Key takeaways
- Ownership is the core difference: a chattel mortgage puts the asset on your books from day one, while a finance lease keeps the lender as legal owner for the term.
- GST timing differs: chattel mortgage lets a GST-registered business on cash accounting claim the full GST credit upfront on its next BAS. A finance lease spreads GST claims across each rental payment.
- Depreciation follows ownership: only the chattel mortgage lets your business claim depreciation directly, since the lender owns the asset under a finance lease.
- Around 60 percent of Australian equipment finance deals use a chattel mortgage (AFIA, 2024), making it the default structure for SMEs wanting ownership and tax deductions.
- Neither is universally cheaper: the right choice depends on how long you will keep the asset, how fast it depreciates, and whether you want it on or off your balance sheet.
Every business financing a vehicle, forklift or piece of machinery in Australia eventually hits the same fork in the road: chattel mortgage or finance lease. Both get you using the asset with minimal upfront cash, but they treat ownership, tax and GST differently enough that picking the wrong one can cost thousands over the life of the finance. Here is how each structure works in 2026, and how to tell which fits your business.
How a chattel mortgage works
Under a chattel mortgage, your business borrows the funds and takes ownership of the asset immediately, while the lender registers a security interest until the loan is repaid. You are on the hook for insurance, maintenance and registration from day one, but you get the tax benefits of ownership. Terms typically run one to seven years, and a balloon of 20 to 50 percent is common on vehicles, lower on plant and equipment.
- GST: GST-registered businesses on cash accounting claim the full credit on the purchase price on their next BAS.
- Depreciation: claimed annually under the relevant ATO schedule, or the instant asset write-off if the asset qualifies.
- Interest: the interest component of each repayment is a deductible business expense.
How a finance lease works
A finance lease flips the ownership arrangement. The lender buys the asset and leases it to your business for an agreed term, with a residual payable at the end if you want to keep it, refinance it, or hand it back. The ATO publishes minimum residual percentages by term to stop lenders inflating the residual to shrink your rental payments.
- GST: claimed progressively on each lease payment rather than upfront, suiting businesses that prefer to match claims to cash flow.
- Depreciation: not available to the lessee. Instead, the full lease payment is typically deductible.
- Balance sheet treatment: a lease may be recorded as a right-of-use asset rather than owned plant and equipment.
Chattel mortgage vs finance lease at a glance
| Feature | Chattel mortgage | Finance lease |
|---|---|---|
| Ownership during term | Your business, from day one | The lender |
| GST claim timing | Upfront, on next BAS | Progressively, per payment |
| Depreciation | Claimed by your business | Not available to the lessee |
| End of term | Pay the balloon, refinance, or sell | Pay the residual, return, or upgrade |
| Best suited to | Assets you plan to keep and depreciate | Assets you upgrade regularly |
Why the split matters for asset lifespan
For long-life assets such as a prime mover or industrial machinery, a chattel mortgage tends to be more cost-effective over time because you are building equity in an asset you intend to hold for years. For rapidly depreciating gear that is superseded every few years, a finance lease can offer better value because you are not carrying a book value that no longer reflects market price.
A practical example
A Melbourne dental practice needs a new imaging system every four to five years as the technology moves quickly. Rather than owning equipment that is functionally outdated before it is paid off, the practice uses a finance lease so it can upgrade at the end of each term. Compare that to a forklift purchased by a warehousing business expecting to run it for eight or nine years: a chattel mortgage suits that business better, since it wants the depreciation and GST benefits of ownership on an asset it will keep well past the loan term.
The 2026 tax backdrop
The 20,000 dollar instant asset write-off applied to eligible assets first used between 1 July 2025 and 30 June 2026, for businesses with turnover under 10 million dollars, and only to assets purchased outright or under a chattel mortgage, not leased assets. From 1 July 2026 the threshold reverts to 1,000 dollars unless extended. If instant deductibility on smaller purchases matters to your decision, that favours a chattel mortgage, since leased assets have never qualified for the write-off.
Questions to ask before you choose
- How long will you actually keep the asset? Match the finance structure to your real usage horizon, not the shortest term that produces the lowest repayment.
- Do you want the GST credit now or spread out? A large upfront credit under a chattel mortgage can meaningfully improve cash flow in the quarter after purchase.
- Does off-balance-sheet treatment matter? Businesses managing covenants or seeking future property finance sometimes prefer the lease's treatment.
- Is the asset likely to be superseded? Fast-changing technology usually favours a lease; long-life plant usually favours ownership.
Frequently asked questions
Do I need an accountant to decide between a chattel mortgage and a finance lease?
It is strongly recommended. The right choice depends on your GST position, your accounting method, depreciation strategy and how long you plan to keep the asset, which your accountant can assess against your specific tax position.
Can I claim the instant asset write-off on a leased asset?
No. The write-off only applies to assets purchased outright or under a chattel mortgage, not leased assets, which is a point in favour of a chattel mortgage if instant deductibility matters to you.
Which structure is better for cash flow?
Depends what you mean. A chattel mortgage delivers a larger upfront GST credit, improving cash flow in the first BAS period. A finance lease spreads GST across each payment and often has little to no deposit.
Can I switch structures partway through a term?
Not without effectively refinancing, which means paying out the existing facility and starting a new one. It is worth getting the initial choice right rather than assuming you can switch later without cost.
Can I claim depreciation on equipment under a finance lease?
No. The lender retains ownership under a finance lease, so depreciation is not available to your business. Instead, the full lease payment is typically deductible as a business expense.
What matters most
Neither structure is inherently better. A chattel mortgage suits a business that wants to own the asset, claim depreciation, and take the GST credit early. A finance lease suits a business that values flexibility, expects to upgrade often, or prefers lease payments over ownership on its books. Work through the asset's expected life, your GST position and your growth plans with your accountant before signing, because the wrong structure on the right asset can cost more than the difference in headline rate ever suggests.
Not sure whether a chattel mortgage or finance lease suits your next equipment purchase? Click here to get a free quote.