You have signed the finance contract for the new truck or excavator, the asset is on site, and the first repayment has hit your account. Then tax time rolls around and your accountant asks the equipment finance depreciation question that throws most Aussie business owners: how do you want to depreciate it?
That question sounds simple. It is not. The answer depends entirely on which finance structure you chose, and whether you actually own the asset for tax purposes. Get your equipment finance depreciation right and you accelerate deductions, free up cash flow, and keep the ATO happy. Get it wrong and you either miss out on legitimate deductions or claim things you cannot claim, which gets unpleasant fast.
This guide walks through the seven rules that govern equipment finance depreciation in Australia. We are not accountants and this is not personal tax advice. But after years of matching Aussie business owners with truck and equipment finance, the same questions come up over and over. Here are the straight answers without the accounting jargon.
Why Finance Type Drives Your Equipment Finance Depreciation Story
Depreciation under Australian tax law is governed by Division 40 of the Income Tax Assessment Act 1997. The headline rule is this: only the holder of a depreciating asset can claim a deduction for its decline in value. The ‘holder’ is usually the legal owner, but the rules can treat someone else as the holder where they carry the economic risk and benefit of ownership.
That single concept is why the type of finance you use changes everything about your equipment finance depreciation position. A chattel mortgage and a finance lease can fund the exact same truck, used the exact same way, and produce wildly different tax outcomes. One puts the asset on your books and lets you depreciate it. The other does not.
So before any conversation about effective life, prime cost, diminishing value or the instant asset write-off can start, you need to know what kind of contract you have signed. The structure decides whether you depreciate the asset, deduct rentals, or claim something else entirely. Our deeper breakdown on chattel mortgage vs lease vs hire purchase covers the structural differences if you want the full comparison.
Equipment Finance Depreciation: Tax Rules vs Accounting Rules
There are two parallel sets of depreciation rules running in most Aussie businesses, and they do not always agree. Both matter for your equipment finance depreciation outcome, but in different ways.
Tax depreciation is what you claim against the ATO under Division 40 or the simplified depreciation rules for small business. It follows specific methods, effective lives published by the Commissioner of Taxation, and statutory caps like the car cost limit.
Accounting depreciation is what your financial statements show. It follows Australian Accounting Standards, and since AASB 16 took effect in 2019, even leased assets that used to be off-balance-sheet are now sitting as right-of-use assets and lease liabilities in many businesses.
For sole traders and small businesses that only report to the ATO, accounting depreciation is mostly academic. For larger businesses, businesses with bank covenants, or businesses preparing audited accounts, it matters. The two can produce different numbers for the same asset in the same year, and you will need both.
The 7 Smart Rules for Equipment Finance Depreciation
Here are the seven rules that decide your equipment finance depreciation position. Work through each one in order. If you do not know which finance type you have, find out before you do anything else.
Rule 1: Chattel Mortgage Means You Own It, So You Depreciate It
Under a chattel mortgage you own the asset from settlement day. The lender takes a registered security interest over it on the Personal Property Securities Register (PPSR), but legal title sits with you. This is the structure most Aussie tradies, transport operators and small business owners default to, and it has the cleanest equipment finance depreciation story.
Your equipment finance depreciation under a chattel mortgage runs on your books under either the standard Division 40 rules or the simplified small business rules, whichever applies. You can choose either the diminishing value or prime cost method (more on those in Rule 5). You also claim the GST on the purchase price upfront in the next BAS period if you are registered for GST on a cash basis. The interest component of each repayment is deductible separately, in the period you pay it.
For most owner-drivers and tradies financing a truck, a ute or a piece of plant, this is the structure that wins. Front-loaded GST, depreciation control, and at the end of the term you already own the asset outright. Our pillar guide on equipment finance explains the full structure choice in detail.
Rule 2: Hire Purchase Means You Do Not Own It Yet, But You Still Depreciate It
A commercial hire purchase is the awkward middle child of equipment finance. Legal title to the asset stays with the financier until you make the final payment. On the face of it, that should mean the financier depreciates the asset, not you. But this is where the ATO’s concept of ‘equitable ownership’ kicks in.
Because you carry the economic benefit and risk of the asset from day one, the ATO treats you as the holder for depreciation purposes. You can claim depreciation from the settlement date, the same way as under a chattel mortgage. The interest component of each repayment is deductible as it accrues. GST treatment depends on whether the agreement was entered into before or after 1 July 2012, but modern hire purchase contracts let you claim the GST upfront, just like a chattel mortgage.
