Quick answer: A tax write-off, also called a tax deduction, is a business expense the ATO lets you subtract from your assessable income, so you are taxed on a smaller profit. If your business earns $100,000 and has $30,000 of deductible expenses, you pay tax on $70,000, not the full amount. A write-off is not free money or a dollar-for-dollar refund, it lowers the income your tax is calculated on. The $5,000 motor vehicle write-off below was a specific 2012 Federal Budget measure; the evergreen rules for claiming write-offs are explained first.
What is a tax write-off?
A tax write-off is any legitimate business expense you are allowed to deduct from your income before tax is worked out. Common write-offs for Australian small businesses include tools and equipment, vehicle running costs for business use, software subscriptions, home office costs, professional fees, insurance and staff wages. The rule the ATO applies is simple in principle: the expense has to be genuinely incurred in running the business, and you need a record to prove it.
One of the most useful write-offs for small business is the instant asset write-off, which lets eligible businesses claim an immediate deduction for the full cost of a qualifying asset in the year it is first used or installed ready for use, rather than depreciating it over several years. The threshold is set by the government and changes from year to year, so check the current limit before you buy. For anything above the threshold, or where eligibility is unclear, a bookkeeper or BAS agent can make sure it is coded correctly in Xero so the deduction actually lands.
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Frequently Asked Questions
What is a tax write-off?
A tax write-off, or tax deduction, is a business expense you subtract from your assessable income so you are taxed on a smaller profit. It lowers the income your tax is calculated on, rather than refunding tax dollar-for-dollar. To claim one, the expense must be genuinely incurred in running the business and you must keep a record of it.
What can a small business write off on tax in Australia?
Common deductible expenses include tools and equipment, business-use vehicle costs, software subscriptions, home office expenses, professional and accounting fees, insurance, and staff wages and super. Eligible assets can often be claimed immediately under the instant asset write-off, up to the threshold set by the government for that year.
Does a tax write-off mean I get the money back?
No. A write-off reduces your taxable income, not your tax bill directly. If you spend $1,000 on a deductible expense and your tax rate is 25%, you save $250 in tax, not the full $1,000. It still pays to claim everything you are entitled to, but a write-off is a reduction in tax, not a refund of the whole cost.