Chattel Mortgage vs Car Loan: Which Is Right?
A chattel mortgage is business finance secured by the vehicle it pays for, designed for a car, ute or van used mainly for business. A car loan is consumer finance for a private buyer. That single distinction — business use versus personal use — is what drives every other difference between them, including the one most people care about: whether you can claim the GST back and deduct the running costs.
If you have an ABN, are registered for GST, and the vehicle will spend most of its life earning income, a chattel mortgage usually beats a standard car loan on tax and cash flow. If you are buying a family car and driving it to work, a consumer car loan is almost certainly the right product. This guide walks through the core difference, the GST treatment, the deductions, the balloon question, and a short checklist to help you decide.
The core difference: business finance vs consumer finance
Under a chattel mortgage, the lender advances the money, you take ownership of the "chattel" (the vehicle) from day one, and the lender registers a security interest over it on the Personal Property Securities Register (PPSR). You repay in instalments; once the loan and any balloon are cleared, the security interest is removed. It is a commercial product, so it sits outside the National Consumer Credit Protection Act — the consumer protections that apply to a personal car loan generally do not apply here.
A consumer car loan is the reverse. It is regulated credit sold to an individual for personal use, covered by the responsible-lending obligations that ASIC enforces. You still own the car and the lender still holds security over it (for a secured loan), but the purpose is private, and none of the business tax concessions below are available.
The practical test lenders apply for a chattel mortgage is that the vehicle must be used for business purposes at least 51% of the time, and you generally need an active ABN. Most also expect you to be registered for GST to unlock the input tax credit. Get the classification wrong — financing a private car as a business asset — and you risk problems with both the lender and the ATO.
GST: the input tax credit a car loan cannot give you
This is the headline reason businesses choose a chattel mortgage. When a GST-registered business buys a vehicle for business use, it can generally claim the GST included in the purchase price as an input tax credit on its next Business Activity Statement (BAS). A private buyer on a consumer car loan claims nothing — the GST is simply part of the price they pay.
There are two limits to understand. First, the claim is apportioned to business use: if the vehicle is used 80% for business and 20% privately, you claim 80% of the GST. Second, for a passenger car the credit is capped. The ATO caps the GST credit at one-eleventh of the car limit, which is $69,883 for 2026–27, giving a maximum GST credit of $6,353 regardless of how much more you paid. Commercial vehicles designed to carry a load of more than one tonne — many utes, vans and trucks — are not subject to the car limit, so the cap does not restrict them.
Worked example: $50,000 work vehicle (illustrative)
Say a GST-registered business buys a $50,000 (GST-inclusive) work vehicle on a chattel mortgage and uses it 100% for business. The GST included in that price is $50,000 ÷ 11 = $4,545, and because $50,000 is below the $69,883 car limit, the business can generally claim the full $4,545 as an input tax credit on its next BAS. A private buyer financing the same car on a consumer loan claims none of it. That $4,545 is real cash back, usually within weeks of lodging the BAS — a benefit unavailable on a private car loan.
These figures are illustrative and depend on your GST registration, business-use percentage and the vehicle type. Use the chattel mortgage calculator to model your repayments, balloon and the GST component on your own numbers, and confirm the treatment with your accountant before you sign.
Tax deductions: interest and depreciation
Beyond the up-front GST credit, a chattel mortgage lets a business deduct the ongoing costs of the vehicle for the business-use portion — something a consumer car loan does not.
Two deductions matter most. The interest charged on the chattel mortgage is deductible to the extent the vehicle is used for business. And the vehicle itself can be depreciated as a business asset, again apportioned to business use and subject to the same $69,883 car limit that caps the written-down value of a passenger car. The GST-exclusive cost is what you depreciate, since you have already recovered the GST separately.
None of this applies to a private buyer. On a consumer car loan, interest and depreciation are personal costs with no deduction. This is general information rather than tax advice, and the exact deductions depend on your circumstances — your accountant should confirm the business-use percentage and depreciation method that apply to you.
Balloon payments: common on chattel mortgages
A balloon (or residual) is a lump sum deferred to the end of the loan term. Chattel mortgages commonly include one because businesses use it to keep monthly repayments low and preserve cash flow, then either pay it out, refinance it, or sell the vehicle to cover it when the term ends.
The trade-off is the same as on any balloon finance: lower monthly payments now, a larger sum owing later, and more total interest because you are financing a higher average balance across the term. A $50,000 vehicle with a 30% balloon leaves $15,000 owing at the end — money you need to have planned for. Consumer car loans can include balloons too, but they are far more standard on chattel mortgages, where matching repayments to business income is the point.
