The short version
- A chattel mortgage gives the business ownership of the asset on day one. The lender registers a security interest on the PPSR and discharges it when the loan clears. The business claims the GST upfront, depreciates the asset, and deducts the interest.
- An operating lease keeps the asset on the lender's books. The business pays rent for the term, deducts the rent, claims GST on each payment, and hands the asset back at the end.
- The tax treatment is the real decision driver. A chattel mortgage suits a business that wants to own the asset and claim depreciation; an operating lease suits a business that wants to upgrade on a cycle and keep the cost as a clean operating expense.
- Neither is cheaper in the abstract. A chattel mortgage usually wins on total cost if you hold the asset to the end of its working life. An operating lease can win on monthly cashflow and removes the residual-value risk.
Most asset finance decisions in Australia come down to two structures: the chattel mortgage and the lease. The chattel mortgage is the default. It accounts for the majority of business asset finance written in the country. But for some assets, and some businesses, a lease is the better structure, and an operating lease in particular changes the tax and balance-sheet position in ways that matter. Both sit inside the broader asset finance category, alongside hire purchase and the finance lease. This article sets out what each structure actually is, how the two compare line by line, and the part most comparison pages skim: how the GST, depreciation and balance-sheet treatment really work. The right answer depends on the deal — there is no structure that suits every business.
What is a chattel mortgage?
A chattel mortgage is a loan where the business takes ownership of the asset on day one and the lender registers a security interest over it on the Personal Property Securities Register (PPSR) until the loan is repaid.
The mechanics are simple. The lender pays the supplier in full at settlement. The business takes delivery and owns the asset outright, subject to the lender's registered security. It repays the loan in monthly instalments over a term of one to seven years, and the lender's interest is discharged with the final payment. If the business defaults, the lender can repossess and sell the asset to recover the debt.
The tax position is why most Australian businesses choose it. Because the business owns the asset from settlement, a GST-registered business using the asset for business purposes claims the full GST credit on the purchase price on its next Business Activity Statement — not spread across the term. On a $110K vehicle, that is roughly a $10K GST credit back in one BAS cycle. The business also claims depreciation on the asset under Division 40 of the income tax law, and the interest portion of each repayment is deductible.
Chattel mortgages commonly run one to five years on vehicles, longer on heavy plant, and a balloon payment at the end is normal — typically 20-40% of the financed amount. The structure suits a business that intends to keep the asset, wants the depreciation deduction, and wants the GST back upfront.
What is an operating lease?
An operating lease is a rental arrangement: the lender owns the asset, the business pays to use it over a fixed term, and the asset goes back to the lender at the end with no obligation to buy it.
The lender carries the residual-value risk — they are the ones who have to dispose of the asset when it comes back. That risk is priced into the rentals, which is why an operating lease usually costs more than a chattel mortgage on a like-for-like asset. In return, the business never holds a depreciating asset it has to resell, and the cost sits in the accounts as a clean operating expense.
The tax treatment runs the other way to a chattel mortgage. The business does not own the asset, so it claims no depreciation. Instead the full lease rental is deductible as an operating expense, to the extent the asset is used for business. GST is charged on each rental payment and the business claims the credit progressively, payment by payment, rather than in one hit upfront.
Operating leases run two to five years and suit assets that date quickly: IT hardware, diagnostic and imaging equipment, some commercial vehicles. The business would rather refresh on a cycle than own, depreciate and resell. They are also used where a business wants to keep the cost off its balance sheet, subject to the accounting-standard nuance below.
Chattel mortgage vs operating lease: side by side
| Category | Chattel mortgage | Operating lease |
|---|---|---|
| Ownership | Business owns from day one; lender holds a PPSR security interest | Lender owns throughout; asset returned at end of term |
| GST | Claimed upfront on the purchase price, on the next BAS | Claimed on each rental payment as it falls due |
| Depreciation | Business claims it under Division 40 | None — the business does not own the asset |
| What is deductible | Interest portion of repayments, plus depreciation | The full rental, as an operating expense |
| Balance sheet | Asset and matching liability sit on the books | Right-of-use asset and lease liability if AASB 16 applies; otherwise off balance sheet |
| Typical term | 1-7 years, balloon payment common | 2-5 years, no residual payable by the business |
| End of term | Business already owns the asset outright | Asset handed back; re-lease, extend, or walk away |
| Best suited to | Holding the asset, claiming depreciation, GST back upfront | Regular upgrades, clean operating expense, no residual risk |
How the tax treatment really works
This is the section that decides most deals, and the one most comparison pages gloss over. Three things differ between the two structures: when you claim GST, whether you depreciate, and how the asset hits your balance sheet.
