When the ATO wants to picture an employee's tools, it reaches for a chef's knives, which shows how settled this deduction is. A gyuto, a boning knife, a thermometer, the roll they ride in: you bought them because the line could not run without them, so the spend is genuinely yours to claim. What snags cooks is never whether the kit counts. It is the timing, and a single rule about buying a set in one hit. Get the $300 mark and the set rule straight, and everything else about your knife spend clicks into place.
The $300 line
The cost of a piece of kit decides how you claim it, and that mechanic sits under every other point below.
The full price lands on this year's return. One paring knife, a thermometer, a peeler, a microplane, a set of tongs: anything under the mark comes off in one hit.
You write down its decline in value over its working life. A premium chef's knife or a cast-iron pan above the mark is claimed this way, a portion at a time.
Split out private use and part-year ownership. Cook with a knife at home on your days off and you claim only the work slice; buy it midway through the year and only the days you owned it count. Cooks slip up in two opposite ways: writing off a $420 chef's knife all at once when it has to be spread, and leaving a $360 pan off entirely on the belief that anything above the mark cannot be claimed. It can be, just gradually.
The knife-roll set trap
This rule is the one that catches chefs, because it shuts down the obvious dodge. You cannot slip past the $300 mark by picking up an expensive roll one cheap knife at a time in a single purchase.
A boxed roll of eight knives at $70 each is $560. Bought together, that is one set over $300, so no instant write-off.
A set, or a bundle of knives you begin holding together in the same year, that tops $300 all up has to be depreciated even when each blade in it is cheap. That is straight from the ATO's own reasoning. Buying separately is a different story. Add a filleting knife months later at $300 or under on its own and that one comes off in full the year you buy it, since it was never part of a set. Build the roll knife by knife and each purchase stands alone; grab the boxed set in one hit and the lot gets spread.
A knife over $300 keeps giving
A chef's knife above the mark does not begin and end on a single return. Every year you keep claiming that year's portion of its decline in value, right up until its value has run down to zero, and that is the bit cooks forget once the purchase is a couple of Julys back. That Japanese knife from two seasons ago still has value left to claim now, so carry it onto this return rather than leaving it in the year you paid. The number is drawn from what value is left in the knife and how long it is meant to last, and the ATO's depreciation tool does the arithmetic.
Sharpening, insurance, the roll
The $300 mark is about buying a knife. It has nothing to say about keeping one sharp, insuring one or carrying one, and each of those is its own deduction.
The write-off that isn't yours
Generic tax pieces love pushing the instant asset write-off, which for a chef on wages is a trap. That rule is not yours.
Under the instant asset write-off a small business can deduct an asset outright, capped at a figure the ATO sets, and the whole thing hinges on business turnover. It belongs to ABN businesses, not to employees drawing a wage. As a PAYG cook your rule is the one on this page: under $300 in one hit, over $300 spread, a set weighed as a whole. That write-off cap doing the rounds online is not for you. And if you are not sure whether you are an employee or working under an ABN, that question rewrites what deductible means for everything, not just knives, so the employee-or-ABN chapter settles it.
What the kitchen already supplies
You only ever claim what you paid for. In a working kitchen most of the heavy gear is the venue's, and none of it belongs on your return.
The records behind a knife claim
Every line above rests on the receipt beneath it, and a kit-heavy claim is exactly where the paper trail springs a leak.
- A receipt for every knife and tool. Date, supplier, item and price, held five years, plus the invoice each time the roll goes out for sharpening.
- A note of any work-use split on anything you also cook with at home, since that split draws the first question.
- Records across the board once your total work claims pass $300 for the year, not just the pricey knives.
The bottom line
Rank every piece of kit by price. Under $300 comes off in one hit, over $300 spreads across its life, and a roll bought as a set is weighed whole however cheap the individual knives. Keep drawing down last year's knives until they hit zero, fold in the sharpening, the steel, the cover and the roll, and hand the instant asset write-off back to the businesses it was made for. Claim what you paid for, never the venue's ovens and benches. Do that with receipts behind you, and your knife spend settles onto your return where it belongs.
See what your knives, sharpening, cover and the rest add up to on your return.
General information only, not tax advice. Check the ATO or a registered tax agent for your situation.