So the equipment finance depreciation outcome under hire purchase is broadly the same as a chattel mortgage, but the legal ownership question can matter if you want to sell the asset, refinance it, or use it as security for another loan during the term. Worth knowing the difference if you are running multiple finance facilities.
Rule 3: Finance Lease Means No Depreciation, Just Deduct the Rentals
A finance lease flips the whole picture. The financier owns the asset. You rent it from them for a fixed term, with a residual payment at the end that you either pay out (to take ownership), refinance, or hand the asset back.
Because you do not own the asset, you cannot claim depreciation on it. Instead, you deduct the lease rentals as a business expense as you pay them, under section 8-1 of the ITAA 1997. The full rental amount is generally deductible, provided the asset is used to produce assessable income. You claim GST on each rental payment rather than upfront on the purchase price.
For some businesses this is actually the better outcome. Predictable monthly deductions, no front-loaded GST timing benefit but also no back-end balloon shock if the residual is set realistically. Where the finance lease loses out for most truckies and tradies is the equipment finance depreciation acceleration: diminishing value gives you a bigger deduction in years one and two, when a hard-working truck or piece of plant is losing value fastest. Under a lease, your equipment finance depreciation drops to zero and you forgo that early-year shield.
Rule 4: Operating Lease Means The Financier’s Asset, Not Yours
An operating lease is essentially a rental. The financier owns the asset and bears the residual value risk entirely. You pay a monthly amount to use the asset for a defined period and hand it back at the end. There is no option (or expectation) of ownership.
From an equipment finance depreciation perspective, the deduction story is similar to a finance lease. You claim the rental payments as a deductible expense, the financier claims the depreciation. The difference is mostly about who carries the obsolescence risk and what happens at the end of the term.
This structure makes sense for businesses that genuinely do not want long-term ownership, like fleet operators cycling vehicles every three years, or businesses using rapidly-obsolescing technology (medical imaging, IT hardware). It rarely makes sense for owner-drivers planning to hold a truck for five years or more. You forfeit the equipment finance depreciation acceleration without getting much in return.
Rule 5: Effective Life Decides Your Yearly Deduction
If you are depreciating an asset (Rules 1 and 2), the next question is how fast. Your equipment finance depreciation speed comes down to two things: the asset’s ‘effective life’ and the depreciation method you choose.
Effective life is the period the ATO expects an asset to be used to produce income. The Commissioner of Taxation publishes effective life determinations for most asset classes, updated annually. For most cars and utes it is 8 years. For heavy trucks it is typically 10 to 15 years depending on type. You can self-assess a shorter effective life if you can justify it (heavy haulage, severe operating conditions, mining work), but the ATO’s published rate is the safe default for most operators.
Once you have effective life, you choose a method:
- Prime cost method: spreads the deduction evenly over the asset’s effective life. An 8-year asset depreciates at 12.5% of original cost per year. Simple and predictable.
- Diminishing value method: applies a higher rate to the asset’s reducing written-down value each year. An 8-year asset depreciates at 25% (200% divided by 8) of the remaining balance each year. The deduction is bigger in early years and tapers off later.
Most Aussie business owners default to diminishing value because the early-year equipment finance depreciation deduction is bigger when cash flow matters most. Once you choose a method for an asset you generally cannot switch.
Rule 6: The Car Limit Caps Your Vehicle Depreciation
This one trips up a lot of business owners. The ATO sets a yearly limit on how much of a passenger vehicle’s cost can be depreciated. For 2025-26, the car limit is $69,674 (unchanged from 2024-25).
If you buy a $90,000 SUV for the business, you can only depreciate $69,674 of it. The extra $20,326 is gone for tax purposes, no matter how much business use you can prove. The maximum GST credit is similarly capped at $6,334 (1/11 of $69,674).
Three important things to know about the car limit and equipment finance depreciation:
- The limit applies to passenger vehicles designed to carry a load of less than one tonne and fewer than nine passengers. Utes, vans and trucks above one tonne payload are generally exempt. A dual-cab ute that can legitimately carry over one tonne payload (after subtracting the kerb weight from the GVM) avoids the limit entirely.
- The limit applies in the year the car is first used for business, and it stays with the car for the life of the asset.
- The car limit and the instant asset write-off interact in a specific way. If a vehicle is subject to the car limit and you claim the IAWO, the deduction is capped at the car limit, not the actual purchase price. Plan your vehicle equipment finance depreciation strategy around this limit.