Model different balloon sizes before you commit. The chattel mortgage calculator shows how the residual changes your monthly repayment and total interest, and for utes, vans and trucks the ute & truck loan calculator is built around work-vehicle scenarios.
Who each option suits
A chattel mortgage suits sole traders and ABN holders, partnerships and companies buying a vehicle that earns income — a tradie's ute, a courier's van, a rep's car, a farm vehicle. The requirements are an ABN, business use of at least 51%, and ideally GST registration to capture the input tax credit. The more the vehicle is used for business, the larger the GST and deduction benefits, and the stronger the case.
A consumer car loan suits private buyers: a family car, a commuter, a first car for a household. There is no ABN, no BAS, and no tax to reconcile — just a regulated loan with consumer protections and, usually, simpler paperwork. If your vehicle is mainly personal, the tax advantages of a chattel mortgage are not available to you, so the extra complexity buys you nothing. You can compare consumer options in our guide to dealer finance vs a bank loan, and model repayments with the standard car loan calculator.
There is a third path for employees rather than businesses — a salary-packaged novated lease — but that is a different arrangement between you, your employer and a financier, and it is outside the scope of this comparison.
Decision checklist
Run through these questions before you choose:
- Do you have an active ABN? No ABN generally means a chattel mortgage is not available — a consumer car loan is your path.
- Will the vehicle be used for business at least 51% of the time? If yes, a chattel mortgage is likely eligible and worthwhile. If it is mainly private, choose a consumer loan.
- Are you registered for GST? Registration is what unlocks the input tax credit on the purchase — the single biggest chattel mortgage advantage.
- Is it a passenger car or a commercial vehicle? A car over $69,883 has its GST credit and depreciation capped; a one-tonne-plus commercial vehicle usually does not.
- Do you want lower monthly repayments now? A balloon delivers that on a chattel mortgage, provided you plan for the lump sum at the end.
- Have you spoken to your accountant? The tax outcomes hinge on your specific business-use percentage and structure — confirm them before signing.
If you answered "yes" to the first three, a chattel mortgage is very likely the better structure. If you answered "no" to any of them, a consumer car loan is probably the cleaner, cheaper choice.
This is general information, not financial or tax advice. Rates, thresholds and tax treatment change and depend on your circumstances — confirm the details with your accountant or a licensed adviser before making a decision.
Frequently Asked Questions
What is the main difference between a chattel mortgage and a car loan?
A chattel mortgage is business finance secured by the vehicle, intended for a car, ute or van used mainly (at least 51%) for business by an ABN holder. A car loan is consumer finance for a private buyer. The business structure is what makes GST input tax credits and interest and depreciation deductions available on a chattel mortgage — none of which apply to a personal car loan.
Can I claim the GST back on a chattel mortgage?
Generally yes, if your business is registered for GST and the vehicle is used for business. You can claim the GST included in the purchase price as an input tax credit on your next BAS, apportioned to your business-use percentage. For a passenger car the credit is capped at one-eleventh of the car limit — a maximum of $6,353 for 2026–27. Confirm your eligibility with your accountant.
Do I need an ABN and GST registration for a chattel mortgage?
An ABN is generally required, because a chattel mortgage is a commercial product for a business asset. GST registration is not always mandatory to get the finance, but it is what lets you claim the GST input tax credit — the main tax advantage — so most businesses using a chattel mortgage are registered for GST.
Are balloon payments compulsory on a chattel mortgage?
No. A balloon is optional, but it is common on chattel mortgages because it lowers monthly repayments and helps manage cash flow. The trade-off is a lump sum owing at the end of the term and more total interest over the loan. You can model different balloon sizes with the chattel mortgage calculator before deciding.
Is a chattel mortgage cheaper than a car loan?
Not necessarily on the interest rate alone — that depends on the lender, your credit profile and the vehicle. The saving comes from tax: the GST input tax credit up front, plus deductible interest and depreciation for the business-use portion. For an eligible GST-registered business, those benefits often make a chattel mortgage cheaper overall than a consumer car loan, but the exact position depends on your circumstances and should be checked with your accountant.
Can I use a chattel mortgage for a private car?
No. A chattel mortgage requires the vehicle to be used mainly for business (at least 51% of the time). Financing a mainly private car this way risks problems with both the lender and the ATO. If your car is mostly for personal use, a consumer car loan is the correct product — you can compare options with the car loan calculator.