Chattel Mortgage vs Lease: Which Structure Actually Suits Your Business

The repayments on a chattel mortgage vs lease can look almost identical on the same piece of equipment. They are not the same deal. The structure you sign decides who owns the asset, when you get the GST back, and what you can deduct for the life of the loan.

Most owners compare the repayment and stop there, which is the one number the two structures are built to make look similar. Here is how the ATO treats each. Your accountant makes the final call, because the answer depends on your entity and your GST reporting method.

Ownership is the fork in the road

Under a chattel mortgage you buy the asset. Title passes to you at purchase, it goes on your books, and the lender registers a security interest over it until the loan is repaid. You own it from day one, with a debt attached.

Under a lease the financier buys the asset and you rent it. The ATO puts it plainly: the lessor is the owner of the goods, and the lessee uses them for a specified time in return for a series of payments. At the end you hand the asset back, extend, or pay a residual to buy it.

Where the GST lands, and why timing beats amount

Both routes let a GST-registered business recover the GST, on completely different schedules. That is a cash flow difference rather than a tax saving.

Where ownership transfers, the ATO treats the arrangement as a stand-alone purchase in a single tax period. For hire purchase agreements entered into on or after 1 July 2012, it states you can claim the full GST credit in the tax period when you make your first payment, or when a tax invoice is issued if that comes first, whether you account for GST on a cash or non-cash basis. A chattel mortgage sits on that side of the line, because title passes at the point of sale.

For a lease, the ATO's position is that each payment is treated as though you are making a separate purchase each tax period. You claim one-eleventh of each instalment across the whole term.

Chattel mortgage vs lease at a glance

On a $110,000 machine that is roughly $10,000 of GST arriving in your next activity statement rather than trickling back over four or five years. If cash is tight in the quarter you buy, that is the most useful line on this page. Worth knowing too: the ATO treats a payment made to take ownership at the end of a lease as a separate transaction, so GST may apply to that residual on top of the instalments.

What you can actually deduct under each

The ATO's guidance on business motor vehicle expenses sets both routes out side by side. It confirms the vehicle must be owned, leased or under a hire-purchase agreement, and lists claimable expenses as including interest on a motor vehicle loan, lease payments, and depreciation, or decline in value.

That list holds both answers. Own the asset and you claim depreciation plus the interest component of your repayments, but not the principal, because that is you repaying a debt.

Lease it and you claim the payments as an operating expense with no depreciation. The same logic applies to equipment and machinery, not only vehicles.

So comparing the two on total deductions alone is misleading. A lease often produces a larger deduction early, since the whole payment is claimable, while a chattel mortgage is front-loaded on the GST instead.

The car limit catches passenger vehicles either way

If the asset is a passenger vehicle there is a ceiling plenty of owners meet for the first time at tax time. The ATO has published the 2026-27 thresholds: the car limit is $69,883, the maximum value you can use to calculate depreciation on a vehicle you use for business and first use or lease in that income year. Buy above the limit and the most GST credit you can generally claim is one-eleventh of it, which for 2026-27 is $6,353.

It applies to passenger vehicles designed to carry fewer than 9 passengers and a load under one tonne. Work vehicles above one tonne of payload sit outside it, so check the compliance plate before you commit.

Where the instant asset write-off fits

The write-off is often presented as a reason to choose one structure over the other. It follows ownership, so it is available on the chattel mortgage side and not on a lease.

The ATO's published position is that eligible businesses can claim an immediate deduction for the business portion of an asset's cost in the year it is first used or installed ready for use, where the asset costs less than the relevant limit. Its table sets that limit at $20,000 for businesses under $10 million aggregated turnover using the simplified depreciation rules. It applies per asset, and anything costing the limit or more goes into the small business pool instead.

On timing, the Treasury Laws Amendment (Tax Reform No. 2) Bill 2026, which permanently extends the $20,000 write-off from 1 July 2026, passed both Houses on 19 August 2026 and is awaiting Royal Assent.

The ATO's published limit table still stops at 30 June 2026, so its guidance has not caught up yet. Confirm the current position with your accountant before timing a purchase around it.

Three questions that usually settle it

When is your cash tightest? If the answer is the next quarter, the up-front GST credit under a chattel mortgage is doing more for you than a slightly lower repayment.

Do you want the asset at the end? If you will run the machine into the ground, buying it once beats leasing it and paying a residual to buy it anyway. If you replace on a cycle, a lease is built for that.

How is your entity taxed, and when do you need the deduction? A company, a trust and a sole trader do not get the same outcome from the same structure. Hand this one to your accountant.

What to do next

Get quotes for both structures on the same asset, term and deposit, and ask each financier for the total cost over the full term rather than the monthly repayment. Ask what the residual or balloon is, and what happens at the end if you want to keep the asset.

Then take both to your accountant with three things: your GST reporting method, your entity type, and how long you expect to keep the asset. Those decide the answer more than the rate does. If it is a passenger vehicle, bring the compliance plate figures too.

If the chattel mortgage vs lease decision is holding up your next purchase, Emu Money's finance specialists can compare options across 50+ lenders and talk through how each structure would work for your business. Subject to lender approval, terms and conditions apply.