve-out. Money you earn renting a room or a whole property on Airbnb, Stayz or similar is assessable income, added to your other income and taxed at your marginal rate. Airbnb gives you an earnings summary, but the bigger point: since 1 July 2023 the Sharing Economy Reporting Regime requires platforms to report host income directly to the ATO twice a year. The ATO has your numbers before you lodge, so omitting income is a red flag, not an oversight. Our tax on rental income guide covers the general rules.
Deductions: apportion by space and by time
You can claim a range of expenses, but for a rented room you must apportion two ways at once: by space (the room's floor area as a percentage of the home, plus a share of common areas) and by time (the proportion of the year it was rented or genuinely available).
After apportioning, deductible items include mortgage interest, council rates, water, insurance, electricity and gas, internet, depreciation on furnishings in the rented area, cleaning, platform service fees, and guest consumables. Expenses that relate only to the rental (platform fees, guest cleaning, guest consumables) are fully deductible for the rental period without a floor-area split. Keep every receipt.
The big trap: capital gains tax on your main residence
This section could be worth tens of thousands of dollars. Most Australians know their home is exempt from CGT when they sell. What most hosts do not realise: renting out part of your home, even one room, even for a few months, permanently reduces that exemption for the portion and period used to earn income.
When you sell, the ATO apportions your gain by the floor area rented and the days it was rented across your total ownership. Example: own a home 10 years, rent a room (20% of floor area) for 3 of them, and roughly 6% of the gain can be assessable. On a $500,000 gain that is about $30,000, or ~$15,000 after the 50% CGT discount. Real money. See our CGT on property guide and the main residence exemption.
It is not a penalty, just the consequence of using a CGT-exempt asset to earn income. If you plan to sell in the next year or two, run the numbers with a registered tax agent before you list: for many hosts it is still worth it, but for those sitting on large gains the CGT cost can outweigh the income.
The 6-year absence rule
A genuine lifesaver for hosts who move out and rent the whole property. If you move out of your main residence and rent it entirely, you may treat it as your main residence for CGT for up to 6 years, keeping the full exemption if you sell within that window. Conditions: it must have been your main residence first, and you must not treat another property as your main residence during that period (moving back in resets the clock). Useful for people who relocate for work or travel. Critically, it only applies to whole-home rentals: if you still live there and rent a room, you are not “absent” and the rule does not apply.
GST: generally not your problem
Most hosts do not charge GST and do not need to worry about it. Renting residential premises for short stays is generally an input-taxed supply: you do not charge GST, that income does not count toward the $75,000 GST threshold, and the trade-off is you cannot claim GST credits on expenses. The exception is commercial residential premises(hotel or B&B style, with reception, regular linen, many rooms), which can be a taxable supply where GST applies. Running a large-scale short-stay operation? Check with a tax agent.
Records and the practical takeaway
Keep a log of nights rented, a floor plan showing the rented area, all receipts, platform statements and loan statements. General tax records: at least five years. CGT records: for as long as you own the property plus five years after selling, potentially decades. The bottom line: the extra income is genuinely useful, but it is not free money. Weigh the future CGT cost on your main residence before you host, and run the numbers with a registered tax agent before you list, not after you sell.
| Scenario | What you apportion | CGT impact | 6-year rule? |
|---|---|---|---|
| Renting a room (you still live there) | Space AND time | Partial loss of the main-residence exemption | No |
| Renting the whole home (you move out) | All expenses for the rental period | Potential full loss, unless the 6-year rule applies | Yes, up to 6 years |
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❓ Frequently asked questions
Do I pay tax on Airbnb income in Australia?
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Yes. All income you earn renting your property on Airbnb or similar is assessable income taxed at your marginal rate. There is no minimum threshold and no sharing-economy exemption. You must declare it in your annual tax return, and the ATO already receives platform data.
What can I claim as an Airbnb host?
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A portion of expenses that relate to earning the rental income: mortgage interest, council rates, water, insurance, electricity, gas, internet, cleaning, platform fees and guest consumables. Most must be apportioned by floor area and time rented. Expenses solely for the rental (platform fees, guest cleaning) can be claimed in full for that period.
Does renting on Airbnb affect my main residence CGT exemption?
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Yes, it can. Renting out part of your home reduces the main residence CGT exemption for the portion used to earn income and the period it was rented. When you sell, the ATO apportions the gain by floor area rented and days rented across your ownership. The 50% CGT discount still applies if you owned it more than 12 months.
Do I have to charge GST on Airbnb?
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Generally no. Renting residential premises for short stays is an input-taxed supply, so you do not charge GST and the income does not count toward the $75,000 GST registration threshold. The trade-off is you cannot claim GST credits on expenses. Hotel or B&B-style operations (commercial residential premises) can differ, so check with a tax agent.
What is the 6-year rule for Airbnb hosts?
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If you move out of your main residence and rent the WHOLE property, you may treat it as your main residence for CGT purposes for up to 6 years, preserving the full exemption if you sell within that window, provided you do not nominate another main residence. It resets if you move back in. It does not apply to renting out a room while you live there.
How do I apportion Airbnb expenses?
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For a rented room, apply two cuts at once: the room's floor area as a percentage of the home (plus a share of common areas), and the proportion of the year it was rented or available. Multiply them. A room that is 15% of the home rented for half the year gives a deductible proportion of 7.5%.
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📚 Recommended reading
The Barefoot Investor
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Making Money Made Simple
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Some links above are affiliate links. If you buy through them, Snowball Invest may earn a small commission at no extra cost to you. We only recommend books we'd suggest anyway.
Sources
This article is general information only, not tax advice. Rental, CGT and GST rules are set by the ATO and can change, and your situation will differ from the examples used here. Always check the ATO or a registered tax agent before you host or sell.
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General information only. This article is educational and does not constitute personal financial advice. It does not account for your circumstances. Consider your own situation and seek advice from a licensed adviser before acting. Read our full disclaimer.
Timothy Hirou Gaschereau
Founder of Snowball Invest, not a financial adviser.
I write about what I'm learning myself, because nobody ever taught us how to take control of our own money. It's a skill, not a mystery, and it's never too late to learn it. The best day to start was yesterday, the second best is today.
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