GST
Under a chattel mortgage, the business owns the goods from settlement, so a GST-registered business claims the full GST credit on the asset's purchase price on the BAS for the period of acquisition. The finance itself carries no GST — interest on a loan is an input-taxed financial supply, not a taxable one.
Under an operating lease, GST applies to each rental payment. The business claims the credit on each payment as it is incurred, across the life of the lease, rather than upfront. For a GST-registered business the total credit is similar either way; the difference is timing, and on a large asset the upfront credit under a chattel mortgage can mean a meaningful BAS refund in the first quarter after purchase.
One caveat on vehicles. Where the asset is a car as the ATO defines it, the GST credit is capped at one-eleventh of the car limit, and depreciation is capped at the car limit as well. The car limit is indexed each year, so check the current figure with the ATO before relying on it for a specific deal.
Depreciation
Where the business owns the asset, as it does under a chattel mortgage, it claims depreciation under Division 40 at the effective life the ATO sets for that asset class. Small businesses under the turnover threshold may be able to write the asset off immediately under the instant asset write-off instead, but that threshold has moved repeatedly through recent budgets, so confirm the current limit before counting on it.
Where the lender owns the asset, as it does under an operating lease, the business claims no depreciation at all. The deduction comes through the rental expense instead. That is not a worse outcome, just a different one: a chattel mortgage front-loads the deduction through depreciation and any instant write-off, while an operating lease spreads it evenly across the rentals.
Balance sheet treatment
A chattel mortgage puts the asset and the matching loan liability on the business's balance sheet, the same as any owned asset funded by debt.
An operating lease is where the accounting standard matters. AASB 16, the lease accounting standard in force since 2019, requires a business that prepares financial statements under Australian Accounting Standards to bring most leases onto the balance sheet as a right-of-use asset and a corresponding lease liability. The old off-balance-sheet treatment of operating leases has largely gone for those entities. There are limited carve-outs for short-term leases of 12 months or less and for low-value assets. Many smaller businesses that prepare only special-purpose or tax-based accounts are not required to apply AASB 16, so for them an operating lease can still sit off the balance sheet. Whether the standard binds your business turns on the kind of accounts you prepare, not on the size of the deal — it is a question for your accountant.
When a chattel mortgage suits
A chattel mortgage is usually the right structure when the business wants to own the asset and use it to the end of its working life.
It suits any business that wants the depreciation deduction and the GST back in one BAS cycle rather than drip-fed across a lease. For a profitable business buying a $200K piece of plant it intends to run for a decade, the upfront GST credit and the Division 40 depreciation (or an instant write-off, if eligible) are worth more than the cashflow smoothing a lease offers.
It suits assets that hold their value and have a long working life: yellow goods, manufacturing plant, trucks, trailers. There is little sense in paying a lender to carry residual risk on an asset that will last fifteen years and that the business has no intention of handing back.
And it suits a business that wants to build equity in its assets. Every repayment reduces the debt against an asset the business already owns. At the end of the term, once any balloon is paid, the asset is unencumbered and sits on the books at its written-down value.
When an operating lease suits
An operating lease is the right call when the business would rather use an asset than own it, and wants to hand back the residual-value risk with it.
It suits assets that date fast. IT hardware, diagnostic and imaging equipment, point-of-sale fleets — anything where the model bought today is obsolete in three years. An operating lease lets the business refresh on a cycle without ever having to resell a depreciated asset into a thin second-hand market.
It suits a business that wants the cost to read as a clean operating expense and, where AASB 16 does not bind it, to keep the commitment off the balance sheet. For some businesses the reporting treatment genuinely matters to a lending covenant or a board that watches gearing.
And it suits a business that does not want residual-value risk at all. On an asset with an uncertain resale market, the premium the lender charges to carry that risk can be cheaper than the loss the business would wear trying to sell the thing itself in three years.
When neither is the answer
Sometimes the right structure is neither a chattel mortgage nor an operating lease.
If the business wants to own the asset but spread the GST across the term the way a lease does, a hire purchase or a finance lease sits between the two. The finance lease keeps the GST on the rentals but is built around the business taking the asset at the end via a residual — a different shape again to the operating lease's clean hand-back.
And sometimes the answer is not finance at all. A business sitting on surplus cash at the end of a strong year, buying an asset it will hold for the long term, may be better off paying cash and preserving its borrowing capacity for a deal where leverage actually helps. A broker's job is to say so when that is the case, not to write finance for its own sake.
The structure is only half the decision. Which lender writes it, and whether a bank or a non-bank lender is the better fit, is the other half, and it moves the rate and the terms as much as the choice between the two structures does. Aurelius Capital writes both across our asset finance panel.
If you are sizing up an asset purchase and want a broker's read on which structure suits your tax position and your asset profile, whether that is a chattel mortgage, an operating lease, or one of the structures in between, the application form is below. Most enquiries get a response within four business hours.