Arborist Tax Accountant Australia | Maximise Deductions & Minimise Tax

Most arborists we meet are leaving between $4,000 and $18,000 on the table every tax year. Not because they’re careless — because tree work is one of the most deduction-heavy trades in Australia, and a generalist accountant who mainly does cafes and consultants simply doesn’t know what to ask. Chainsaws, climbing kit, fuel for off-road chippers, PPE replacements every 6 months, short-course training, insurance stacking, vehicle logbooks across a ute and a trailer — if any of those aren’t on your last return, your accountant is costing you money.

Arbour Advisory is a chartered accounting practice built specifically for arborists and tree care businesses. We lodge tax returns, BAS and instalments for sole trader climbers, small crews and multi-truck tree companies across Australia. This page walks you through exactly what a specialist arborist tax accountant looks at — so even if you don’t engage us, you’ll know what to ask your current accountant before you sign off on this year’s return.

Common arborist tax deductions most accountants miss

The ATO is generous with legitimate business deductions — but you have to claim them, and you have to be able to substantiate them. Here are the categories we review on every arborist return:

Chainsaws, pole saws and hand tools: Fully deductible under instant asset write-off (currently $20,000 per asset for small businesses in the 2025–26 year). Spare bars, chains, files and bar oil are consumables and deductible in full.
Climbing and rigging kit: Ropes, harnesses, friction savers, carabiners, slings, rigging plates, blocks. The ANSI/AS replacement schedule means most climbers replace gear every 3–7 years. Keep the receipts — this adds up fast.
PPE and workwear: Chainsaw chaps, cut-resistant trousers, helmets with visors and ear defenders, steel caps, gloves, high-vis. Compulsory protective clothing is deductible; ordinary work clothes are not.
Training and certification: AQF Level 3 and 5 courses, refresher training, EWP ticket, chainsaw operator tickets, first aid, chemical handling. Self-education costs that maintain or improve your current income-earning activity are deductible.
Insurance: Public liability, professional indemnity, income protection (deductible as an individual), workers comp premiums, tool insurance, commercial vehicle insurance.
Vehicle running costs: Fuel, servicing, rego, tyres, finance interest, depreciation — apportioned by logbook percentage.
Subcontractor payments: Fully deductible, but triggers TPAR lodgement obligations.
Home office and admin: A shortcut 67c/hour rate or actual-cost method if you run quoting and admin from home.
Fuel tax credits: Often missed. Diesel used in off-road equipment — chippers, stump grinders, mini loaders — attracts a fuel tax credit that offsets GST on your BAS.

Instant asset write-off for arborist equipment — 2026 thresholds

For the 2025–26 financial year the instant asset write-off threshold is $20,000 per asset for small businesses with aggregated turnover under $10 million. That’s per asset, not per year — so if you buy a $19,000 chipper, a $14,000 stump grinder and a $6,000 climbing kit upgrade in the same year, all three are written off in full in the year of purchase.

Anything over $20,000 — a new chip truck, a larger chipper, an EWP — goes into the general small business pool and depreciates at 15% in year one, 30% thereafter. The asset must be installed ready for use by 30 June to claim it that year. We’ve seen arborists lose the full deduction simply because the chipper was still on a delivery truck on 1 July. Plan your purchases around this date.

If you finance the equipment on chattel mortgage, you still get the full upfront write-off (or pooling) even though you’re paying it off over 3–5 years. On a lease or rental, the rules differ — leases are generally deductible as rental payments and don’t qualify for the write-off. If you’re unsure which finance structure suits your situation, our equipment finance page breaks it down in detail.

GST on tree services — what attracts GST and what doesn’t

Once your turnover exceeds $75,000, GST registration is compulsory. For arborists, effectively every service you sell attracts 10% GST:

Tree removal and felling — GST applies
Pruning, crown reduction, crown lifting — GST applies
Stump grinding — GST applies
Emergency storm work and callouts — GST applies
Mulch and firewood sales — GST applies
Arborist reports and tree health assessments — GST applies
Consulting and court reports — GST applies

The only grey area is insurance claim work where the insurer is the payer — you still charge GST on your invoice, but the insurer usually pays GST-inclusive and claims it back through their own BAS. Make sure every quote you issue is clearly marked “plus GST” or “GST inclusive” — mixing the two in the same week is how arborists end up under-remitting GST and getting an ATO amendment letter 18 months later.