Rule 7: IAWO and the Small Business Pool Can Change Everything
For small businesses with aggregated turnover under $10 million, the simplified depreciation rules offer two big advantages over the standard Division 40 rules.
First, the instant asset write-off lets you immediately deduct the full cost of eligible assets under the relevant threshold (currently $20,000 per asset, made permanent from 1 July 2026 in the 2026-27 Federal Budget). For your equipment finance depreciation outcome this is huge, because it works with chattel mortgage and hire purchase finance. You can claim the full deduction in the year the asset is first used or installed, even though you have financed the purchase rather than paid cash.
Second, the small business pool lets you bundle assets costing more than the IAWO threshold and depreciate the pool at 30% diminishing value (15% in the first year, since the asset has not been held for the full income year). That is significantly faster equipment finance depreciation than the standard 8-year effective life on most equipment.
Combining the IAWO with chattel mortgage finance is why many small businesses time their equipment finance depreciation strategy around the end of the financial year. You finance the asset, take possession before 30 June, and claim the full deduction in that year’s return. We have written a separate, detailed guide to the instant asset write-off and equipment finance that covers the EOFY timing rules and common mistakes.
Quick-Action Checklist
Before your next equipment finance decision or tax return, run through this checklist to nail your equipment finance depreciation position:
- Confirm the type of finance contract you have. Chattel mortgage, hire purchase, finance lease, or operating lease.
- Identify whether your business is below the $10 million simplified depreciation threshold.
- Check if the asset is subject to the car cost limit ($69,674 for 2025-26).
- Decide between diminishing value and prime cost methods, knowing you cannot switch later.
- Confirm the effective life applicable to your asset (ATO published rate or a justified self-assessed rate).
- Check whether the IAWO applies for the year of acquisition.
- If applicable, add the asset to your small business depreciation pool.
- Keep records of business-use percentage (logbook for vehicles, if applicable).
- Talk to your registered tax agent before lodging. The rules are complex and getting it wrong is expensive.
What If You Have Already Got the Structure Wrong
If you are reading this and realising your equipment finance depreciation position does not match the outcome you wanted, do not panic. A few practical points.
You cannot usually change the legal nature of an existing finance contract mid-term. A finance lease is a finance lease. But you can plan future purchases differently, refinance into a different structure where it makes commercial sense, or restructure your business’s broader equipment finance approach over time.
Once you choose a depreciation method (prime cost or diminishing value) for an asset, you are generally locked in. But if you have used the wrong effective life or made other clerical errors in past returns, your tax agent can amend prior-year returns subject to the ATO’s amendment time limits (generally two years for small businesses, four years for others).
The biggest equipment finance depreciation mistake we see is business owners doing nothing. Choosing a finance structure based on the dealer’s pitch, never reviewing the depreciation position, and missing thousands in legitimate deductions over the asset’s life. A 30-minute conversation with your accountant before signing the contract is worth its weight in deductions. If you need to talk through finance options before you commit, our team can walk you through the structures available on our lender panel for equipment finance or truck finance.
Final Thoughts
Equipment finance depreciation is one of those topics where business owners either ignore it completely or get lost in the detail. Neither is the right approach. You do not need to be an accountant to understand the basics, but you absolutely need to know the difference between a structure that lets you depreciate the asset and one that does not. That single choice can be worth thousands in cash flow over the life of an asset.
Pick the finance structure that matches your tax position, your cash flow, and your long-term plans for the asset. Talk to your accountant before you sign. Get the equipment finance depreciation method right at the start because you are stuck with it. And keep an eye on the IAWO threshold and small business pool rules, because they change more often than the rest of Division 40.
Our job at Get A Loan is matching you with the right finance structure from our lender panel. Your accountant’s job is making sure your equipment finance depreciation position works for your business. Get both right and you have got a finance arrangement that pays its way.
Disclaimer
The information in this article is general in nature and does not take into account your objectives, financial situation or needs. It is not personal advice, tax advice, legal advice or a recommendation to apply for any product. Get A Loan is not an accounting firm or a registered tax agent. Tax rules, thresholds and effective life determinations change. Before acting on any information in this article, you should consider whether it is appropriate for your circumstances and seek independent financial, legal and tax advice from a qualified professional.
Get A Loan Finance Pty Ltd is not a lender. We work with a panel of lenders and finance providers. Product features, eligibility criteria and availability can change without notice.
