How the Instant Asset Write-Off Works

Every year around June, the instant asset write-off gets a lot of attention, and a lot of confusion. It’s a genuinely useful tax measure for small businesses buying vehicles, tools and equipment, but the way it works catches people out, especially on vehicle purchases. Here’s what it is, how it works, who’s eligible, the traps, and how financing an asset fits in. It’s general information, not tax advice: the threshold and eligibility limits are set by government and change, so the current figures are always the ones on the ATO’s website or from your accountant.

What the instant asset write-off is

Normally, when a business buys an asset that will last several years, it deducts the cost gradually over those years through depreciation. The instant asset write-off lets an eligible small business deduct the business portion of the cost of an eligible asset in full, in the year it’s first used or installed ready for use, rather than spreading it out. The effect is to bring the deduction forward, which reduces taxable income in the year of purchase and helps cash flow.

It’s worth being clear about what it isn’t: it’s a timing benefit, not a cash grant. The deduction reduces the tax you’d otherwise pay; it doesn’t put the asset’s cost back in your pocket.

Who can use it

The write-off is available to businesses that fall under the ATO’s aggregated turnover limit for small business and that use the ATO’s simplified depreciation rules. That includes sole traders, partnerships, companies and trusts that carry on a business in Australia, so “can a sole trader use the instant asset write-off?” has a simple answer: yes, if the business meets the criteria. Aggregated turnover counts your business together with any affiliated or connected businesses, which is where some owners are surprised. Our guide to how your business structure affects finance covers the structures involved.

How the threshold works, and the trap in it

The write-off applies to assets costing less than a threshold set for the year, and it applies per asset, so a business can write off several eligible assets in a year provided each one is under the threshold. Both new and second-hand assets qualify.

The trap is this: the threshold is tested against the total cost of the asset, not the business-use portion. If a vehicle costs more than the threshold, it can’t be written off under this measure even if the business-use share of its cost would have been under it. The ATO’s own example makes the point: a ute bought for more than the threshold, used partly for business, gets no instant write-off; the business portion goes into the small business depreciation pool and is deducted over time instead. Plenty of work vehicles sit above the threshold, so check the total cost against the current figure before assuming the write-off applies.

There’s a separate point on how the cost is measured: it’s assessed differently depending on whether your business is registered for GST, so that’s one to confirm with your accountant.

The car limit

Passenger cars have their own cap. The ATO applies a car limit to the cost of a car for depreciation purposes, indexed each year, and it applies even where the instant asset write-off would otherwise allow a larger deduction. So an expensive car bought for business is capped at the car limit for the write-off, and the excess isn’t deductible through depreciation. Utes and vans designed to carry a load, rather than passengers, are generally treated differently from cars, but the classification depends on the vehicle’s specifications, which is another point for your accountant. We’ve covered the wider tax picture on vehicles in business car tax deductions.

Timing: “first used or installed ready for use”

The deduction belongs to the income year in which the asset is first used or installed ready for use for a taxable purpose, not the year you ordered or paid for it. This matters at the end of a financial year: an asset ordered in June but not delivered and ready to use until July is deducted in the later year. If you’re timing a purchase around the financial year, delivery and installation are what count.

How financing fits in

Financing the asset doesn’t affect eligibility. Whether you pay cash, use a chattel mortgage, or finance it under equipment finance, the write-off turns on the asset’s cost, its business use and when it’s first used, not on how it’s paid for. Under a chattel mortgage you own the asset from day one, which is the structure most businesses use when they intend to claim it. A lease is different, because the lender owns the asset, so the tax treatment is different; our guide to finance lease vs hire purchase explains the distinction.

The practical benefit of combining the two is cash flow: the finance spreads the purchase over its working life, while the write-off brings the deduction forward. For businesses that can’t provide full financials, low doc business loans are common for exactly these purchases.

Is the instant asset write-off still available?

Yes. The threshold and eligibility limits have changed several times over recent years, which is the source of most of the confusion, and in 2026 the government legislated to make the measure an ongoing feature from the start of the 2026–27 income year. The current threshold and turnover limit are published on the ATO’s website; because they’ve changed before, the figure you’ve heard from a mate or read in an old article may not be the one that applies to your purchase.

What to have ready

• The tax invoice, showing the price, supplier and date
• A record of when the asset was first used or installed ready for use
• Records supporting the business-use percentage, such as a logbook for a vehicle
• Confirmation from your accountant that your business is eligible and using the simplified depreciation rules

Getting the purchase right

The write-off is a reason to buy an asset the business needs; it isn’t a reason to buy one it doesn’t. The deduction reduces tax on the cost, it doesn’t eliminate the cost, and the vehicle-specific traps above catch people who buy first and check later. Talk to your accountant about eligibility and timing, and to a broker about structuring the finance to suit. Our equipment finance and business loans pages set out what we arrange, and our guide to asset finance covers how it all fits together.

This article is general information only and is not tax, legal or financial advice. Thresholds, turnover limits and the car limit are set by government and change; confirm the current figures and your eligibility with your accountant or on the ATO website before acting.

Damo Treadgold is the director of Treadgold Finance, an FBAA-accredited finance broker on the Sunshine Coast, arranging equipment, vehicle and business finance Australia-wide.

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