Vehicle logbook — the deduction arborists forget to maximise

You get two choices for claiming vehicle expenses: cents-per-kilometre (capped at 5,000 business km/year at 88c in 2025–26, so $4,400 max) or the logbook method. For an active arborist running a ute and a chip truck, the cents-per-km method is almost always the worse option.

The logbook method requires a 12-week continuous logbook every 5 years establishing your business-use percentage. Typical arborists land between 75% and 95% business use. You then claim that percentage of every vehicle cost — fuel, servicing, rego, CTP, insurance, tyres, finance interest, depreciation. For a ute worth $65,000 with 85% business use, annual deductions commonly exceed $18,000. That’s the difference the logbook makes.

Keep odometer readings at 30 June every year and hold on to fuel and service receipts. A logbook app (Driversnote, LogbookMe, GOFAR) makes the 12-week compliance period painless.

Superannuation — sole trader vs PTY LTD

Sole trader arborists have no compulsory super obligation to themselves — which sounds great until you hit 55 and realise you’ve got nothing set aside. Voluntary concessional contributions up to $30,000/year (2025–26 cap) are fully tax-deductible. For a sole trader on a $140,000 taxable income, contributing $25,000 to super saves roughly $6,500 in tax while building retirement wealth.

If you operate through a PTY LTD, you’re an employee of your own company, so Super Guarantee applies — 12% of your wage from 1 July 2025. You can also make additional salary-sacrifice contributions up to the $30,000 cap. Company structures give you better control over the timing and quantum of super contributions, which matters enormously in high-income years.

BAS and IAS lodgement schedule

Most arborist businesses lodge BAS quarterly: Q1 due 28 October, Q2 due 28 February, Q3 due 28 April, Q4 due 28 July. If you lodge through a registered tax or BAS agent you typically get a 4-week extension on each due date. Arborists with turnover over $20 million (rare but it happens on large council contracts) lodge monthly.

PAYG income tax instalments come in on the same form. The ATO estimates your liability based on last year’s tax — if your income has dropped (slow winter, injury, lost a major contract) you can and should vary the instalment down to avoid tying up cash unnecessarily.

When to engage a specialist tax accountant

Honestly? The moment your turnover passes $150,000 or you buy your first piece of equipment worth more than $20,000. Below that, a $550 annual return from a generalist probably covers you. Above that, the deductions, the GST complexity, the equipment finance decisions and the structure questions compound — and one missed call costs more than a year of specialist fees.

A specialist arborist tax accountant should be able to answer, without hesitation: what’s the ATO ruling on chainsaw chain replacements as consumables vs depreciable assets? What’s the fuel tax credit rate for off-road diesel in stump grinders this quarter? Should I buy my next chipper through the trust or the company? If your current accountant pauses on any of those, it’s time to switch.

Ready to stop overpaying tax? Book a free 30-minute consultation with George Morice CA and we’ll walk through your last tax return to find what was missed. No obligation, no sales script — just a genuine second opinion from an accountant who only works with arborists and tree care businesses.

Frequently Asked Questions

How much does an arborist tax accountant cost in Australia?

A specialist arborist tax return from a chartered accountant typically costs $550–$1,200 for a sole trader and $1,400–$2,800 for a company or trust structure. Fixed monthly packages including BAS, bookkeeping and tax start at $385/month for sole traders and $750–$1,500/month for small crews.

What tax deductions can arborists claim in Australia?

Arborists can claim chainsaws and climbing kit (often under the $20,000 instant asset write-off), PPE and protective workwear, training and certification, insurance premiums, vehicle running costs via logbook, subcontractor payments, home office costs, and fuel tax credits on off-road diesel used in chippers and stump grinders.

What is the instant asset write-off threshold for arborist equipment in 2026?

For the 2025–26 financial year, the instant asset write-off is $20,000 per asset for small businesses with aggregated turnover under $10 million. Assets must be installed ready for use by 30 June to claim in that year. Assets over $20,000 go into the small business general pool.

Do arborists charge GST on tree services?

Yes. Once turnover exceeds $75,000 GST registration is compulsory, and all standard arborist services attract 10% GST — tree removal, pruning, stump grinding, emergency work, mulch and firewood sales, arborist reports and consulting.

Can I claim my ute as an arborist tax deduction?

Yes, via the logbook method. A 12-week continuous logbook every 5 years establishes your business-use percentage (typically 75–95% for active arborists). You then claim that percentage of fuel, servicing, rego, insurance, depreciation and finance interest. For most arborists this produces a far larger deduction than the cents-per-km method.